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美国一家公司新近推出一种“开顶”可充电电池,电池内已备充电器。按一下电池底的按钮,电池顶即打开露出两片插嘴,将此插嘴插入插头,即可自动充电,12小时可全
A U.S. company recently introduced a type of “open top” rechargeable battery that has a battery charger. Press the button at the bottom of the battery and the top of the battery will open to reveal two plugs. Insert the plug into the plug to automatically charge the battery. The whole time can be 12 hours.