导致蓄电池冬季电量不足的原因是：
1、蓄电池电解液不宜扩散，两极的活性物质的化学反应速率变慢；
2、蓄电池电解液的阻抗增加，蓄电池电压下降，蓄电池容量会随着蓄电池温度下降而减少。蓄电池冬季比夏季的使用时间短，特别是使用于冷库的蓄电池由于放电量大，实际的使用时间会显著减短，若要延长蓄电池的使用寿命，则要在进入冬季之前，先提高运行环境温度。
The reason for the low battery charge in winter is:
1. The electrolyte of the battery should not diffuse, and thechemical reaction rate of the active substances at both poles willslow down;
2. The impedance of the battery electrolyte increases, thebattery voltage decreases, and the battery capacity decreases asthe battery temperature decreases. So the usage time of batteriesin winter is shorter than that in summer, especially for batteriesused in cold storage due to their large discharge capacity, theactual usage time will be significantly reduced. To extend theservice life of batteries, it is necessary to increase theoperating environment temperature before entering winter.
