2 Pack of Hitachi DS18DVF3 Power Tool Replacement Battery [18V, 3.0Ah, Li-ion] Tech Rover&trade; Max-Life Series (Pack of 2) Tech Rover&trade; Quality product with 30-DAY Worry-Free Return Policy All Tech Rover&trade; branded items carry a 1 year warranty against manufacturer defects. This battery is 100% Compatible and will NOT void your original warranty. Brand New Battery, [3.0Ah, 18V, Li-ion], 18-Volt lithium-ion battery provides 3.0 Amp/hr and weighs 40% less than Ni-Cad or NiMH batteries Li-ion technology provides 3 times as many charge cycles as Ni-Cad batteries and 25% more run time per charge than Ni-Cad batteries Uses only the highest quality Japan cells, safe with rapid-charge technology while providing overcharge and overdischarge protection to increase the life of the battery