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Old 13th Aug 2020, 5:27 pm   #22
paulsherwin's Avatar
Join Date: Jun 2003
Location: Oxford, UK
Posts: 20,518
Default Re: "Battery Manager" for a Li ion Battery

Using separate 18650 cells has the advantage that you can remove, examine and charge each cell individually if there are problems. Often a single cell will fail, with the rest being fine (that's why it's always worth cracking open dead laptop batteries). Single cell USB charge controller modules are available for pennies.
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