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Battery Replacement?

post #1 of 6
1/10/04 at 5:36pm
Thread Starter 
Hi, I just bought my friends old laptop, its an alienware but I think its also the sager np5660 it has an ati 9000 64mb and a p4 3.06 533fsb. I was testing the battery life and I would only get 1hr watching a dvd and around 30mins playing a game. Also the battery would get really hot. Now would getting a new battery extend the life or is what Im getting normal?
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post #2 of 6
1/10/04 at 6:12pm
I dunno specifically but keep in mind that Li-ion batteries are not as durable as NiMH and NiCd designs, although they do not suffer from the memory effect. At a typical 100% charge level (notebook battery, full most of the time) at 25 degrees centigrade, Li-ion batteries irreversibly lose approximately 20% capacity per year from the time they are manufactured, even when unused. (6% at 0 degrees, 20% at 25 degrees, 35% at 40 degrees centigrade. When stored at 40% charge level, these figures are reduced to 2%, 4%, 15% at 0, 25 and 40 degrees centigrade respectively.) Every (deep) discharge cycle decreases their capacity. The degradation is sloped such that 100 cycles leave the battery with about 75% to 85% of the original. When used in notebook computers or cellular phones, this rate of deterioration means that even in short as one year the battery could have capacities too low to be still usable.
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post #3 of 6
1/11/04 at 12:36am
Sounds about right, especially how those AW guys overclock everything. When Li-ions start to go, they go pretty quick (week or so).
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post #4 of 6
1/11/04 at 1:56am
Thread Starter 
Wow thanks for the info usrbingeek. So It would help if I were to just get a new battery? Is there something like a NiMH replacement for the Li-ion battery for this laptop or am I just basically stuck with buying a new Li-ion battery ever couple of years?
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post #5 of 6
1/11/04 at 4:23am
You may find a NiMH substitute but I wouldn't count finding it. Most likely you are stuck. But it doesn't hurt to look, especially when your keyboard can do the walking. There are a lot laptop battery suppliers, many of them with web pages. You will need your model number.
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post #6 of 6
1/11/04 at 3:14pm
Wouldn't there be a potential problem with using the NiMH batteries because the charging system is one for a LiON battery. Might casue some problems, don't know for sure. Most battery suppliers will go with the OEM Specs for replacement parts and I don't think (not sure) that Clevos is engineered for the NiMH specs. Just my $.02 worth.

Caution......
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