... -rate 1600mah rechargeable battery 1,low internal resistance 2,low self-discharge 3,deep cycle life 4,IEC standard NIMH high-rate ... 1600mah rechargeable battery 1,low internal resistance 2,low self-discharge 3,deep cycle life,500-1000times 4,IEC 61951-2 ... international IEC standards, they can be fast charged with long discharge time, a longer lifespan, a larger capacity and stably performance ...