Charge your Duracell Recharge Plus batteries up to 400 times. They are suitable for regular use devices such as wireless mouse or audio baby phones, and are guaranteed for a duration of 3 years when not in use. These powerful batteries work in any NiMH charger and are available in AA or AAA sizes. Battery voltage: 1.2V- Battery capacity: 1300mAh - Battery technology: Nickel-Metal Hydride (NiMH) - Number of batteries included: 2