电子表电池旧了怎么办?现介绍一种省钱快速充电的方法。 取一个电池七成新的手电筒,打开后盖,把用旧的电子表电池放在电筒里面的电池后面,正极对电筒里电池的正极,负极对负极。然后,把电筒后盖拧上,打开手电筒开关,电筒电珠亮了,表示电子表电 Electronic watch battery old how to do? Now introduce a quick way to save money. Take a new battery Qicheng flashlight, open the back cover, put the old electronic watch battery on the back of the battery inside the flashlight, positive battery on the positive pole, negative on the negative. Then, the flashlight back cover screwed on, turn on the flashlight switch, flashlight beads lit, said the electronic watch