The contents of the Eneloop battery set: battery charger + 4 750mAh AAA Eneloop batteries Features: "slow" charger that can be connected directly to the mains socket, which is also suitable for charging AA (pencil) and AAA (micro) batteries. The charging process is indicated by 2 LEDs. charging current: 250mA (for AA (pencil) batteries) charging current: 120mA (for AAA (micro) batteries) size: 6.5 x 10.5 x 7.5cm The Eneloop series is a long-life, pre-charged battery that can last up to 2100- can be recharged many times. Minimum capacity: 750 mAh, rechargeable 2100 times, retains 70% of its charge even after 10 years Charging times: Battery size Capacity Charging time 2 / 4 batteries AA 2400-2500 mAh 12 hours AA 1900-2000 mAh 10 hours AA 950-1000 mAh 5 hours AAA 900-950mAh 12 hours AAA 750-800 mAh 10 hours AAA 550-650 mAh 8 hours The battery charger switches off automatically after 13 hours for safety.