Product Name: Flashlight 18650 3.7V6000mah lithium batteries type: Li-ion 18650 3.7V2000mah combinations: 186,501 Series 3 and the voltage capacity: 3.7V6000mah main protection functions: over charge, over charge, over current, short circuit and temperature and balance function Applications: flashlight, mosquito swatter, mobile lighting, mobile power, warm baby, hair dryer, mobile DVD, radio, children's toys, etc. No Item Parameter 1 Nominal voltage 3.7v 2 Rated Capacity 6000mAh (0.2C Discharge) 3 Continuous Current 1-5A 4 overcurrent protection value 10-15A 5 for power ≤38.5W 6 overcharge protection voltage 4.50V + / - 0.25V / CELL (optional) 7 discharge protection voltage 2.50V + / - 0.25V / CELL (optional) 8 9 constant current charging mode charging voltage of 40-42V 10 maximum charge current 2.0-4.0A 11 Charging temperature 0 ~ 45 ℃, 45 ~ 85% RH 12 Discharge Temperature -20 ~ 55 ℃ , 45 ~ 85% RH 13 Storage temperature and humidity range short-term: more than one month -20 ~ + 55 ℃, 45 ~ 85% RH mid-term: more than three months -20 ~ + 45 ℃, 45 ~ 85% RH Long term: a In less than -5 ~ + 20 ℃, 45 ~ 85% RH 14 Dimensions Height / Width (protective panel) / width / 15 weight <40kg / only can provide OEM / ODM services have a variety of different capacity batteries: 2000mAh, 2200mAh, 2400mAh, 2600mAh http://18650huolan.1688.com/