balancing battery

• 缓冲电池组

balancing battery的用法和样例：

例句

1. Cars and truckes use the quick replacement battery as its power.
   汽车和卡车可以迅速替换的电池组作动力。
2. Pick up a battery recharger and an extra set of NiMH batteries.
   最好挑选一个电池充电器和一套特优的镍氢电池组。