[waffffffle]

I have a Pismo with 2 dead batteries. The computer has been tied to my desk now for a year, which is very frustrating. I would really like to get a working battery as cheaply as possible. On google I found these directions on how to disassemble the battery. There are 7 cells, all of them say:

US18650GR
SONY ENERGYTEC STG

So I've been looking around these batteries online. So far I've found these directions on how to do the same for a Sony battery pack. The Pismo pack actually looks easier to do since the soldering looks simpler (although I am not very good with a soldering iron). I've been having trouble actually finding the batteries sold individually. I have seen this company selling them in pairs, in a pre-fabricated casing that I would need to break open. However they're only $13 for a pair, which would give me a new battery for under $60, half the price of replacement Pismo batteries.

So I'm wondering. Hs anybody done this? Is it safe? Will I blow up my PowerBook? Also, Newer Technology now makes these batteries which claim to have higher capacity. Can I just swap out the current cells for higher capacity cells? Does anyone know where I can get these cells cheaply? Thanks.

[Drakino]

I'm almost certain you can't just replace the cells with higher capacity ones, as the microcontroller in the battery pack wouldn't charge them to full. I could be wrong, but Lithium batteries are pretty complex and probably won't be easially upgraded.

[MilkmanDan]

when something explodes on you, please post the photos.

[toothfairy]

I am sure someone has already done it. Especially with a pb as popular as the pismo.

[azdude]

If you think MIGHT, with a slim chance, be able to successfully make one for $60, can you justify the jump to $90 for a real, finished, "new" product?

This is a good deal:
http://www.powergears.com/productdetail.php?name=G3

EDIT: Whoops... nevermind. That's for the WallStreet.

[Lancer409]

Originally posted by MilkmanDan:
when something explodes on you, please post the photos.