Thinkpads Forum

My laptop battery is discharging, even though it shows 100% full and condition is good, it still dischages in few minutes. Here is the snapshot of the battery information.

status: no activity
Full charge capacity:55.30wh
remaining percentage: 99%
remaining capcity: 45.93Wh
current: 0.00A
Voltage:12.39V
Temp: 28C
Cycle count: 492
FRU part: 42T4795

Condition shows: Good

Please let me know if anything wrong with the battery?

Sounds like the battery is nearly done and you need a replacement. Unfortunately about the only thing we can do to these battery is reset/condition them.

praveendk wrote:My laptop battery is discharging, even though it shows 100% full and condition is good, it still dischages in few minutes. Here is the snapshot of the battery information.

status: no activity
Full charge capacity:55.30wh
remaining percentage: 99%
remaining capcity: 45.93Wh
current: 0.00A
Voltage:12.39V
Temp: 28C
Cycle count: 492
FRU part: 42T4795

Condition shows: Good

Please let me know if anything wrong with the battery?

yes, with 492 cycles it must be pretty old and they DO die from about 1 to 3 years of age..
my x300 lasted longer but with far fewer cycles..
i don't have much advice for getting a replacement in india..
here in the USA i would check ebay, amazon and a few other sites or lenovo but i would also seek a lenovo battery as the chinese copys have not seemed to last as long..

welcome to the forum..

Thanks for the responses. I am using this battery since 3 years. Are there any tips using these battery's? should i take care of cylce counts? does it mean should i connect to direct power where ever possible?

some one mentioned about "reset", i did the reset button yesterday, however when i click continue, i did not notice that it is doing resetting the battery.


Thanks for sharing information.

Before starting a battery reset, you should have it already fully charged and plugged in. What you should notice is that it will begin discharging the battery while still plugged in until it completely gives out. Then it will recharge it to it's Full charge capacity, which may or may not be a higher number after the reset than it was before

Three years is a long time for a laptop battery in my opinion. I try to do all battery best practices, and after three years, my full charge capacities are at around 50% of what they were new. Charging cycles can be part of the problem, but in my experience, if a battery is properly maintained, it will still operate satisfactorily with a high cycle count.

I recommend reading pages around this site: http://batteryuniversity.com/learn/arti ... _batteries