battery help required

T400/410/420 and T500/510/520 series specific matters only
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praveendk
Posts: 2
Joined: Wed Nov 06, 2013 8:34 am
Location: Hyderabad, India

battery help required

#1 Post by praveendk » Wed Nov 06, 2013 8:41 am

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?

Cigarguy
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Re: battery help required

#2 Post by Cigarguy » Wed Nov 06, 2013 8:45 am

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.

BillMorrow
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Re: battery help required

#3 Post by BillMorrow » Wed Nov 06, 2013 1:26 pm

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..
Bill Morrow, kept by parrots :parrot: & cockatoos
Sysop - forum.thinkpads.com

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She was not what you would call refined,
She was not what you would call unrefined,
She was the type of person who kept a parrot.
~~~Mark Twain~~~

praveendk
Posts: 2
Joined: Wed Nov 06, 2013 8:34 am
Location: Hyderabad, India

Re: battery help required

#4 Post by praveendk » Wed Nov 06, 2013 10:31 pm

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.

jayton4
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Location: United States

Re: battery help required

#5 Post by jayton4 » Fri Nov 08, 2013 2:10 pm

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
jayton4
Current models/upgrades:
T410 2518X01- 8GB, Corsair Force GT 120GB
T410s 2901A3U- 8GB, Intel 6300 WiFi, Crucial m4 mSATA 256GB SSD w/ microSATA adapter
T420s 4174PPU- 16GB, Intel 520-series 7mm 180GB SSD, Crucial M550 512GB mSATA SSD, Intel 6300 WiFi
and a few classics in storage

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