How do I know if my solar batteries are still good?

Scott Hughes

Double Bachelor's degrees in Architecture and Electrical Engineering, 5+ years of experience with LED lighting, intelligent moving lights, and conventional fixtures

Appearance: There shouldn’t be any obvious signs of damage or corrosion on the battery.
Voltage detection: After the solar street light has charged for a day, you can use the multimeter to detect the voltage of the battery. If the voltage is the same as a new one, then it is still good.
Detect by charging: Connect the battery to the solar panel, and then use the amperemeter to detect the current. If the current is low or zero, there is something wrong with the battery or the solar panel.
Capacity test: Use the battery capacity tester to test whether the capacity of the battery is still the same as before.

More reading: Solar Street Light Battery: What to Know And How to Choose

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