Hi, everyone.
I just bought a used T61 with a 9 cell battery. The battery only charged 9 times where appears in power manager.
When I bought it, the former owner said this battery will last to above 7-8 hours, and I believe it since when I saw it at the first time, the icon show 3:30 hours in around 50%.
But, since I updated something to my system, either up to vista or utilities for T61 itself, the battery only can last less than 3 hours. I always saw 2:30 in 100%. I recharged it either shut down or during using my laptop. I mean, I try to figure out whether the operation system or the battery causes this problem. But I got the same result. It never regains its capacity.
I did some researches. I realized that not only I experienced this problem, yet not one found out the solution.
Before I reinstall my operation system or find another friend who use T61 and I can continue my experiments. I just want to see does anyone have the same problem with their 9 Cell battery?
I appreciate any information for it.
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- Open Power Manager.
- Switch to advanced view.
- Click the battery Tab
- Post These numbers:
- Full Charge Capacity
- Wattage (must be unplugged; post idle and load if possible)
- Cycle Count
- First Used Date
- Design Capacity
If full charge capacity is substantially below design capacity, you will need a new battery. If wattage is high (above 12 watts at idle) then something is wrong with your OS and you need a reinstall. -
Thank you for your response.
Since I can't attach picture in here. I ganna copy it.
Remaining precentage 99%
Remaining time 2:45
Remaining capacity 84.53 Wh
Full charge capacity 85.75 Wh
Cycle count 10
Manufacture SANYO
Manufacture date 2009-03-07
First used date 2009-03
SerialNumber 19945
Bar-Code number 1ZFBH937FE1
FRU part number 42T4644
Design capacity 84.24 Wh
Design voltage 10.80V
that's it.
so, it's a new battery. Shall I reinstall my OS?
But when I turn off my laptop and charge it, it still can't get a right energy. -
Maybe there's a problem with the thinkpad software.
Try battery bar. http://osirisdevelopment.com/BatteryBar/index.html. Post back the power usage. -
To get the most battery life, you have to use Maximum Battery Life or Power Saver settings. Then you have to lower the display brightness.
On a T61 with 9 cell, you can get a little over 5 hours with low power consumption settings. -
Thanks for everyone!
I tried several mathods, no one works.
The last effort is that I update the BIOS of my T61. The system now can identify more information with my battery; such as Lenovo battery, etc.
But I still just get less than 4 hours battery lasting.
I suspend this private war with my NEW battery.
Thanks guys! -
I'm not sure why your war was private. I had a t61p the was fully packed with the T9800 processor on it and it indicated that 1/2 of the nine cell battery was gone in two hours. I never took it all the way to a zero.
Renee -
See my sig for specs on my T61p, but I have never ever gotten more than 3 1/2 hours out of a 100% charge on my 9 Cell Battery, and I have owned it since Brand new. I think the previous owner of yours was blowing smoke up your bum.. and the 3:30 @ 50% you saw could have been the power manager not having caught up after hibernate/sleep. I know that sometimes right after I resume from sleep it will say I have like 12+ hours of life left and then it re-calibrates to the correct time left after about 20 seconds or so.
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Last edited by a moderator: May 7, 2015
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Try changing the link state power management in Vista's power manager to "moderate power savings" if you have it otherwise.
9 cell battery problem
Discussion in 'Lenovo' started by tlldcd, Jul 3, 2009.