This handy little portable solar charger can provide USB power when your device runs out of juice.
You will need:
– A small solar panel
– A AA battery holder
– 2 rechargeable batteries
– A standard diode
– Some wire
– An Altoids tin
– A small USB emergency charger
– Glue, soldering gun and solder
Jay Oh Edwards
“What exactly is a ‘standard diode’?”
What exactly is a ‘standard diode’?