Rechargeable 18650 Li-ion/Lithium/Lithium Ion Battery Pack 2s1p 7.4V Battery 2200mAh

7.4V 2200mah (18650*2) Battery PackDescription:
Packing:
High quality 7.4V 2.2Ah Li-ion rechargeable battery Module is made of 2 PCS High quality SANYO/LG/Other Top Brand Korea 18650-2200mAh Li-ion Cell with PCB.Packed side by side in series
Wrapped by PVC tubeVoltage: 7.4V(working) 8.4V(peak) 5.5V(cut-off)
Capacity: 2200mAh (16.28wh)Protection:
One PCB installed with the battery pack and protects the battery from
. Overcharge(>8.4V)
. Overdischarge(<5.5 V)
. Over drain (>9 Amp)
. Short circuitsPrewired: 6" 20 AWG open end wire
Charging rate: 1.0A ( recommended ), 2 A max.
Max. Discharging Rate: 9 Amp limited by PCB
Dimensions: (LxWxH)72 x 3 7x 20mm
Weight: 100g
BrandQUAWINModelQW074-2200-LNominal Voltage7.4VNominal Capacity2200mAhStandby Current≤ 15μAWorking Efficiency≥ 99%Operating Voltage Range8.4V-6.0VMax. Output Power15WLoad Resistance5Ω-200ΩCharge Cut-off Voltage8.4VDischarge Cut-off Voltage6.0VCycle Lifeabove 500 cyclesInternal Resistance
( Max, at 1000Hz. ):≤ 230 mΩBattery Dimention(MM)22mm(T)*48mm(W)*70mm(H)Output/Input PortDC/1.35*3.5/7.0mmBattery Weight120gCharge Temperature0 °C~ 45 °C; 32 °F~ 113 °FDischarge Temperature-20°C~60°C; -4 °F~ 149 °FStorage Temperature-20 °C~ 45 °C; -4 °F~ 113 °FBattery colorblack caseStorage Performance75% power remains for one yearLED battery indicator(4-stage)no load: green(100%)-yellow(75%)-orange(50%)-red(25%)temperature control(4-stage too)with load: green(99% power output)-yellow(75% power output)-orange(50% power output)-red(25% power output)buzzerpress the switch each time,the buzzer will make a soundTipsof matching heating element
the suitable power of matching heating element is 1.5w---2w(with that power heating element,the heating temperature can reach 35°c---65°c,depens on the battery output power level)