AA-Harting brand NiMH rechargeable batteries contain cadmium, mercury and other harmful substances, will not cause environmental pollution. High capacity, long life. In normal use, at least 500 cycles life. A good discharge platform, can be quickly charged and excellent large-current discharge performance. Easy to use, maintenance-free, can be freely combined. No memory effect, low internal resistance. Scope: communications equipment, cordless phones, cell phones, radio transceiver, emergency lights, flashlights, electric toys, laptops, music players, VCD, DVD,, electric shavers, electric toothbrushes, etc.