Charging your Smartphone or gadget while camping outside is not an easy task but this is simple solution make it very simple to charge your Smartphone or gadget with 12V battery. The circuit is consist of a few cheap and simple electronic components. The part list is given below

Parts

1 x USB port

1 x circuit board (vero board)

1 x lm7805 regulator

1 x heat sink

2 x 10uf capacitors

2 x wires with alligator clips

Circuit diagram

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Note: this circuit produces a lot of heat and has power losses so this should be only used in emergency situations

Soon I’ll make a video on an efficient charger

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