我需要给手机充电——电量低了。

I need to ___charge my cell phone - the battery is low.

新款机型使用无线充电板为平板电脑充电。

The new model uses a wireless pad to ___charge the tablet.

给这辆电动汽车充满电通常需要大约六小时。

It usually takes about six hours to fully ___charge the electric vehicle.