This Duracell Rechargeable Batteries AA Pack of 4 is suitable for use with a vast array of devices in the home and office.This pack contains 4 Duracell Rechargeable batteries making them great value for money. These batteries will efficiently power items that take AA sized batteries such as remote controls, torches, radios and clocks.. Stays charged up to 6 months when not in use. 1 charge = up to 45 hours in a wireless mouse (results may vary in device)This Duracell Batteries AA Pack of 4 is ideal for students, officer workers and at home, as well as making a great buy to accompany battery powered gifts.