Introduction: Homemade Portable Power Bank Backup Battery for Mobile

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:


EnochA1 (author)2016-06-16

Please send circuit diagram

akshatgite124 (author)2016-02-12

plz send circuit diagram

dtpit (author)2015-03-23

pls send circuit diagram

dasimpson1981 (author)2015-03-23

you have not put in a charge circuit or battery protection circuit

About This Instructable




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