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P04- Simple Solar Battery Charger

P04- Simple Solar Battery Charger

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  SOLAR ENERGY EXPERIMENT

Project 4: Simple Solar Battery Charger

Free energy to keep your batteries in shape...
 

 

Required parts: Solar cell, BAT85 diode, battery holder for two AAA batteries, two AAA 1.2V rechargeable batteries.
How it works: As long as the solar cell is exposed to light, a current will flow from the solar cell via the diode trough the batteries and back to the solar cell. The charge current dépends on the amount of light that reaches the solar cell. Max. current with the supplied cell is 30mA. A diode prevents discharge of the batteries trough the solar cell (e.g. at nighttime), as it only allows the current to pass in one direction.
 

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