Just how to rebuild a Li Ion laptop battery?

I have an aging Gateway NX560XL laptop. The battery is salute and also a new one, also aftermarket, begins at $130. So, to experiment, I started abusing the old battery to see what can be done. I located it made use of 8 typical dimension 18650 Li Ion cells prepared 2 cells identical after that in collection (like: ====). Some on-line purchasing disclosed ~$ 7-13/ ea substitutes relying on mAh result. My strategy is to load test to establish the negative cells and also change just those, as I read that commonly just 1 or 2 might misbehave.

I'm skillful with soldering, nonetheless these cells are affixed with bonded tabs. Several of them damaged throughout disassembly and also I'm not exactly sure just how to reattach them. What I located online are cells like these that have solder tabs pre-welded throughout so I can solder cords onto.

Exists any kind of overview readily available that gives the guidelines and also components to do this sort of rebuild?

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2019-05-07 08:22:43
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Answers: 3

Unless you have experience with electronic devices and also soldering I would not risk it. Batteries created inaccurately have an unhealty personality to severe exothermic responses (i.e. impact up) which can be fairly deadly if you are close.

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2019-05-31 12:07:26
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Beware : Soldering Li-ion cells can be rather unsafe, as when they fume such as throughout soldering they can often tend to take off.

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2019-05-07 18:26:22
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Typically, the batteries are attached per various other using place bonded tabs. You can solder cords to the batteries you located, yet it could not fit after that. See to it you make use of a cord with adequate existing lugging ability (i.e. 14 AWG ). Theses batteries do fume and also pass a great deal of existing throughout optimal lots. You can additionally build yourself a spot welder instead inexpensively if you intend to attempt this course.

See to it the instance is well shut after your fixing. Epoxy needs to suffice.

There are a few tutorials on the internet too.

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2019-05-07 17:51:18
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