Answer to Question #244659 in Physics for mion

Question

A rechargeable flashlight battery is capable of delivering 85 mA for about 12 hr. How much charge can it release at that rate? If its terminals voltage is 1.2 V, how much energy can the battery deliver?

Answer 1

The charge is

$$Q=It=(85·10^{-3})(12·3600=)3672\text{ C}.$$

The energy is

$$E=IVt=4406\text{ J}.$$