3.7V 5200mAh Cylindrical Battery Pack
3.7V Li-ion rechargeable battery made of 2 pcs of high quality Cylindrical 18650 cell with PCB and polyswitch for full protection

Description:
Cell: 18650 (High quality Sanyo/LG/Other Top Brand Korea 18650)
Capacity: 5200mAh
Voltage: 3.7V
Battery Pack: 1S2P 3.7V 2.6AH
Pack: PVC Shrink tube
Prewired:18 AWG open end wire
Dimensions: (LxWxH)69 x 37 x 21mm
Weight: 120g (About)

Technique:
Charging Voltage: 4.2V CC/CV
Maximal continuous charging current: 6A(Current can be changed according to the demand.)

Over charge protection:
Over charge detection voltage: 4.28V +/- 0.025V
Over charge release voltage: 4.08 +/-  0.025V
Over discharge protection:
Over discharge detection voltage: 3.0V +/-  0.05V
Over discharge release voltage: 3.0V +/-  0.05V
Over Current protection
Short Protection:
Exterior Short Circuit and can be automatic recovery

Temperature:
Charging temperature: 0 +/- 45 C degrees
Discharging temperature: -20 +/-  60 C degrees
Storage temperature: -20 +/-  45 C degrees

Remark: The cell can be replaced by other available models such as 14430 14500 18490 18500 and so on, we can make all kinds of customized battery packs.
If you have different requirement on technique, shape and so on for the battery pack, we can made-to-order as per your request.