Read the voltage on your multimeter and compare it to the open circuit voltage (Voc) listed on the back of your panel. If your voltage reading is negative, reverse the probes and measure again.
[pdf] How To Repair Solar Battery1. Identify the Problem The first step in repairing a solar battery is to identify the problem. . 2. Clean the Battery Terminals Before attempting to repair a solar battery, it is important to clean the battery terminals to ensure a good connection. . 3. Equalize the Battery . 4. Replace Damaged Cells . 5. Monitor the Battery
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