The invention discloses a storage battery low-temperature charging and discharging method based on temperature compensation. The method comprises the following steps that 1) when the environment temperature is lower than -10 DEG C during charging and discharging of a battery, a temperature compensation device is started to raise the temperature; (2) in a low-current 0.05-0.1 CA pre-charging judgment stage, charging reaches 0.3-0.4 H, if the
voltage of a single
battery cell does not reach 2V, the charger gives an alarm to display
abnormality, and charging is ended; 3) segmented charging, concretely, in the first stage, the
constant current is 0.21-0.24 CA until the
voltage of a
battery cell is 2.4 V, or the charging time reaches 1-4H; in the second stage, the
constant current is 0.1-0.2 CAuntil the single-
cell voltage of the battery is 2.45 V or the charging time reaches 3-8H; in the third stage, the current is limited to be 0.01-0.05 CA, the
constant voltage of a single
cell of the battery is 2.48 V, the current is lower than 0.01, or charging reaches 1-2H; in the fourth stage, the
constant current is 0.07-0.08 CA until the voltage of a single
cell of the battery is 2.5 V and thecharging time reaches 0.5 H; and in the fifth stage, the voltage of the cell of the battery is limited to 2.29-2.3 V, and the current is limited to 0.005-0.02 CA for long-time
floating charge. According to the storage battery low-temperature charging and discharging method based on temperature compensation, the problem that the service life is shortened due to insufficient charging of the storagebattery at a low temperature can be avoided.