Panasonic BK-4MCCA4BA eneloop Rechargeable Batteries (AAA; 4 pk) Increased power for high-drain devices; Rechargeable up to 2,100x; Precharged & ready to use; Retains 65%-70% capacity after 5 years; No memory effect; Can be charged when partially drained; Functions down to -4deg F; AAA; Up to 800mAh; 4 pk;