I have many devices where I would love to replace the AAs or AAAs with a rechargeable 3.7v (or similar voltage) Li-ion battery. I have two extra 3.7v Li-ion batteries meant for a GBA SP. I know I need a protection circuit for charging and discharging but specifically which protection circuit?
Will this work http://www.batteryjunction.com/prcimopcbfor.html ?
How exactly do I wire this up?
Thanks for the help
Replacing AAs with a 3.7v Li-Ion
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