Maha Energy is the manufacturer of Powerex and Imedion Rechargeable NiMH batteries and smart chargers. Maha Energy currently produces all products in Japan or Taiwan (TAA compliant countries). We offer a full range of batteries (AA, AAA, C, D, and true 9V) and smart chargers. Our batteries have the highest capacities available and will last almost twice as long as the leading national brands. We are headquartered in Southern California and have been in business for over 20 years.