Battery charging in cold weather

When the temperature of the electrolyte increase or decreases, the charging voltage needs adjustment from the usual setting/practices. For a full charge or float charge, a correction is required in the set voltage. At low temperature like -10 ⁰ C, the voltage setting has to be higher to compensate for the sluggish response to charging. Similarly, at high temperatures like 40⁰ C, the reactions are faster and need a lower charge and float voltages are to be set. THIS IS CALLED TEMPERATURE COMPENSATION. See the table below.