Power up your eneloop batteries quickly with this Panasonic charger. Any combination of AAA or AA units can be recharged in as little as 3 hours, and it includes 4 pre-charged AAA batteries. This Panasonic charger has colored lights to indicate the status of each battery separately, and it turns off automatically for safety. Compatible with eneloop and eneloop pro rechargeable NiMH AA and AAA batteries, charges up to 4 AAA batteries in 3 hours, auto shut-off, 4 fuel gauge LED indicator lights, peak sensing technology.