High quality D size 10,000 mAh high capacity nickel hydride metal (Ni-MH) rechargeable batteries with tabs for easy solderingUltra long running time with this 10,000 mAh high capacityVery long life time and can be recharged up to 1000 times.Can provide over $1000 savings of rechargeable batteries by eliminating the need to buy hundreds of;D-size Alkaline; batteries which cost $2.50 a piece.Exact replacement for standard D size batteries and NiCd rechargeable batteriesConvenient operation due to the advantage that Ni-MH batteries have no memory effect. Can be rapidly charged with smart chargers and universal chargers6 months warranty.Battery tested based on International Electronic Commission (IEC) standard to ensure capacity, quality and life time Technical SpecificationsDimensionHeight 60 mm, Diameter 33 mmWeight:;0.36lbs per cell;Capacity10,000 mAhVoltage1.2VStandard Charge15 hours @ 800 mARapid Charge3 hours @ 4000 mA;