The pioneering technology of Eneloop contradicts this charger from another era: -The batteries must be charged in pairs (one or three => lost) -The charger does not know when the batteries are fully charged. Once filled, it continues until security (16 hours I think), which can reduce the life of our beautiful white cells. Prefer a smart charger lacrosse guy who independently support cells, which triggers the end of charging with a mini amperage 200A (nor, for AAA sizes)