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How to make a powerbank with 9v battery.

Home made 9v power bank.

U In this article we will learn how to make a power bank for our phones in case of emergency,smartphone has became a very unique device in the life of men but the only problem is the power source to keep it running on.we have many diy power banks we can make like rechargeables,4000mah power bank,non rechargeables,hand driven charger etc.So let's cut our story shot and go straight to the point.

Materials.

1.ic7805cv that is for regulating 9v_5v

2.old USB.

3.wires for connection

4.LED,.1k resistor,if you wish to add an indicator bulb.

5.9v battery.

Circuit diagram below.


good luck!!!!

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