I have a solar panel that provides max 7V and average 5.5V under the sun. But it cannot produce enough current even for a little 3V DC motor. Can this solar panel charge a 3V battery? Or maybe two 3V batteries?
Electronic – Can a low current (low power) solar panel charge a battery
batterieschargesolar cell
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Best Answer
As long as the solar panel can provide an output voltage higher than the battery voltage, and current higher than the battery's rate of self-discharge, it'll charge the battery.