* The most common batteries. * Equipped with Precharged technology, but not yet recharged. * Rechargeable up to 1000 times without damaging the memory. * Mercury-free and cadmium-free. * A perfect solution for high-use devices (wireless mice, MP3 players, digital cameras, flashlights). * 3-year warranty. *This battery is also known as: MN1604, 6LR61, 522, 4022, K9V, 6AM6 and A1604.* Used batteries? Drop them off for free at a collection point near you.