ON THE WAY&reg;6Pcs 2000mah ICR 14500 3.7V AA Rechargeable Li-ion Battery for LED Flashlight Torch with 14500 Battery Charger Li-Ion Rechargeable 14500 with IC Protection Provides excellent continuous power sources to your device It is good both in low and high temperature operations Holds 85% charge over 12month period Can be charged over 500 times.Warm tips:Before purchase, please make sure the battery voltage corresponds with your device voltage