Envie ECR20+1000 Battery Charger with Rechargeable Batteries (White) Envie beetle battery charger ECR 20 plus 4 pieces envie AA 1000 mah battery low self discharge, which means that you have over 80 percent charge left even after a year of no usage. Ideal for both high and low drain devices like digital cameras, video games, remote-controlled toys, camcorders, wall clocks, portable cd players, Walkman, MP3 payers, digital audio recorders and so on. Zero percent cadmium content, hence environment friendly. Ideal for wedding photographers, travel enthusiasts and last-minute packers, these batteries will never let you down.