ICR 3.7V 26650/4000mAhSpecification:li-ion battery Type:Lithium-ion rechargeable cell Nominal voltage:3.7V Nominal capacity:4000mAh Max charge current:4000mA 1C Weight:80.5g Charging method:charge with constant current 1C to 4.2V, then charge with constant voltage 4.2V till charge current is less than 0.01C Discharge cut-off voltage:2.5V, the over-discharge detection voltage of PCM Operating environment :Charging, 0°C ~ 45°C ; 65±20%RH Discharging, -20°C~60°C ; 65±20%RH Storage environment:-20°C~45°C 65±20%RH,storage for a long time(>3 months) and the storage condition shall be:<35°C;65±20%RH;3.7~4.2V Advantages: 1, High energy density 2, High working voltage for single battery cells 3, Pollution-free 4, Long cycle life 5, No memory effect 6, Capacity, resistance, Voltage, platform time consistency is good 7, With short-circuit production function, safe and reliable 8, Factory price& High quality 9, Good consistency, low self discharge 10, Light weight, small size Features: 1, Longer storage life than NiMH Batteries 2, Light weight and higher energy density than any rechargeable battery 3, Installed IC chip will prevent the battery pack from over charge and over discharge. It helps protect battery chemistry integrity and prolongs battery life. 4, Installed polyswitch will cut off power if battery discharge current more than 6.6Ah 5, Perfect for building up battery pack for medical equipment Back-up or EPS Emergency Power 6, Supply which requires compact size and lighter weight 7, The battery module is wrap by PVC Others: 1, OEM orders are available 2, Superior quality and cost-performance ratio 3, Tags, plugs and connectors are available 4, We could design and produce the battery pack with plastic shell and assembly procession for customized configurations is available (we could design and develop Li-ion battery according to your product work performance & structure apprearance)