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Old 06-17-2015, 10:23 PM #17
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Old 06-17-2015, 10:25 PM #18
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Default Re: What to do with all these batteries? old laptops

Get a hobby charger* and check their capacity with a charge/discharge cycle. I've checked hundreds of salvaged 18650s, some are 600mAh, some are 2400mAh, personally I keep anything over 1800mAh and send the rest for recycling.

*and some magnets to stick onto the terminals and grip with croc clips
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Old 06-18-2015, 04:10 AM #19
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Default Re: What to do with all these batteries? old laptops

internal resistance?
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Old 06-18-2015, 07:42 AM #20
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Default Re: What to do with all these batteries? old laptops

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Originally Posted by 10fenny View Post
internal resistance?
Whenever electrons flow through something it causes resistance. The inside of a battery is no exception. Some materials have more resistance than others. Basically, how many electrons actually pass through matter without colliding into atoms, I believe.
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