Warm-house&reg;4 Pcs 2300mAh 18500 Li-ion Rechargeable Battery for Led Flashlight Torch Electronic cigarettes Toys Security Automotive Higher energy density and lower weight than other rechargeable batteries Ideal for building power packs for RC Car, plane, robots etc with less cells needed than that NiMH or NiCd batteries Battery tested based on International Electrotechnical Commission (IEC) standard to ensure capacity, quality and life time Cycle Performance: 85% of initial capacity at 300 cycles Perfect support LED Flashlight Torch Electronic cigarette Supplies Car Security Toys