Laptop battery life

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Old 02-15-09, 01:19 AM
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Question Laptop battery life

Once a battery has a reduced charge life (45 min.), is it possible to build it back up by any means?

Thanks.
 
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Old 02-15-09, 05:49 AM
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Not if it's a lithium ion, which have been installed in laptops for several years.
 
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Old 02-15-09, 08:22 AM
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reduced charge life means one or more of the cells are bad.

-a|ex
 
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Old 02-15-09, 02:25 PM
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Not necessarily, Alex.

LION batteries lose about 20% of their capacity per year. Environmental conditions (the heat inside a laptop, or leaving it in a hot car) can accelerate the loss. So can deep-cycle discharges, i.e. running the battery all the way down and then recharging.

2 to 3 years and 300 or so charges are about the limit.

The way to prolong the life of a LION is to keep it at about 40% charge, remove it from the laptop when the laptop is running on AC power, and store the battery in the fridge (not the freezer).

Charge it to 100% only when you know you'll need it.

LION batteries don't have memories like NiMH and NiCD.
 
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Old 02-16-09, 02:44 PM
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Originally Posted by Rick Johnston View Post
Not necessarily, Alex.

LION batteries lose about 20% of their capacity per year. Environmental conditions (the heat inside a laptop, or leaving it in a hot car) can accelerate the loss. So can deep-cycle discharges, i.e. running the battery all the way down and then recharging.

2 to 3 years and 300 or so charges are about the limit.

The way to prolong the life of a LION is to keep it at about 40% charge, remove it from the laptop when the laptop is running on AC power, and store the battery in the fridge (not the freezer).

Charge it to 100% only when you know you'll need it.

LION batteries don't have memories like NiMH and NiCD.
Or you could just buy a new battery for $50 when yours goes dead. :Peeping On U2: Or get a desktop.....
 
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