Terminal to the + terminal. Chemical energy is transformed into electrical potential energy. The battery will transport charge from one plate to the other until the voltage produced by the charge build-up is equal to the battery charge example: a 12V battery is connected to a capacitor of 10 nF. How much charge is stored? Answer Q=CV=10x10-9 x 12V=120 nC if the battery is replaced by a 300 V battery, and the capacitor is 2000F, how much charge is stored?