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4 Posts

08-03-2016

United States of America

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New T460s: battery at 87% maximum life already

2016-08-05, 18:12 PM

I have had my T460s for about a month now. The battery life has been bad, but that's not my issue here.

 

The issue is that one of my batteries is now at 87% maximum capacity:

 

Battery 0: design capacity 1813 mAh, last full capacity 1787 mAh = 98%
Battery 1: design capacity 2032 mAh, last full capacity 1786 mAh = 87%

 

Is this enough to complain to customer service? It actually even went down from 88% since one day ago. :(

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2373 Posts

04-20-2008

United States of America

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Re: New T460s: battery at 87% maximum life already

2016-08-05, 21:11 PM

Where are you getting these readings for the Design Capacity? The battery capacities are:

 

Main: 23.54 Wh

Secondary: 26.33 Wh

 

Those numbers do not change. Have you tried to do a Battery guage reset?


P53 XEON 2276 BIOS 1.28 OLED UHD 4K Multi-touch display, 96GB RAM, RTX5000, RAID 1, 1TB x 2 Samsung PM981, 1TB PM981, WWAN
P70 XEON 1505, BIOS 2.35, 4k Display, 64GB, M3000M NVIDIA GPU, RAID1 1TB Samsung PM981 PCIe-NVMe SSD x 2, 2x Samsung 850 Pro 1TB SSD. EM7455 WWAN
P1. BIOS 1.25,Xeon Processor, 4k UHD IPS multi-touch display, 32GB, PM981 1TB x 2, RAID1

I am not an employee nor an agent of Lenovo.
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16 Posts

12-06-2015

Bulgaria

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Re: New T460s: battery at 87% maximum life already

2016-08-06, 11:56 AM

Actually his numbers are correct (Design Capacity and Current Capacity). They're displayed in different values (mAh vs mWh) and they DO change as the battery wears out. The only ones that DO NOT change are the designed capacity numbers. 
Battery 0 = Main -> Design capacity 23540 mWh ~1810 mAh. Current capacity is 1787 mAh (23231 mWh).
Battery 1 = Secondary -> Design capacity 26330 mWh ~2025 mAh. Current capacity is 1786 mAh (23218 mWh).
Currently his numbers are not good for a month old battery. I don't know what is the OS he is using, because it may be some OS thing (it is strange that both batteries are charged eqaually, this is not common for batteries with different capacities). On the first battery the wear level is ok (I also get different last charge capacities based on how I've charged it - from empty, from 50, from 80%). The second one is not good, and I think it may be something in the operating system that is causing that. I suggest to install Windows 10/8, Lenovo Settings and Lenovo Power Management Driver. Do a battery gauge reset (from Lenovo Settings) and report back.

P.S. I do not know what are the threshold numbers for triggering battery replacement.

T460s - Core i7-6600U, 12GB RAM, 512GB SATA 6G SSD, FHD, EM7455 WWAN
T440s - Core i7-4600U, 12GB RAM, Crucial MX200 500GB SSD, FHD, WWAN

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1464 Posts

06-08-2013

Spain

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Re: New T460s: battery at 87% maximum life already

2016-08-06, 12:32 PM
Can you send me in a private message your model number of the machine and the serial number? (Do not post them in public)

I will check the parts that were used in your machine and see if I can find a resolution for your problem.

Kind regards,

Jonas Hendrickx

Lenovo Insider, Windows Insider MVP

 

Using Browser Search to find your answers in Lenovo and Moto Community

Looking to buy a Lenovo machine? Find your country

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2373 Posts

04-20-2008

United States of America

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  • Message 5 of 12

Re: New T460s: battery at 87% maximum life already

2016-08-06, 13:14 PM

On my T460s (configuration in my signature below) first use was 4/27/16

 

Battery 1 is Li-Polymer (it is the first battery to be discharged and the last to be recharged)

Cycles = 34 , Mfg = SMP, Designed Capacity = 23.54 Wh, Full-charge capacity = 23.23 Wh (98.6%)

 

Battery 2 is Li-ion, Cycles = 35, MFG = Sanyo, Designed Capacity = 26.33 Wh, Full-charge capacity = 24.84 Wh (94.3%)

 

Battery 1 is discharged to 5% remaining before Battery 2 is utilized. Both are internal in the system

 

Capacity and runtime are about what I would expect (about 8+ hours) with how I use my system and its configuration, but certainly not 10 hours.

 

As a comparison with my P70:

 

Designed capacity = 96 Wh, Cycles = 7, Mfg = SMP, Full-charge capacity = 92.7 Wh (96.5%)


P53 XEON 2276 BIOS 1.28 OLED UHD 4K Multi-touch display, 96GB RAM, RTX5000, RAID 1, 1TB x 2 Samsung PM981, 1TB PM981, WWAN
P70 XEON 1505, BIOS 2.35, 4k Display, 64GB, M3000M NVIDIA GPU, RAID1 1TB Samsung PM981 PCIe-NVMe SSD x 2, 2x Samsung 850 Pro 1TB SSD. EM7455 WWAN
P1. BIOS 1.25,Xeon Processor, 4k UHD IPS multi-touch display, 32GB, PM981 1TB x 2, RAID1

I am not an employee nor an agent of Lenovo.
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4 Posts

08-03-2016

United States of America

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  • Message 6 of 12

Re: New T460s: battery at 87% maximum life already

2016-08-06, 16:56 PM

I'm running Linux on my machine so unfortunately no Windows-based solutions will work. The output was from ACPI.

 

I've never had more than 5 hours usage on the battery and that's with making an effort to extend it as long as possible. 50% screen light and just typing/browsing/light photo editing. If I got 8 hours I would be absolutely ecstatic with this machine, it's the biggest sore point for me.

 

The bad battery has only been fully discharged maybe twice, so there's no reason why the life should be so low.

 

Specs are: T460s, BIOS 1.14, WQHD display, 20GB RAM, I5-6200U, Samsung Evo 500GB m2 SSD.

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1464 Posts

06-08-2013

Spain

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  • Message 7 of 12

Re: New T460s: battery at 87% maximum life already

2016-08-06, 17:40 PM
The T460s uses FRU numbers 00HW024 and 00HW025 for the internal batteries.

I highly recommend you contact technical support and have the battery replaced.

Kind regards,

Jonas Hendrickx

Lenovo Insider, Windows Insider MVP

 

Using Browser Search to find your answers in Lenovo and Moto Community

Looking to buy a Lenovo machine? Find your country

Belgium | Canada | Finland | France | Germany | Netherlands | Sweden | U.K. | U.S.A.

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2373 Posts

04-20-2008

United States of America

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  • Message 8 of 12

Re: New T460s: battery at 87% maximum life already

2016-08-08, 2:33 AM

I've been running with the Windows 10 Anniversary Update (1607) for a couple of days now. It would appear that the new software has decreased the CPU usage for the OS since my runtimes have increased from around 7+ hours to a bit over 8 hours. The average wattage being consumed is around 5.7 Wh which calculates roughly to 8.5 hours of runtime.

 

YMMV


P53 XEON 2276 BIOS 1.28 OLED UHD 4K Multi-touch display, 96GB RAM, RTX5000, RAID 1, 1TB x 2 Samsung PM981, 1TB PM981, WWAN
P70 XEON 1505, BIOS 2.35, 4k Display, 64GB, M3000M NVIDIA GPU, RAID1 1TB Samsung PM981 PCIe-NVMe SSD x 2, 2x Samsung 850 Pro 1TB SSD. EM7455 WWAN
P1. BIOS 1.25,Xeon Processor, 4k UHD IPS multi-touch display, 32GB, PM981 1TB x 2, RAID1

I am not an employee nor an agent of Lenovo.
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1464 Posts

06-08-2013

Spain

2008 Signins

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  • Message 9 of 12

Re: New T460s: battery at 87% maximum life already

2016-08-08, 12:39 PM

Can you also try the following?

  1. Download 'Lenovo Settings' from the Windows Store if you don't have it already.
  2. Start 'Lenovo Settings'.
  3. If it prompts you to install the 'Lenovo Settings Dependency', download and install it and reboot your computer. Then open Lenovo Settings after your computer has restarted.
  4. Click the battery icon in the menu on the left. (3rd entry)
  5. Scroll all the way to the bottom till you see 'Battery Gauge Reset', and run it for each battery. First do one battery and then after that one has completed do the other. 

Note:

While calibrating the battery or running the battery gauge reset, prevent your computer from going into sleep mode, do not disconnect the AC adapter and do not remove the battery.

 

I just tested this on my ThinkPad T560 which had 14% of wear after just 3 months, and this helped me.

 

In case it does not work for you, battery warranty is limited, so in that case contact Lenovo ASAP.

Kind regards,

Jonas Hendrickx

Lenovo Insider, Windows Insider MVP

 

Using Browser Search to find your answers in Lenovo and Moto Community

Looking to buy a Lenovo machine? Find your country

Belgium | Canada | Finland | France | Germany | Netherlands | Sweden | U.K. | U.S.A.

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2373 Posts

04-20-2008

United States of America

19493 Signins

110796 Page Views

  • Posts: 2373
  • Registered: ‎04-20-2008
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  • Views: 110796
  • Message 10 of 12

Re: New T460s: battery at 87% maximum life already

2016-08-08, 12:54 PM

It used to be that the capacity of a Li-ion battery would become approximately 70% of its original capacity after one year of usage. What the capacity tools are reporting is a combination of TIME-BASED and RECHARGE-CYCLES ASSUMPTIONS of where your battery is falling on the predicted curve. Resetting the battery gauge recalibrates the metering to what is actually present. What will happen is that the tool will first charge the battery to 100%, then discharges the battery while it is still plugged into external power, then once the battery reaches full discharge it recharges the battery back to 100%. The entire process will take a very long time so be prepared to keep the system connected to the power supply for the duration.


P53 XEON 2276 BIOS 1.28 OLED UHD 4K Multi-touch display, 96GB RAM, RTX5000, RAID 1, 1TB x 2 Samsung PM981, 1TB PM981, WWAN
P70 XEON 1505, BIOS 2.35, 4k Display, 64GB, M3000M NVIDIA GPU, RAID1 1TB Samsung PM981 PCIe-NVMe SSD x 2, 2x Samsung 850 Pro 1TB SSD. EM7455 WWAN
P1. BIOS 1.25,Xeon Processor, 4k UHD IPS multi-touch display, 32GB, PM981 1TB x 2, RAID1

I am not an employee nor an agent of Lenovo.
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