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Homemade Portable Power Bank Backup Battery for Mobile with :

Battery Holders, 2 or 3 laptop batteries cells 18650, MC34063

Presented here is the simple circuit of one boost (step-up) converter, which can output steady 5VDC supply from a 3,2 VDC input. This circuit can be used to power your 5V for your mobile or android PC

You can homemade it from 4000mAh to 10200mAh ( option 2 or 3 cells 2000mAh or 3400mAh )

Wood and few time on holiday and you has got nice tools for mobile are anywhere

More Homemade External Power Bank Backup Battery for Smart Phone here:

<p>Please send circuit diagram</p>
<p>plz send circuit diagram</p>
pls send circuit diagram<br>
<p>you have not put in a charge circuit or battery protection circuit </p>

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