Battery Name: 7.4V 8800mAh 18650 Li-ion battery pack Battery Model: 2S4P FLC-18650-2200 Battery Keywords:7.4V 8800mAh 18650 Lithium ion battery pack,Li-ion battery,Li-ion 18650 battery pack,Samsung 18650 battery,Samsung 18650 battery agent,LED lighting Li-ion battery pack Battery Applications: LED lighting,portable device. Battery Features: 1. UN38.3,RoHS,CE certificated Li-ion battery pack; 2. It could be customed by the clients' request; 1. UN38.3,RoHS,CE certificated Li-ion battery pack; 2. It could be customed by the clients' request; 3. We have a very good cooperation relationship with Samsung,we are their exclusive agent in South China since March,2015,so we can assemble this battery pack by Samsung 18650 cells for high-end products' application; 4. The anode materials is LiCoO2(Advantage: work voltage 4.2V-3.7V,charge/discharge voltage is stable,energy density is higher,cycle life is exceleent),the battery life cycles is over than 500 times and the capacity remains over 80% after 300 cycles; 5. Build in two-way protection IC circuit board, a single cell over charge protection voltage 4.20V±0.05V, over discharge protection voltage 2.7V±0.1V. Battery Specifications: 7.4V 8800mAh 18650 Li-ion battery pack Cell 3.7V 2200mAh FLC-18650-2200 Li-ion battery Model 2S4P of FLC-18650-2200 Norminal voltage 7.4V Nominal capacity 8800mAh Charge method CC/CV Standard charge Constant charge current: 0.2C(1760mA) Constant charge voltage: 4.2V/Cell Over charge Detecrtion voltage: 4.250±0.050V Release voltage: 4.150±0.050V Detection delay time: 1.0±0.5S Over discharge Detection voltage: 2.75±0.08V Release voltage: 3.00±0.10V Detetion delay time: 100±50mS Over discharge current Over current: 3-5A Delay time: 10.0±5.0mS Max. continuous discharge current 8800mA Discharge cut off voltage 2.75V Operating temperature Charge: 0 ~ 45ºC Discharge: -20 ~ 60ºC Storge ambient temperature (charge 40-60%) -20~60ºC less than 30 days -20~45ºC less than 90 days; 20~20ºC less than 360 days Battery dimensions（T*W*L） 38mm*69mm*75mm Weight Approx. 355.0g