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How many months/years before a laptop battery fails to hold full charge?

#1runromPosted 7/10/2012 9:31:19 AM
Just wondering.
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#2Solid_snake137Posted 7/10/2012 9:31:56 AM
2 days
#3DeathScythe_527Posted 7/10/2012 9:33:57 AM
1 second.
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#4WeaponX1138Posted 7/10/2012 9:36:04 AM(edited)
Candle ja.....
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#5Pfantzypantz_Posted 7/10/2012 9:36:58 AM(edited)
It took like 2 years or so for mine, it 'fully charges' at 75% now

-until I noticed anyway...
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#6DiehardFFv2Posted 7/10/2012 9:35:54 AM
The first time you charge it. Will it be a noticeable difference? No, but it slowly degrades over time. It's not as though you get 500 charge cycles and then bam it magically drops down to 80% of its original capacity.
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#7runrom(Topic Creator)Posted 7/10/2012 9:39:44 AM
From: DiehardFFv2 | #006
The first time you charge it. Will it be a noticeable difference? No, but it slowly degrades over time. It's not as though you get 500 charge cycles and then bam it magically drops down to 80% of its original capacity.

Yeah that's what I meant. I should have clarified the topic :/
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MBP 2009 | AMD PII 720 x3 + 4870 | HP Touchpad 32gb CM9 0.6 | MyTouch4g CM7
Games I play: TF2, Company of Heroes, Killing Floor
#8UberLurkerPosted 7/10/2012 10:01:57 AM
I have a laptop that's ~8 years old, its seen moderate use and I can get about 1 - 2 hours from a full charge depending on what I'm doing and what power setting I have set. That's about a ~50% decrease over it's lifetime if my off-the-top-of-my-head estimate is correct.

FWIW I always run the battery into the ground before I recharge it... I've heard from various sources that's the best way to mitigate battery memory and maximize it's lifespan.
#9kidersxPosted 7/10/2012 10:06:36 AM(edited)
UberLurker posted...
I have a laptop that's ~8 years old, its seen moderate use and I can get about 1 - 2 hours from a full charge depending on what I'm doing and what power setting I have set. That's about a ~50% decrease over it's lifetime if my off-the-top-of-my-head estimate is correct.

FWIW I always run the battery into the ground before I recharge it... I've heard from various sources that's the best way to mitigate battery memory and maximize it's lifespan.


It's the opposite for newer Li-ion batteries, IIRC. That's nickel-cadium.

EDIT
Here's a discussion I googled:
http://androidforums.com/htc-desire/203082-charging-practice-use-till-dead-whenever.html
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#10JonWood007Posted 7/10/2012 10:13:10 AM
DeathScythe_527 posted...
1 second.


Pretty much this. The battery begins to wear the second youy start using it. I noticed a few days after Christmas in HW monitor I already had like 2% wear. Now, 7 months later, it's at 13%. Batteries apparently decay 20% a year or so, from what I've read.
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