The present application discloses a
cut-off
voltage control method,
system and electronic device, belonging to the field of battery technology, including: determining that the
battery cell temperature is in a first temperature range, and the remaining capacity of the battery is less than or equal to the capacity threshold; in response to the
discharge rate of the battery being less than or equal to the first
discharge threshold, adjusting the battery
cut-off
voltage to a first
voltage value; in response to the
discharge rate being greater than the second discharge threshold, adjusting the
cut-off voltage to a second voltage value; wherein the second discharge threshold is greater than the first discharge threshold, the first voltage value is greater than the second voltage value, and the first temperature range is characterized as the range of the rated
operating temperature of the battery. The method provided in the present application adjusts the battery cut-off voltage according to the
battery cell temperature and the
discharge rate when it is determined that the remaining capacity of the battery reaches a certain range, so that the battery can discharge more
electricity at a high
discharge rate, thereby extending the battery life and improving the battery endurance.