Powerex MH-4AAA1000-BHR AAA NiMh 1000mAh batteries - pack of four
The Powerex Precharged MHRAAAP4 Rechargeable AAA NiMH Batteries (1.2V, 1000mAh) - 4-Pack is a package of 4 AAA nickel-metal hydride (NiMH) batteries. They have a voltage of 1.2V and a capacity of 1000mAh, with a minimum capacity of 900mAh.
The batteries are capable of being stored for an extended period of time and still retaining a full or nearly full charge. After a year, for instance, they will retain up to 85% of their capacity.