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Two batteries naming issue ("Battery 0, Battery 1" instead of "Battery1, Battery 2")

Q: Two batteries naming issue ("Battery 0, Battery 1" instead of "Battery1, Battery 2")

Hi guys. I have a T470 and after the latest Windows update I encountered a battery naming issue. Before the update batteries had proper order and were named accordingly: battery 1, battery 2, no surprises here. But after the update I noticed the order has changed to battery 0, battery 1 (attached pic below) Yeah yeah, I understand arrays start at zero but what is that? I was just wondering is it just me or you guys have the same situation going on with your batteries? Is there a way to change the order back to "normal"? .

battery_issue.JPG ?20 KB

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Preferred Solution: Two batteries naming issue ("Battery 0, Battery 1" instead of "Battery1, Battery 2")

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T470S with Windows 7, this is the 3rd year in use. Most of the time it has the power adapter plugged in. I set the battery charge mode at "Optimize for battery life", it normally will charge up to 75% then stop charging.  Two days ago something strange happened: first I noticed that it will charge to 49% then stop, then couple of hours later it's 17%. I just thought there's no way that both batteries could deteriorate so fast, it must be the battery gauge. So I clicked the "Perfrom Reset" button to reset the battery gauge, and let it run it's full course over night.  This morning when I check it, it's only 4% left. Needless to say if I un-plug the power cord, it will shut down instantly. But when I opened the "Lenovo Power Control", and view the status of battery, to my surprise, it says condition of both batteries are "Good" and gives me a green icon. But it does show that battery 1 (the 21.2Wh one) is 0% remaining, and battery 2 (the 19.73Wh one) is 7% remaining. Seems that battery 1 is completely drained, and won't charge, and battery 2 is barely charging, but the question is: why the Power Control still shows Condition Good? How to tell if the battery is really dead or not, besides using the Lenovo Power Control? I changed the battery charging mode to "Always Fully Charge", and waited for half an hour, no, magic didn't happen, it's still 4%. Anybody has similiar experience? Any advice is appreciated!

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Hello, Laptop: Lenovo ThinkPad T470 UltrabookType: 20HD I usually do not have my laptop's battery installed when it is plugged with the AC adapter as I use it mainly at home. But today, while I was out, I inserted it (while the laptop was off) and I received the following error message: "Battery 2: A battery error has occurred. The battery cannot be charged. Replace the battery." I've had this laptop for only a year, and everything is up to date. I only take out and put in the battery when the laptop is turned off. According to the battery percentage, it's stuck at 49% and says it's not charging. 49% Not ChargingBattery 1: 100% and fully chargedBattery 2: 0% and not charging I tried checking the battery in Lenovo Vantage, but it just keeps showing the loading animation, but with no info. Does this really mean the battery needs to be replaced (already)? Could it be a software issue? Thanks.

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My husband bought me a new ThinkPad in June 2019.  I am now getting a "Battery 1:  A battery error has occurred.  The batter cannot be charged.  Replace the battery." error message.  Any recommendations??? Thanks!Kim Savincki  

A:New Thinkpad in June 2019. Now getting Battery 1: A battery error has occurred. The battery canno

what model?  Most machines' batteries have 1 year warranty on battery.  If that is the case, call support.  In U.S., the number is 1-800-426-7378

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Battery 1 : No battery has been detected. Reinstall or recharge the battery to solve the issue.  That's what I'm constantly getting while using the laptop. The message has been appearing since two weeks or so and I don't know what to do. Battery 1 is not detected by the laptop when I insert the battery number 2:  But if I remove battery number 2, battery number 1 works properly.  I tried to hard reset the battery, uninstall the battery drivers and restart the laptop, last but not least update all the updatable, but nothing has solved the issue. 

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Product informationLess than week old Lenovo T430S6cell LI Battery T81+Microsoft Windows 8 64bit Issue After working for multiple days, the battery decided to stop charging yesterday. Upon loading the desktop, I get this error message.  I Googled this issue and found that other people have had similar problems. Some of the solutions I tried (and did not work) are: Reinstalling Lenovo Power ManagerUninstalling  Microsoft ACPI Compliant Control Method BatteryRemoving the battery and putting it back in  As it stands, the battery menu says "Plugged in, not charging" and is stuck at 84%.  If anyone could give me other ideas, I would greatly appreciate it. I am assuming it's not a hardware issue as the battery is brand new and was working just fine a few days ago.  

A:Brand New T430s: A battery error has occurred. The battery cannot be charged. Replace the battery.

Not sure if there's any known quirks with that combination of hardware and software, but it sounds to me like the battery had a spontaneous failure, in which case you should just get it replaced under warranty.

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After my friend's laptop wouldn't run on battery power OR charge the battery I tried many "fixes."
Shockingly none worked that I found.
Only one thing worked for me to my surprise.
A last ditch effort was to open up the laptop (sony pcg-81114L) and disconnect the cmos battery for a few minutes to reset the CMOS.
To my surprise, when powered on, the battery instantly showed it was charging AND when removing the power plug the battery POWERS the laptop now! (and I'd thought I was wasting my time.)
Worked with an off brand battery also.
Many times this has saved many computers that have odd "unsolvable" things wrong with them.
Surely someone else has done this also but I haven't seen it posted anywhere to my knowledge.
Thank GOD for bringing the idea to remembrance!

A:sony vaio won't charge battery or run on battery power (CMOS BATTERY FIX!)

Hi askfault,
Do you have any information on how this fixes the battery problem? would be interested to know.

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Battery Issue - Lenovo V570 (Laptop) - Battery Model L09S6Y02

First off I for the most part do not use the battery. It is normally detached from the laptop. I only attach it to periodically charge it and test prior existing charges' performance.

O.K. here is the problem. I attach battery attachment, computer does not make it to the window screen more often than not. When it does, it freezes at the please wait loading screen.

I rarely use the battery at all, but I want all my equipment up and functional. It's life should still be good for I periodically recharge it. I think since I've had the laptop I've only recharged it a total of 6 or 7 times and that's been a year or so.

A:Battery Issue - Lenovo V570 (Laptop) - Battery Model L09S6Y02

jonasdatum said:

Battery Issue - Lenovo V570 (Laptop) - Battery Model L09S6Y02

O.K. here is the problem. I attach battery attachment, computer does not make it to the window screen more often than not. When it does, it freezes at the please wait loading screen.

I rarely use the battery at all, but I want all my equipment up and functional. It's life should still be good for I periodically recharge it. I think since I've had the laptop I've only recharged it a total of 6 or 7 times and that's been a year or so.Click to expand...

I, for the moment at least have the battery working power adapter attached. What did I do? I uninstalled Avast (freeware version) ?

I learned from prior experience that running two of any system utility software can cause problems, but it normally restricts itself to what it is protecting. Then I remembered: "If you remove the possible whatever is left however in probable must be the truth."

Next phase of testing is test the battery on it's own.

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Hello brain trust. - I purchased a Yoga c930 for my daughter to use at college and I noticed that after shutting down (using windoes shut down, not sleep mode), the battery will deplete down to around 25% after sitting totally off for just 4 days. I've tested this a couple of times and it's consistent. In addition, it will then fully charge after around 45 minutes on the charger, even though the charge icon in the systray says it will take around double that time I've not used it enough to check the battery life in use, but since my Dell laptop will fire up after going weeks and weeks without a charge, there seems to be something wrong with this machine if it's depleting the battery like that while totally shut down. Any suggestions on what to check or how to diagnose why this is happening?  Thanks in advance

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Wrote a month or so ago about a faulty U330 battery.  I replaced it with a new one and am having the same issue--rapid discharge. For example, the battery power goes from 100% to 95% within 3 mintues, from 95% to 73% within 15 minutes.  With the original battery, I noticed that its power could stay at 0% for quite some time before the computer shut down. The battery lasts a decently long time, but the real issue is that I pretty much have spontaneous shutdowns since I can't predict the actual power remaining. Could this be a Win 7 issue and not an issue with the battery's actual capacity? Any other suggestions on how to fix this? 

A:U330 Battery Issue--New Battery, Still Discharging Fast

Hey Gurbly,
Curious to know is the replacement battery that you bought is it from Lenovo or is it a generic brand battery ?
If this is a Lenovo battery, might I suggest the following link :
If the above does not help, could you try the following.
1. Replacement Battery to be drained.
2. Replacement Battery to be fully charge. During this time do not turn on the U330
3. Once fully charge, turn on computer and login to your operating system. Do not launch any application and if possible disable any apps that auto starts.
4. Change the power management to "do not turn off hard drive and monitor" when battery is used
5. Adjust screen brightness to 50%
6. Leave the laptop idle,
7. Check within 3-5 minutes if the battery level drops from 100% to 95%
8. record your finding and reply back.

WW Social MediaImportant Note: If you need help, post your question in the forum, and include your system type, model number and OS. Do not post your serial number.Did someone help you today? Press the star on the left to thank them with a Kudo!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! Follow @LenovoForums on Twitter!Have you checked out the Community Knowledgebase yet?!How to send a private message? --> Check out this article.

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Hey there,
I've been using my upgraded Inpiron 17R SE happily for a couple of years by now. I've even gone as far as buying an 128GB SSD to futureproof it. This is the only drive - besides the DVD drive - currently present in the laptop. However I've had an issue for quite a while:
Whenever I try to boot the Laptop only using the Battery (even fully charged) it Posts then loads Windows and turns of just before the Login-Screen (I can't see it). When I proceed to turn it back on, it Posts then beeps and says that there is a Real Time Clock Error and gives me the option to proceed booting or to enter Setup.
This however doesn't occur when using the Power-Brick. Moreover it isn't always the case. Sometimes the Laptop boots and works fine just using the battery, but then upon opening a Programm (while under battery-power) it shuts of and gives the same error message again. If it decides to work the battery still lasts for 2-2.5 hours.
I'm really confused to what the problem is. It could be a power delivery problem, but it's still the original battery and laptop with only the HDD changed to a SSD.
I'm aware of it being a rather old machine, but selling it is my only hope for getting a new laptop for college, but I can't sell it in this state. 
I'm at a lost and really really sad because of this issue. I'm sorry for any typos or grammar mistakes, I'm a non native english speaker.

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Hey, I really need help. I'm having problems with my laptop. It's a dell inspiron 7559 and was bought around January. Recently I have seen that the battery has no longer been as hot as it used to be when I first started using it. Along with the sleeve on the tip of the screen power adapter (below the part where the adapter lights up) has started to come off, exposing the wires. The battery has continually dropped down its percentage rate ever since I bought it, and it won't go back up. It is currently at 0% battery life and it says when you highlight over the battery icon ( plugged in, not charging). It also happens to show the BIO setup when I start the computer and shows that the batteries wattage and type cannot be determined. In the BIOS setup, the ac adapter type is unknown. The battery has not been through any harsh conditions along with the laptop. I have tried removing the battery, starting up the computer with the ac adapter (which is 130 watts), then adding the battery back, and ac adapter, then turning it on, but it had no effects. If I remove my ac adapter while my computer is on ,it instantly turns off. If someone can support me with this issue, it would be gladly appreciated. Thanks.

A:Laptop battery not charging, battery not identified, 0% battery life

It sounds likely the charge circuit on the mainboard is damaged.  Contact Dell to have the mainboard replaced under warranty.

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Hello everyone! Not sure if this is an issue but it's surely annoying to know, that battery N1 drains at 5% and the other stays at 100%. Is it possible for a mixed discharge between both batteries ?After all the LIFE of the first battery (while using battery only power) is shortened a lot! Is there any option in LENOVO VANTIGE that I am no aware of ?I looked everywhere and i can't find anything.. Bios latest update 1.30 Thank you very much!

A:T470s BATTERY 1 drains to 5%, BATTERY 2 stays at 100% (BATTERY PRIORITY)

Sorry  but see below post.  Basically you cant set discharge order.  The laptop checks battery wear and bases discharge order on that.  Many people including myself have asked for a BIOS switch or at least an option on discharge order but nothing has happened so far and I dont think its going to happen either.  I do not speak for Lenovo..

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Thanks for reading this. i have never posted anything in my life but i am stumped and need some help!
I got a dell inspiron 2200 and one day i was running it while it was pluged in and i unpluged it and the laptop just "Bloop" shut off......i tried turning it back on but nothing. just as if i had no battery in it at all. when i pluged it back in it fired up like normal i checked the battery meter and it said 97% full then charged up to 100% full but still it wont run off the battery. as soon as i unplug it it shuts right off.

Someone told me to run the battery calibration but my bios doesnt have an option for it. at least i cant find it. i know it has it somewere because when i first bought this laptop the screen was broke and when i bought a new one for it and booted it up it said i had to run the battery calibration befor it could start "not sure why" but i did...watched it drain and charge. so i know it's in here somewere. do you think this would even help?

Also i think i updated the bios so it might have had an older bios witch might have had the battery calibration and the new one i put on doesnt. It has verison A07 now. i tried "downgrading" to A05 and A06 but it doesnt let me, Says i have a newer verison and cannot install an older verison.

Stinks. this problem kinda takes the "Mobil" feature out of a laptop. Any help would be Awesome!

A:Laptop battery issue ??battery calibration??

i'm afraid the battery calibration program is only used to initialize new Li-Ion batteries which need to be prepped with an initial charge-discharge cycle.

It sounds to me like you have a battery composed of 32 (probably AA sized) cells.
One of those cells has died and hence you see only 97% charge. Unfortunately losing a single cell prevents current from entering or leaving the battery so your battery will not discharge correctly therefore shutoff without discharge.

I think you need a new battery. Although it may be possible to replace the single bad cell, other cells may be degraded also - if one cell failed, why not others? unit could have been exposed to heat etc.

Although I was an engineer for Gould, I am not a battery expert!

good luck!

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Hi, Just purchased a T470, I'm a bit confused with how each battery is named (Battery 1 vs Battery 2)Which one refers to the internal battery and which one refers to the external battery? Kind regards

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Yesterday my laptop (Acer Aspire 5050) was on but I had the lid closed. I laid it aside and somehow the ac adapter was disconnected at the converter box and the battery ran out. When I turned on my laptop today, it was a really slow startup (normally it only takes 1 minute), the arrow/pointer was frozen, and the battery/plug icon had a red X on it with the battery showing empty. I restarted the computer and was able to hover over the icon before it froze up. It said battery was 1%, plugged in but not charging. I checked the battery, it was secure. I tried taking off the battery and putting it back on. It was then showing a green battery & plug, and 100% charged. But whenever I hover over the battery icon, the red X and empty battery icon comes back, but it'll still say 100% fully charged. The computer will function properly until I turn it off and restart. Then I have to do the same process of taking off battery & putting back on before the pointer/arrow will unfreeze and I'm able to use the laptop.
Any ideas what is going on?

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My year old Averatec c3500 notebook was stored for a couple months. When I started it the main battery was empty (of course). and the clock icon showed time/date that was way off. I considered this probably normal.

Now when I store the PC for even three days the clock needs to be reset, although the main battery seems to still have at least a negligible amount of power left (will show a short slideshow of photo's.)

I have two questions:
1. Is there a small CMOS battery that might need replacing ? and does that battery get recharged from the main battery? Where would that be located ?

2. What is the best way to refresh my main battery? I have opinion if I totally discharge/recharge it will come back to total storage.

A:Notebook PC battery (batteries?)

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ok, - this is really a question for the altruist soul who doesn't mind me taking advantege of your espertise with technology!
you are all very helpful for my PC issues, am wondering if you could help me with womething related to technoloy: recahargeable batteries!

I have a new digital camera and 2 new Ni-MH rechargable batteries: I thought I had a battery charger for them and I do but don't know if it's for "them"-ie: I have 2 Ni-Cad rechargables batteries and 2 Ni-MH ones, the chargeer has 4 slots for batteries can I recharge all four in the same charger at the same time?????????????

If anyone would be so kind to help, it would be truly appreciated.

Many thanks
and regards


A:Ni-Cad battery charger for Ni-MH rechargable batteries

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Hello. I have a question. Regarding Battery Backup UPS systems, having a dual or 2 batteries incorporated into the unit better than having just one battery? They are usually 12 volts each.
Under typical conditions, regardless of the wattage needed; would the runtime (running due to loss of power) be increased or not? ...but how? Is this significant increased in runtime or not? It is truly worth having a second LEAD battery backup in your unit?
Please reply.
Thank you!

A:Having 2 Batteries For A Battery Backups System Work Better Than 1?

Having a second battery will increase either voltage or capacity, depending on how they are wired. Hooked up in series will increase the voltage, so 12V > 24V system. Parallel wiring will increase the capacity and thus run-time.

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I'm running Win 8.1 on a tablet with a dock that has a seperate battery and I'm having an issue where the docks battery will be completely used up and then will not charge unless i remove the tablet and jump start the battery in the dock so to speak.
I would like to be able to set a reserve battery level for the docks battery specifically but Windows seems to pool both batteries together while acknowledging them both as seperate.
Is it possible to seperate the batteries so I can have a reserve battery level for each one individually or is this a hardware issue?

A:Reserve Battery Level - Multiple Batteries

I'm not real good with tablets, but the exact make and model would help us to research this.

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Hello. I have a question about battery backup systems or UPS where now they have a sealed pack of 2 numbers of batteries as 1 battery.

I know that having a second battery will increase either voltage or capacity, depending on how they are wired. Hooked
up in series will increase the voltage, so if a battery is 12V, then your will have a 24V system or unit. Parallel wiring will increase the capacity and thus run-time.

Now, if the the 2 connected batteries ARE tied together as one unit, and the batteries ARE wired in a "SERIES" circuit, HOW CAN 24 volts ANYWAY improve run-time versus 12 volts? (BECAUSE THAT IS HOW I AM FINDING THEY ARE WIRED -- IN "SERIES"; IT DOESN'T MAKE ANY SENSE.) Can it provide ANY positive effect to run-time? Doesn't it REALLY NEED to be wired in PARALLEL in order to increase run-time?

Please reply.

Thank you!

A:Battery Backup Systems Or UPS - 2 Batteries - In Series Circuit - Bad?


I have come to a conclusion after reading and speaking to people. There is no difference between the different circuit runtimes. I was failing to see that both series and parallel circuits have the runtimes when converting from DC to AC. I was getting hung up on the differences between volts and ampere effect on runtime. However during runtimes, I found that the cells discharge twice as fast alone in a parallel circuit to get the same amount of amps at 120 volt output (required for AC) than a series circuit. However, comparing total runtime to discharge between a parallel and series circut -- they would be the same total runtime.

So there are two factors that I failed to realize: 1. There is an inverse realtionship between amps (flow or volume of current) and volts (pressure or strength of a flow or volume of current). So if I am trying to evaluate one or the other measurements because of this inverse relationship there, there was never any constant for me to do so since they are opposing each other -- so it cannot be done. 2. I was converting from DC to AC current (What happens in a UPS during power loss.) so there was a constant I had to relate to household voltage (120 volts) -- both kinds of circuits have to be in agreement when the constant is nominal house voltage (AC need to power your compoents for power loss. Being that the AC is what is end energy being used (1 amp at 120 volts), both kinds of circuits have to produce the same total power. Either way you w... Read more

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I have recently gotten an X220 and couldn't be much happier with it, especially considering it's a laptop from 2011. However, I purchased a few new batteries with it, an original 6cell one and two 9 cell ones which are not original units, and these wear down extremely fast; about 40% in half a year approximately. I don't keep them charging when fully charged, nor do I run them down to almost 0%, so I am not sure what causes this extremely high wear.  Now I expected the non-original batteries to wear down pretty fast, but not this fast. Could it be that I'm using a 90W adapter? Does this charge on a higher voltage/current which these batteries cannot handle? I've measured the voltage of the adapter, and it runs at 20.5 volts when not connected to the X220, so that seems ok. Any ideas? 

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Hello Everyone, I have recently left my laptop in a car for about 8 hours, when it got to about -30C.I can only turn it on now while plugged in. Lenovo Vantage shows both batteriy condition as poor, with 0Wh remaining capacity. As a result, I cannot use the laptop without a charger, and it powers off after charger is disconnected. I have tried disconnecting them for a few hours, using different chargers, and now trying to use a Battery Gouge Reset which seems to be stuck at 0%. Ironically my warranty expired 20 days ago, so I cannot call it in. I am considering purchasing a new extended battery to compensate for both, but I am worried it will not solve the issue. Any recommendation from Lenovo and the community would be much appreciated. Alex  

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Can someone help me with this problem? So I just received my brand new Dell Inspiron 15 3000 and the battery is not charging. It says it's "Plugged In, Charging" but it never goes up and stays at 0%. At first I thought I just need to plug it in for several hours but it's been 5 hours now and still the battery stays at 0%. I tried running the BIOS Diagnostics just to see if there are problems and there's none. The battery status says everything is running normally and the Battery State says it's Idle. I tried draining the flea power several times, removing and reattaching the battery, but to no avail. I'm getting really frustrated and I'm really close to throwing this laptop back to Dell. 
I read somewhere that I have to update the BIOS but it won't update unless the battery is charged at least 10%. Someone also suggested that Windows 8.1 is causing the problem. I haven't even started using this laptop and it's already giving me a *** ton of problems. Any help would be much appreciated! Thanks guys! :)

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My Dell laptop will charge and operate for several hours off a new 6000 MAh battery but the icon in the tray inidcates that it is always on line power. Although both the CD and floppy drive work when installed in a bay the system not indicate that they are present. I have updated the bios from Dell but that does not help. Any ideas would be appreciated.


A:Dell Inspiron 3500 charges and runs on battery but cannot find battery or bay devices

Still under warranty, isn't it? Call Dell for a repair trip.

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I have a Dell M5510 precision laptop for business.  Around January 2017, 7 months after owning this laptop the track pad started to come loose. At first I didnt know why, it was very minor, then each month it started to come off more and more. Around 2-3 months ago I stopped being able to use some of the functionality of the trackpad. I finally took the laptop apart to find out the battery had expanded and was causing this issue.  I purchased a M5510 with every upgrade (xeon, 4k, larger battery etc) and figured I would not have any issues as I use this for work. Has anyone else had similar issues on the M5510 Precision series?
It looks like the battery is very swollen in multiple cells and the trackpad looks like its about to blow right off the laptop.  
I'm also not sure how safe it is to use this laptop for business travel now that it looks like the cells are expanding and lithium ion explodes.

A:Dell M5510 battery breaking my trackpad and looks like its ready to explode (4gvgh battery)

So first thing is stop using the computer.  If the cells are expanding that could cause a safety issue.  I would call Dell ASAP and have them replace the battery which is obviously defective.

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Hi ! I need help to determine if I just plug in the samsung evo850 drive with oxdygx cable, onto the motherboard, with the UEFI-bios ask me to initialize the evo850 dirve?  If yes, after format the evo850 as GPT, will the bios manage the 512g pcie ssd as C drive (with windows 10 in it) and evo850 as D drive (data disk)?  
Another question is whether hdd password can be managed by the uefi-bio just like the legacy bios?
Also whether a similiar hdd password can be used on 512 pcie ssd?  

A:newly purchase xps15-9550 pcie 512g ssd 84 wh battery - try to add evo 850 on to the hdd slot, take out the 84 wh battery

The initialization takes place under WIndows - NOT in setup.  UEFI will detect the drive, but you must use the disc manager to partition and format it.

Hopefully you realize you'll need to replace that 84 W-H battery with a 56 W-H unit (the drive needs the space occupied by the extra cells in the larger battery).
Your existing C drive will be unaltered - if you have no other drives attached, the new drive should show up as D>
You should be able to set a password on both drives -- that said, they're not of much security (they can be removed and once that's done, the data is open for access).  Effectively if you have a need for security, drive encryption (bitlocker if you have 10 Pro) is a much, much, much better idea.
Also be advised:  the hard drive password ties the drive to the system.  If for some reason the mainboard gets damaged, the data will not be accessible without the intervention of a data recovery/password removal service, so backups - of both drives -- are ESSENTIAL.

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Hi there,

I'm having dell inspiron 3521 laptop. My battery is 4 cell (40WAh) and recently it was permanently failed. So, i decided to replace it with new one. The question is if i replace my 4 cell battery with 6 cell battery, will it leads to any problems? Can some one please help me to resolve this.
Thanks in advance.

A:What will happen when i replace my dell 40WAh battery with 60WAh battery for Inspiron 3521?

As long as the battery is otherwise compatible -- and you realize it will increase the weight AND the size of the notebook (while the 4-cell likely fits entirely inside the system, the 6-cell will protrude from the back of the system), you will be fine.  There's also a big reason (safety among them) why OEM batteries cost more than third-party knockoff units, if that's a consideration.

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Hi there!  Since the battery life of 320S is less than stellar, I tried to find ways of enhancing it beyond the beaten paths. When examining which batteries are compatible to mine, I noticed that besides three two-cell types (7.2V),- 5B10M49825- 5B10M49823- 5B10M49822 (this is the one the laptop came with)three three-cell units (11.4V ) were offered as possible replacements. These are:- 5B10M49826- 5B10M49824- 5B10M49821 My question is:What effect does the change of the battery voltage has on the battery life? Has anybody tried this change and what were the results?I think this strongly depends on how the onboard voltage is generated: A very primitive voltage regulator would simply turn the excess voltage into heat and would have no effect on the battery life.A more sophisticated regulator would detect the incoming voltage and could (the conservation of power applies) turn additional voltage (e.g. 11.4V) into additional current at a lower voltage (e.g. 7.4V), yielding a longer battery life. Can Lenovo say how the onboard voltage regulators will react to an aleviated input voltage ? can the battery life be extended this way?Has anybody already tried this conversion and if so, what was the result? Best regards and thanks in advance,Matthias

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The main problem is that is dangerous and toxic and the battery are indeed defective.
I had other brand of notebook (more than 2) ask me for battery change for free after 5 years from acquiring the pc and completely out of the normal warranty.
Why Dell doesn't mind about their notebook users at all?
Why  they cannot change a battery also if i'm willing to pay some money ( for a service that as been done from other brands and have to be done FOR FREE as it is a product defect )
My notebook status:
The dell post replay is here (Japanese):

A:XPS 13 9350 battery swollen and apparently Dell Japanese support cannot fix it, because have no battery in their inventory

Hi celery,
We are sorry to know our Japanese support couldn't help you.Please help us with the service tag of the system you are facing issue with, and pictures of the swollen battery, if you have any so that we can check and try helping you accordingly.
For me to better assist in troubleshooting, please click my DELL-username and send me a Private Message with the Dell Service Tag number and your email address.

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I've been looking around for a battery extender for an adapter with output 6.7A, 19.5Volts -- 130Watts.
No luck so far, as most of the items I found had max 5A output.
Does anyone know of a solution to carrying extra juice on the go for the inspiron 7559? Any advice would be greatly appreciated.

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Hoping this problem will be noticed by more people, the original post on this issue came from:https://forums.lenovo.com/t5/Linux-Discussion/T470-Linux-Power-Bridge-wrong-discharge-order/td-p/365...https://www.reddit.com/r/thinkpad/comments/63odjr/t470_battery_order_question_internal_discharges/ Brief description: same problem with OS including Win 10, Ubuntu 16.04, Gentoo etc. The internal battery always gets discharged first regardless its remaining power, which is generally harmless but seems not so good for the internal battery life. With my own T470 machine, updated with the latest 1.29 BIOS, this problem remains. According to searching results online, this little bug came with early versions of X's and T' including T460. PS: this issue had been successfully fixed with T460 via BIOS update 1.26, hoping it would be fixed with T470 sooner or later. Best regards. 

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On my NB10t-A-101 the old battery from 2014 got tired and I bought a replacement unit. But with this new battery (and the mains adaptor plugged in) only the left light indicator is flashing red in approx. 5 second intervals, no further action is possible.

When I take the battery out, the machine will boot up happily with only the 19V mains supply. When I then plug in the battery into the live system, the left red light starts flashing ever 5 seconds, the machine will run but not start charging. After shut-down with the new battery in, it will also not boot up again.

My questions: is the battery faulty (brand new, manufactured 2018) or could it be that the system is faulty in the computer itself which activates the battery charging process?

Is there a way to test the battery to see it's ok?

Many thanks in advance for every helpful advice!


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Hi: I bought Yoga C930 on Jan 2019. It showed 12 hours maximum when I first open it. I updated battery firmware last night. After updated, the battery 90% showed 3 hours remaining. What happens with a new firmware? Regards,Dhatchai

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Hello.  I would be grateful if someone can help me with solving the following battery issue.
My XPS13 9343 (with Windows 10, 2015 model) recently stopped charging when connected.  I have conducted BIOS test, stress test, system test, battery test recommended on Dell forum, but could not find any issues.
Then ran device manager and checked & updated drivers, tested for virus, scanned the system, but could not detect any issues.
Lights on AC adopter is on (static) , and the front light under the touch pad turn on white briefly when connected then turn off immediately when plugged in (when disconnected, orange light comes on).
It seems charging is disabled...I might have touched keys without realizing (I checked whether there were hot key to enable/disable charging, but could not find one).
Since it is an ultrabook, and the battery has no issues, I have not opened the back to take out the battery.
I brew into the connecting hole, but it did not solve the issue.
Please help!

A:XPS 9343 (2015) battery not charging - no issues with battery or AC adopter when tested

Dear ejn63,
Thank you very much for the quick reply.
I just did F2 at powerup and found the adapter was displayed as 'Unknown.'
I would order the new AC adapter today and see how it goes.
Will report when solved.
Thank you again.

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Hello, Lenovo Community, I recently tried updating my battery's firmware. It was going smoothly for about one minute until my charger disconnected and my laptop's battery died and will not charge. My charger has a long history of automatically disconnecting (two blinking lights, one white and one orange) so I cannot power my laptop through the charger itself. I really don't want to get the port checked, so I am looking to see if there are any other ideas from the community.  Here is what's happening:-My charger disconnects everytime I try to boot now (used to disconnect before loading Windows 10)-My battery is disconnected from the system (electronically, not physically probably)-I really cannot power on the system.  Thank you, Lenovo Community!

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The laptop just turns off immediatelly. No warning, no blue scrren. Nothing. When I click on the battery icon in the task bar the status is "Battery 1 is 97% and charging. Battery 2 is 100% and not charging".

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As the title says.

My battery is 100% charged, when i disconnect the power lead after 30 seconds or so my laptop powers off.

I bought a new battery today charged it to 100% and it does the same thing
Any ideas please

A:Dell Inspiron 7720 Laptop - Battery 100%, turns off when not plugged in, have tried new battery

harrrrrrry.Cable LooseIf you have a cable that is loose, try removing the cable and reconnecting it and make sure it is firmly in place.If the cable is still loose, check for any bent or broken pins or damage to the connector or cable.If there is damage to the cable that is causing it to become loose, the adapter and or cable will have to be replaced.Check the BatteryRight-click the battery icon in the lower right-hand corner, then click Dell Extended Battery Life Options. If this option is not available, proceed to Step 2. Click the Battery Health tab. Make note of the message on the page, when the battery shows as "This battery is performing normally", then the battery is performing as it should.Make sure your bios is updated. You can also run the diags. click the link below.http://dell.to/2k3NUrHTo run a full diagnostic on your computer, go to the Dell PC Diagnostics page, click the Advanced tab and click Run Diagnostic. Uninstalling & installing the Battery DriverIf the above steps don’t resolve and you might need to uninstall the battery driver, and then restart your computer. Follow these steps:Open Device Manager by clicking the Start button Picture of the Start button, clicking Control Panel, clicking System and Security, and then, under System, clicking Device Manager.‌ If you're prompted for an administrator password or confirmation, type the password or provide confirmation.Double-click Batteries.Right-click Microsoft ACPI-Compliant Con... Read more

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hello, Ive had the yoga 900s for over a year, and in the last few weeks, suddenly my battery is acting out. I can charge to 100% and it works fine until around 20% when it suddenly shuts off with no warning. I concect the charger, and turn it on - the battery gauge always states 0%.  why did this start happening - is ther something I can do, or do I need to get it to a lenovo center? thanks,Nir

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The battery status toggles between not charging, not used, and unauthorized battery after it was calibrated using one key. Before that, the battery was working perfectly, lasting close to 5 hours. Now the laptop shuts off when unplugged and the battery status is constantly changing. I've had this laptop for approximately a year now and it was unused and left in an unopened box for the first 8 months. 

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Hello all today ive just got my new IdeaPad 520 I5 8250U + MX150 + 8GB DDR4 + 1 TB HDD And ive put it windows 10 and started exploring it.The game i have tested till now is Mafia 2 and i  have reached 58 degrees GPU and 69-70 CPU I also used XTU and lowered the voltage with 0.085mv on 0.100mV it crashesh so i left it 0.85mV .But i noticed while i play the fan is barely getting the heat out and wanted to ask how can i increase the fan speed and eventually can i undervolt the mx150    https://forums.lenovo.com/t5/Lenovo-B-and-G-Series-Notebooks/Lenovo-Energy-Management-Where-is-my-Du... WIll this work for me to increase fan speed ? 

A:Improving Lenovo IdeaPad 520 15IKB Battery /drastic battery drain

I am having also one other issue i just chared it to 99% and played 7-8 minutes Mafia 2 at Full HD and low settings and the battery was set to maximum baterry life but it drained to 75% for this 7-8 minutes ? is this normal ? 

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Hi everyone, Title says it all, I know this topic of discharging internal battery first has been brought up a lot, and that the reason behind it is this: The T470s are designed to drain the battery with least wear first so as to degrade both batteries equally and prolong the laptop's overall battery life. However, as I'm using a new 61++ battery, clearly somethig is going wrong somewhere as the year old internal battery cannot be in better condition than the brand new external.https://gyazo.com/6c12f3f40514599d04d852a8589189ab Any ideas? Thanks!

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After a round of Windows updates, I went to turn on my laptop and recieved the "Primary internal battery (601)" error.  After this screen, however, Windows would not load.  I have tried taking the battery out and 'draining the charge',  and starting up the computer plugged directly to AC with no battery.  Windows still does not load.  The start-up test in the diagnostics menu said the battery needed calibration, however when I go to run the battery test, it gets to "waiting for battery to charge" and exits out of the test without giving me any results at all.  Currently when turning on the computer I no longer get the "primary internal battery" error, it just goes directly to a black screen with blinking cursor.  Any help is appreciated, I'm completely at a loss here!

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I have an XPS 9550 6th Gen running Windows 10 (Just over 1 year, out of warranty).
The issue is when the charge plug is plugged in and hovering over the battery icon it says that battery is charging.  However the battery is not charging but discharging until the laptop switches off.  The only way for the battery to charge again is to deplete the battery until the laptop is unresponsive when the power button is pushed to switch lap top on.  Once there is no residual power in the battery it will start charging again to 100% after which the cycle repeats, discharge.
Things I have tried.
Latest Bios update - no change
Another A/C charger - worked ok for a few days
Replaced battery - no change
Bios settings - reset to default (info related to battery and A/C charge reports all good)
F12 - Dell diagnostics, reports all good
When Battery is disconnected the laptop works normally
The laptop charge socket seems tight and secure
I have searched the internet exhaustively but have not found this same issue reported.  The only feasible way I can use the laptop is to disconnect the battery.
Can anyone suggest anything?
I would also like to disable the battery instead of having to open it up to disconnect, is this possible?
Any help would be much appreciated, thanks 

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Hello everyone,
I have been having a problem with my laptop recently. A few weeks ago my laptop turned off, and wouldn't turn back on. I did some googling, and found suggestions to remove the memory, SSD, and CMOS battery, wait, then put them  back in and try again. When I did that, it didn't work the first few power button presses, but then it turned on. It has been consistent like that. I have the battery out, and on AC only, when I remove AC and CMOS battery, then plug the AC back in, the laptop will boot after hitting the power button a few times.

Any suggestions?

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The battery light on my Latitude 7370 started to flash in orange and the laptop is not using the battery. It does not start when the AC is not plugged, and shuts down immediately after the AC is unplugged. However, the Dell online diagnostic test for battery passes it as working OK (the test for motherboards also passes). In BIOS, I can see the battery as 100% charged; however it also says "Health: Communication Error". A week ago the battery still had enough charge for up to 5 hours of office work. I have tried to unplug the battery, start the laptop without it, and then plug the battery back. I have also tried unplugging and plugging back the CMOS battery. Neither of these helped at all. I have been using the laptop with WD15. The behavior persists on 2 different WD15 units as well as on the default AC charger.

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