Detailed Product Description Rechargeable Battery:Recharger batteries can be charger and discharger freely,High capacity,High energy density and double the capacity, ... ,long usage life,under different usage condition,Konnoc Ni-Mh battery can reach 500-1000 charger/dischager cycles.higher rate discharge ... or lead are added, No memory effect,need not to discharger before use,low internal resistance.