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T470 power bridge wired battery discharging order, always internal battery first

Q: T470 power bridge wired battery discharging order, always internal battery first

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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RELEVANCY SCORE 200
Preferred Solution: T470 power bridge wired battery discharging order, always internal battery first

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RELEVANCY SCORE 112.8

Hello, When on battery power, my X260's internal battery is discharging before the external battery. I am using Windows 10 Home and bios is 1.19 (what it came shipped with). I haven't found any definite solution to this problem--only comments from others where the problem went away eventually. I've had the computer for 10 days and have tried many suggestions but nothing is working--the internal battery continues to drain first before the external one. I'm hesitant to call or get support because I don't want to send the computer in or have a tech rip the computer apart for what is apparently a software/firmware issue. Just to add: all drivers are updated and battery performance is perfectly normal--I get the expected run times. It's just the internal battery is draining first and then the external one second. I would appreciate any other suggestions or a fix. Thanks

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RELEVANCY SCORE 103.2

Hello, i've just recived a Thinkpad T470 and Windows dosen't recognize the internal battery. Everything was updated, especially the BIOS and the power manager. I even tried to disable the internal battery in the BIOS but it hasn't solved the issue. What should i do ? Thank you

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RELEVANCY SCORE 102

Hello!I have a Thinkpad T470 that came originally without the internal battery, having in its place a dummy. So my computer used to show only one battery (the external one).I recently decided to install an internal battery as well. The problem is that my laptop doesn't seem to recognise it completely: it shows two batteries, but the internal one is "unrecognized" and always showing 0% charge, both under Windows and Debian. Nonetheless, it works: I tried booting up the laptop after unplugging it and removing the external battery, and everything went just fine. Bios and every other Lenovo-related software is up to date. Has somebody else experienced the same problem? Do you have any idea as to what may be causing this? 

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RELEVANCY SCORE 100.8

Hi all,

My Toshiba Satellite A30-871 notebook has started discharging the battery whilst the mains power supply is connected (The LED shows that AC is connected but Laptop consumes battery power instead of charging battery and using AC power). When the battery reaches 0% laptop will switch off. Removing the power plug and reconnecting does not solve the problem while the computer is ON, only shutting down computer starts the battery to charge. Which means that I can use laptop as long as battery retains some power. Sometimes when the notebook is off and battery is being charged, battery charging LED starts to blink and I have to remove the power jack and plug it back.

I don''t think its a loose power connector because the light shows the power is connected.

I wonder if anyone got a solution for me.

Regards,
nova
 

A:Toshiba Satellite A30 - Battery starts discharging if power supply is connected

Anyone around to help me out?
 

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RELEVANCY SCORE 91.2

My new X260 uses the internal battery before the external, hot-swappable battery. How can I change this? I'm on the newest BIOS (1.19?) and Ubuntu Xenial.

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RELEVANCY SCORE 90

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.
 
Xen

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RELEVANCY SCORE 87.6

I just bought this brand new laptop. I noticed that the battery abnormally discharges at a huge rate. For example if I charged the battery to 100% then shut down windows, and turned the laptop back on a few hours later I would notice that the battery is at 72%. What the hell? I paid almost $1700 for this laptop to experience this huge set back.

A:Battery Discharging while Completly Off

Hi, Do you have anything connect to it using USB port(s) ? Regards.

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RELEVANCY SCORE 87.6

Hi, I have a Y50-70 which has a strange problem with the battery: even when entirely switched off (not in sleep or hibernate, but shut down), it loses about 10% per 24 hours on the battery life, until going down to 0%. But the battery capacity seems good - it is reporting about 53 watt hours, when it was only ~55 when it came out of the factory. I'm running Windows 10. Does anybody know what the problem might be? Thanks in advance.

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RELEVANCY SCORE 87.6

hii good evening..i have purchased the hp laptop(HP 15 ab125AX) in the month of april/2016.after two months i have faced the problem with battery draining.It charges fully within 1hour and dicharges before one hour only.so i want to know what was the problem behind this issue.please reply me soon..

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RELEVANCY SCORE 87.6

Hello, I've recently changed my laptop's battery as the previous one had stopped working due to overcharging because I thought that when the laptop battery gets fully charged then the laptop will run on external power but I found my thinking wrong when the battery stopped working. I changed it for Rs. 6000/- at HP Official Service Centre Chandigarh 5-6 moths ago. But now my present battery is also discharging fast & I've not overcharged my present battery a single time. Please help me with this battery problem. 

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RELEVANCY SCORE 86.8

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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RELEVANCY SCORE 86.8

This is an IBM Thinkpad I1400 series. The battery would not charge so I replaced it with a new one. It now charges but here are some observations that are suspect to me. Once the battery has been charged to !00% according the Power Meter, I shut down the system, disconnected the A/C power and looked at the Power Meter again. It registers about 98%. Within a 2 or 3 minutes, I shut it down again. After about 2 days, I again power up the system on battery only, check the Power Meter and it registers only 65%. Shouldn't these batteries hold their charge for much longer than this when not in use for just 2 days? Is there something else going on that might be discharging the battery? Any suggestions would be appreciated.
 

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RELEVANCY SCORE 86.8

hi,need advice how to charge/discharge battery correctly.. 
should i discharge do the end before charging and after fill up to 100% or less ?

A:xps 15 9560 battery charging / discharging

Hi Nebi7,Thanks for posting.Here is some information about Dell batteries you may find helpful: http://dell.to/2tIOA7e

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RELEVANCY SCORE 86.8

I bought this notebook two weeks ago, and when the battery is discharged I don't receive any notification. I checked the settings about notifications and they seem good, I have the same setting on another Satellite and I have no problem with it. I set battery critical level at 10% I've checked the battery level on the icon in the taskbar and it was 25%, after a minute the Notebook hibernates because of battery discharged. What's wrong? Maybe the battery is damaged? Or maybe I need a new driver?

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RELEVANCY SCORE 86.8

My new and virtually unsused laptop is discharging its battery at the rate of 10% in 48 hours when switched off and not in hibernation mode. When removing the battery it is loosing 2% in 48 hours.

I have fully charged the battery to 100% and shut down whilst still on charge.

There is no doubt in my mind that the battery is discharging when fitted, and only loosing a small amount of charge when removed from the laptop.

Have any other users experienced the same problem. Result is that in one week the battery will discharge some 35%, which I find unacceptable.

A:Satellite L500 19X Battery discharging when not in use

Hi

I think this is nothing wrong buddy
The battery will always s discharge a little bit even though the notebook is not running.

Take a look into the user manual.
I did it and found this:

When you turn off your computer with fully charged batteries, the batteries retain data for the following approximate time periods;

Battery pack 12 cell; 2 days (sleep mode); 20 days (Shut down mode)
Battery pack 6 cell; 1 day (sleep mode); 10 days (shut down mode)
Battery pack 3 cell; 0,5 days (sleep mode); 5 days (shut down mode)

You must always check following software/ bios settings in order to decreased the battery discharging:
- standby/ resume mode, hibernation etc. will reduce the time until the battery is empty dramatically
- always check wether Wake On Lan or Wake on HDMI is enabled
- always check wether USB sleep and charge is enabled

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RELEVANCY SCORE 86.4

Please reply to this post if you are experiencing the following discharging problem, or would have a perfect solution to it. Many thanks in advance  When on battery, the Internal Battery discharges First, then, the External Battery. I got the machine around a week ago, and my internal battery has already gone through 8 cycles (when reviewed through the Thinkpad Vantage App). Yet, the external batter has only gone through 1 cycle. Given the ease of replacing the external battery, and that Thinkpad advertised a "hot swap" battery bridge feature, I do not find a rational for the current discharging behavior. There is a relevant posts on Reddit, but draining both of my batteries does not get things back to normal.External link: https://www.reddit.com/r/thinkpad/comments/83vqj5/t480_internal_battery_draining_first/

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RELEVANCY SCORE 86

Hi all,

I have an Inspiron 1525 that is one year old. Recently the battery will be completely dead when I try to turn on the laptop and will not power on unless I plug it in. The battery meter will be at 0% when it starts up, but recharges normally when plugged in. When I unplug the laptop and close the lid (which puts it into sleep mode) the battery will be completely dead by the next morning even if it was at 100% before I closed it. I don't know why the battery is discharging completely so quickly when the computer isn't even running.

Could this just be a problem with my battery? Or is the laptop not actually sleeping when I close it, but continually using up battery power? Any help would be much appreciated.

Thanks
 

A:Laptop battery discharging when in sleep mode

Note there's a difference between "Sleep" vs. "Hibernation"
> Sleep mode still requires power (It should be minimal power but definitely still draws some power)
> Hibernation requires zero power

That said, i still wouldn't expect a good battery to discharge overnight on sleep mode so you probably still have an issue with your battery holding a charge
 

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RELEVANCY SCORE 85.6

I finally upgraded from the X201 to X270. This is a refurbished mahcine from lenovo. My internal battery discharges very fast. I ran through the utilities. I was on for 2.5 hours surfing with Google Chrome and only had 20% left. Is this normal? If not, I will need to buy an extended battery. My X201 lifespan is much better.

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RELEVANCY SCORE 84.8

Hello everyone, I have an Ideapad S510p touch Notebook that i bought just last year.But now since the past 1 or 2 weeks i have noticed that my laptop's battery is getting discharged really fast.Could someone please help me with this. Thanks a lot











Solved!
Go to Solution.

A:Ideapad S510p touch - Battery discharging too fast

hi Bhan168,
 
Welcome to the Lenovo Forums.
 
To check the battery, can you try and run following:
1. Download and install BatteryCare and post the detailed info on the battery.
   - Sample info
 
2. Open an elevated Command Prompt (press the Windows key? +X and choose Command Prompt (Admin))
   - on the command prompt box, type powercfg -energy
   - once It generates the energy-report.html file, move this to your desktop and double click it. It will help if you can post a screenshot of the report or upload it (eg. Dropbox) so we can check if there's an app or a driver running on the background that's eating up power and making the battery drain much faster.
 
Similar thread:
http://forums.lenovo.com/t5/IdeaPad-Y-U-V-Z-and-P-series/Z580-Fast-Battery-Drain/m-p/1181989/highlig...
 
 
Let me know how it goes.
 
Regards

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RELEVANCY SCORE 84.8

Battery last about 1,5-2h , discharge rate is about 11mW - 15mWIts normal ? Notebook is 7 months old..

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RELEVANCY SCORE 84.8

Recently, my Spectre X360 seemed to be completely flat every time I went to use it. This is despite being turned off (not in sleep mode or any other lazy-shutdown mode). I've had this lappy for probably two years now, but use it only occasionaly, like say, once every two months. With that infrequent use, I do expect some discharge over that time and it usually had some charge left in it as far back as I can remember. Nevertheless, of late, I've been using the lappy a bit more frequently and have noticed it was completely flat after leaving it for just a week or less. So I searched for an answer on this forum and found a couple of threads that went on for pages with "me too" posts and useless cut-and-paste answers from techs (mostly offering software "solutions") which I knew were not relevant. Eventually I found a couple of clues burried deep in the threads that made sense.  They were the 5v USB charging while turned off along with having any USB devices left attached (someone mentioned mouse dongles). Immediatly, I realised that my recently purchased 128Gb Sandisk nub drive, which I have left attached, may have been a contributor. Subsequently, I;1. Now remove the nub drive when the machine is not in use (despit it being designed to be left in all the time).2. Ensured I had the latest BIOS (F.43) - The other threads talk about an F.10 BIOS version. Whatever.3. Disabled the power to the USB ports when the lappy is switched off by setting it in th... Read more

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RELEVANCY SCORE 84.8

Initially my device was working just fine. Of late though (I don't know exactly when) I've noticed that only the internal battery discharges - then takes me to low power, plug in your charger, without discharging the external battery. I've installed all the latest updates for drivers and BIOS. With the laptop plugged in, the external battery is charging. But when I disconnect the AC it tells me the internal battery is 'in use' and gives me an estimated battery life based only on the single internal battery.  

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RELEVANCY SCORE 84.8

Hi all, I have purchased T440 a month ago, I have no external battery, the laptop use to start normal booting windows 10 pro using the power adapter, it also works well using the internal battery but yesterday when I connected the power adapter it did not start, so IA had to reset it then tried it without adapter and is working well but as soon as I insert the adapter it stops work, also it does not charge the internal battery. Every time I connect the adapter it stop working and I need to reset it . I have checked the power adapter, it reads 20V d.c which is normal, I also tried another adapter kown good but the fault the same. Any help is much appreciated.

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RELEVANCY SCORE 84

Dears,  I'm facing this issue in my Thinkpad X240 "Battery #1 not present", I've tried many solutions like BIOS/Power manager/Battery device manager update ... but nothing works out. At the power manager interface, I can recognize just the removable battery.Do you have please any suggestions to activate my internal battery ?  Thank you.

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RELEVANCY SCORE 84

Hi, I'm using Windows 10 and I did perform Battery gauge reset from "Lenovo Companion" app. but after it discharged to 0%, it didn't charge up even it said "Plugged in, charging". It stuck at this 0% for a long time. What should I do ? Please help. PS. My battery is about 3 years old. Thank in advance. 

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RELEVANCY SCORE 82.8

I have a strange issue. I have a Lenovo T60 laptop and I am experiencing problems with the power management/power guage.

It will often show the battery not installed (power gauge is a greyish-white color with dashed lines) or it shows a red X. It does not matter if I am on AC power or on Battery power, it will show the full range of power, battery level, not installed, or an error.

I have searched Lenovo's site and I seem to remember seeing an FAQ about this, but now that I need it, I cannot find it.

What can I check or do to stop this? While it is annoying, I am not sure if I am having a battery problem or not. I did check my battery on Lenovo's site to see if it was recalled and it is not.

I do appreciate any help that any one can give me.

Thanks!
 

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RELEVANCY SCORE 81.6

Received a new T470 a couple of weeks ago, but having issues when running off battery (internal + 3 cell): 1. Power Bridge failure: sometimes if I unplug machine and run off batteries, then remove the external battery, the machine shuts off immediately rather than switching to the internal battery. This occurs 1/2 or 1/3 of the time. 2. When booting machine (if machine is unplugged, running on battery): sometimes it hangs indefinitely at Lenovo splash screen (i.e. with endlessly spinning icon). Only way out is to reset machine by punching reset button on the back. (Note: #2 occurs always after #1 occurs, and 1/2 or 1/3 of the time on a regular reboot). 3. However: boot hang never occurs if booting while machine is plugged in OR if external battery is removed (i.e. running with the internal battery only). Boot hang only occurs if booting off batteries and external battery is installed. I called Tech Support, they sent a new internal battery, but that makes no difference. They also said it might be a faulty system board, but I ran full Lenovo HW diagnostics and all tests passed successfully including mother board test. Also tried a complete factory reset (Windows 10 x64), loaded all latest updates & drivers incl. latet BIOS (1.30), which I reset to default values (F9). Problem still persists. Anybody else experiencing these issues?

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RELEVANCY SCORE 80.4

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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RELEVANCY SCORE 80.4

This started a few day ago and so far as per now i charge it almost every after 2hours but with 45% still remaining on battery.

A:My dell latitude battery shuts down at 45% of battery power remaining and on plugging it into ac, it starts from that same % so am not sure of what is happening to it.

Hi,
Thank you for writing to us!
Kindly boot the system into BIOS and check the battery health and Ac Adapter.
Also private message the service tag and email address.
Thanks
Robin

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RELEVANCY SCORE 80

The battery light is blinking white. It says that the power source is plugged in, but the battery is not charging. I've run a battery test and it came back as passed/ok. Any help is greatly appreciated.

A:Battery Light Blinking - Power Source Plugged In, Battery No...

As we have properly undertsood your issue you are facing issue in battery issues: Please read this information if you can : Common causes of the error plugged in not charging can be because of the following: Faulty charger. Some chargers supply power to charge the batteryseperately for the power to run the laptop. Nitin singh guleria  

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RELEVANCY SCORE 80

So, I had opened months ago a thread here about the short battery time with the T470P. I got my hands on the biggest available battery (72Wh), but still manage, even after a gauge reset, to get around 5h battery time, only using Firefox, and minimal Words/PDF. All on POWER saving mode. What's going wrong with the T470P that it wont even reach half of its promised 12h battery time? (I know those are Airplane mode numbers, but 5h is a joke compared to those)

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RELEVANCY SCORE 79.2

Recently I noticed that the amber LED on my HP Probook 650 G1 flashing constantly, even when the laptop is powered off.   The System Tray battery indication is 100%, fully charged, when on AC power and 100% on battery power shortly after undocking.    I find the Probook won't power up if AC power is not available (no response when pressing power button) but remains powered when I remove it from the docking station.    Have the electronics that control this LED flashing and power up when not on AC gone bad?    Is this an indication of other failure? thanks

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RELEVANCY SCORE 79.2

Hi, my girlfriend in Beijing has an Acer Aspire S3 latop. She bought a new battery for it a while back and told me it was no good. I was in Beijing recently messing around with it and found that actually the battery is fine (lasts for >4 hours) but when unplugged and running on battery power, the laptop often just cuts out suddenly (loss of power). I took the battery out and had a look and cleaned all the connections but they seem fine.

The next part is the strange part and which I hope might give someone a clue as to what's going on...

When it cuts out, it will never restart again unless the mains power cable is plugged back into the laptop. As soon as that's done and the power button is pressed, it starts up again and the cable can be taken out immediately (I mean immediately - you can plug the cable in, push the "power on" button and pull the cable back out in less than a second) and it will start up and run fine on battery again... until the next time it suddenly cuts out without warning.

Because any unsaved data is lost and because the laptop cannot restart without the power adaptor, this very portable and light laptop is now reduced to having to be kept at home all the time and plugged in, which is exactly the opposite of what she bought it for.

Anybody have any idea what the problem could be or suggest some tests that could be done to find out? She took it to a local computer shop but the guys there had no idea.

Thanks in advance for any adv... Read more

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RELEVANCY SCORE 79.2

I have just purchased an x1 carbon i7 5th Generation. I am experiencing a strange issue.Laptop will not switch on if on Battery although the battery is 100% charged. You need to plug the power on and then the power button will respond. You can remove then the power source (USB C) and the laptop responds fine to restarts etc on Battery and can start up again. As long as you leave the laptop for more than 10 mins powered off (not plugged in) then the power button will not respond again.Tried holding the power button in for hard reset or pressing the reset button under the laptop with no Luck. The only way to get the laptop back to life is to connect it to the power adapter and then Power Button will respond fine and you can work on battery. I have done all the latest updates, bios, drivers etc... but still no luck. Since the laptop is only 1 day old... unless a solution from this group I will be returning it to the supplier on Monday Morning. Thanks 

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RELEVANCY SCORE 79.2

This problem occurred with prior Win 7 Home O/S, so I upgraded to Windows 10. Heavens-to-Mergatroid!  This laptop runs just fine when only battery is powering it.  However, once I also plug in the power cord, the O/S does a hard crash within 1 to 3 minutes. How special! I can get about 2.5 to 3 hours when using the battery, but not if I also plug in the power cord.  That means that when the battery gets low I must perform a standard shutdown and then insert the power cord which recharges the battery if I don't turn  on computer.  If I then start the computer with both connected, it crashes.  I am not patient enough to live with a computer that has to be recharged every couple of hours.  HELP! I suspected a heating issue, so I took the back panels off and thoroghly cleaned the fan vents and other cracks and crevices using canned air, but this did not fix the problem.  Since in runs just fine on the battery, I deduce it is NOT a heating issue, neither dust or heat paste issues.  (I also used a cooling mat to no avail) Im 70 years old living in God's waiting room, but parts of my body are 18 to 30.  However, I do have "Essential Tremors" in both hands so I cannot do a full laptop disassembly even if I want to, which I don't.  I cannot afford to pay a computer repair shop $100 or more to try a fix this vexing power issue.  Other than hocking my car (it's too old also) to buy a new laptop, does an... Read more

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RELEVANCY SCORE 79.2

Over the last few months I noticed that the battery meter on my Dell Inspiron E1505 laptop was blinking red to green and back... so having had this laptop for several years, I assumed that I would need a new battery soon. The adapter power cord was also beginning to lose some of its covering near the plug in site so I ordered both a new battery and power cord. (That was about 2 weeks ago).

Upon receiving my order, I was very pleased to see that when I installed the new battery and new cord, the battery already had some charge (I didn't note how much). I felt relieved to have my mind at ease that all was now well with my computer. (little did I know that I'd be needing help less than two weeks later!).

Important note... I very rarely use my laptop without the power cord... (past experience proved to be frustrating because I always needed more time than the battery provided.)

I've probably only used the laptop "on battery"... a few dozen times over the last 3 years!

Now... I am in a dilemma!

Yesterday, I took the laptop with me out of town when my husband and I did some real estate hunting.
Instead of using the laptop on battery... we had it plugged into a special power converter for use in the car. I noticed that whenever we stopped and turned off the ignition... the laptop would lose it's power immediately, and as we resumed our travel... I'd have to restart the computer... and there would be the "black & white" warning... Read more

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RELEVANCY SCORE 79.2

Hi,

Vista is retrieving me the error message that it is not able to retrieve the power parameters.
Do i need to install a softawre to allow me to access those parameters ?

Thanks for you feedback,

Rgds,

F,

A:Battery - Vista is not able the retrieve the power options for the battery

Hi

To be honest I have no idea what you are talking about.
The Vista power options are a part of the Vista OS and you don?t need to install anything.

But on Toshiba notebook the Vista power option would be extended by some Toshiba power options.
Are you speaking about this Power Saver options?
If yes, then I would recommend reinstalling the VAP (value added package) because these power options are a part of VAP.

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RELEVANCY SCORE 78

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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RELEVANCY SCORE 78

I received T470 laptop on 10-jan-2018 & started using it normally since wednesday 17-jan. The OS is win10. Below are the observation w.r.t the Battery which looks pretty horrible for a new laptop. Battery is 24+24W 3 cell. Charging cycle takes 4~6hOn charge the , i can work for no more than 2h 20m max. I use outlook, notepad++ jabber & chrome with max 4 open tabs. Another colleague of mine received the very same model on same day. His observation is charging 10~100% in 1h max & hold time of 6~8h.  I am confused why the difference in my laptop that too barely a week old. Please advise. Actions performed:Battery Gauge reset via Lenovo Vantage (18-jan 20:55h to 19-Jan 10:13h).  

A:T470 (1wk old) - Bad battery performance

Screen shot form lenovo vantagepowercfg /battery report 


























Battery report.pdf ?148 KB

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RELEVANCY SCORE 78

Hi, after about 4 months of using my T470 I'm pretty satisfied overall, however, I was not even nearly reaching the advertised 18 hours of battery life. As advertised battery life is always tested in "optimal conditions" I'm not expecting 18 hours of battery life. However, I would expect about 60%, which amounts to about 10-11 hours. Even while in the Windows Battery Saver mode, the screen dimmed to 25% and doing normal office applications I hardly reach 7 hours, which is not enough to bring me through the longer days at university. That's why I decided to have a closer look at it. After downloading some Freeware I discovered that the "full" charge on my internal battery (Supplier: LGC; 01AV489) barely reaches 17500 mWh instead of the intended 24000 mWh. That's a degradation of about 25% after 4 months of usage and 28 recharge cycles. My external battery (Supplier: Celxpert; 01AV424) reaches 22000 mWh of the designed 24000 mWh. That's about 10% degradation after 4 months and 65 recharge cycles. Not amazing but I can live with that. Now my question: Is this kind of battery life for the internal battery to be expected or did I get a faulty unit? Should submit a warranty request? Thanks for any info. Nicolai

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RELEVANCY SCORE 78

i got my T470 few weeks agoevery thing works just finebut i found a problem The internal battery discharge before the external battery so what's the point with hot swap? i won't be able to swap the battery without take the risk of shutting down, because of external battery don't work unless the internal battery down to 5% is there any solution to fix the problem?1:like making the external battery discharge firstor2:discharging alternately between both internal and external battery every 5% I did some research onlineKnowing that is not as easy as typing some code in the shell or some settings I can find in the systemBattery runs even before the operating systemIt probably need a BIOS update to fix thatReally wise that my message could go to the engineerSo they can start trying to solve this

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RELEVANCY SCORE 78

I have a T460s with 2 batteries per the attached status.  Battery 2 is discharged first, then battery 1. Issue: When battery 2 depletes, instead of switching over to battery 1, the laptop powers off without warning.  Just... POOF.  I have updated BIOS and am running Windows 10 Pro. BIOS is at N1CET58W 1.26 I have Lenovo Vantage loaded, but when I run it to check for updates, none of the 'System Update' buttons results in any action being taken.   I have done some searching but have not found any information on why the switchover from Battery 2 to Battery 1 would cause an instant power off. 


























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RELEVANCY SCORE 77.2

The laptop is allways fully draining the internal battery. After the internal battery is almost completely discharged (5%), the laptop starts using the external battery. After half a year the condition of the internal battery turned very poor (<50% capacity), while the capacity of the external battery is still around 100%.  Is this behavior intended? Why am i forced to replace the internal battery, while the external battery is still in an excellent condition?

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RELEVANCY SCORE 77.2

The laptop is allways fully draining the internal battery. After the internal battery is almost completely discharged (5%), the laptop starts using the external battery. After half a year the condition of the internal battery turned very poor (<50% capacity), while the capacity of the external battery is still around 100%.  Is this behavior intended? Why am i forced to replace the internal battery, while the external battery is still in an excellent condition?

A:T470: Disapointing Battery Performance

@MichaelNarodovi>After half a year the condition of the internal battery turned very poor (<50% capacity)No offence meant, but I find this story pretty hard to believe.1. A 50-percent battery degradation within less than a year is definitely NOT normal. And the battery should be deemed defective.https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/T470s-battery-discharge-priority/m-p/380...2. For all I know, in the case of two-battery ThinkPads, they start dicharging from the battery wit LESS wear.3. A couple of screenshots from LenovoVantage tool showing the state of your batteries would be appropriate.

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