电池是在他们最后的使用寿命，从痛苦可用、高内部阻力，大幅度降低了存储容量。
The batteries are at the end of their useful life, suffering from sulfation, high internal resistance, and drastically lowered storage capacity.
均衡充电系统能在充电时主动地将充电能量平均分配给组中各单体，从而有效提升电池组的可用容量，并延长其使用寿命。
Charge equalization systems can deliver charge energy equally to individual cells in the string. In this way, the available capacity will be enhanced and the life cycle will be extended.
应用推荐