The undervoltage protection of the 72V lithium battery is 63V. From the standard, according to the discharge rate rule of 0.5C2, a 20Ah battery is discharged with a current of 2A until the voltage capacity of a single cell drops to 1.75V. Therefore, the undervoltage value of 72V (6 batteries) is 1.75V*6 *6=63 V.
When the line voltage drops to the critical voltage, the protective action of electrical appliances is called undervoltage protection. Its main task is to prevent equipment from burning out due to overload. p>