Main Causes of Zero Voltage in Lithium-ion Batteries and How to Fix Them
Lithium-ion battery zero voltage can result from short circuits, faulty chargers, hibernation mode, or aging.
You need a systematic approach to diagnose zero voltage in a lithium-ion battery pack. Start by measuring the battery voltage. If you see a zero reading, do not assume the cells are dead. Many times, the battery management system (BMS) has activated protection mode. Check the BMS status. A tripped or failed BMS often causes zero voltage.
Careful attention to lithium-ion battery zero voltage ensures safer, longer-lasting battery performance. Zero voltage in lithium-ion batteries often results from short circuits, faulty chargers, battery aging, or the battery entering hibernation mode to protect itself.
This will damage the equipment. 3) If the equipment has a voltage output range or your battery voltage is larger than 36V (minimum safety voltage to human, different from standards), you should take great caution to operate both equipment channel and battery you are going to test.
By below connection, there will be another value indicated by standard meter. If there is no negative power supply installed, the equipment cannot discharge except you connect a battery to function as a power supply. You can calibrate discharge current at this situation just string a battery in the circuit as above diagram.
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