DIY solar charger
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Don’t spend a penny to make a battery by yourself, Now let me introduce this method
The followed is the required items to make a solar charger and steps.
Required items:
1. rechargeable?batteries (which can be regular cycle charge)
2. four Neodymium magnets(N42 or N45)
4. solar cells
6. Copper coil
Steps:
Fold the two ends of? the playing card,then paste the copper coil