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Mobile Phone Batteries

I

imported_rod

Golden Member
I'm thinking of building a USB mobile phone battery charger, and I'm just wondering if anyone knows anything about mobile phone batteries (especially Li-ion ones) and charging them.

I know some Li-ion batteries have built-incircuitry which controls charging, and all they require is a clean dc voltage. Do Mobile Phone batteries behave like this, or do they require charging circuitry and the like???

Thanks all
RoD
 
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