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How to rebuild a Li Ion laptop battery?

Fresh3 days ago
Mar 15, 20262054 views
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Problem

I have an aging Gateway NX560XL laptop. The battery is toast and a new one, even aftermarket, starts at $130. So, to experiment, I began tearing apart the old battery to see what can be done. I found it used 8 standard size 18650 Li Ion cells arranged two cells parallel then in series (like: ). Som…

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Fix for: How to rebuild a Li Ion laptop battery?

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Typically, the batteries are connected to each other via spot welded tabs. You could solder wires to the batteries you found, but it might not fit afterwards. Make sure you use a wire with enough current carrying capacity (i.e. 14 AWG). Theses batte…

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