3.7V Li-ion rechargeable battery made of 1 PCS of high quality Cylindrical 18650 cell with PCB and polyswitch for full protection
 
Description:
Cell: 18650 (High quality Panasonic/SANYO/Samsung/LG/Chinese A Grade or as per special requirement )
Capacity: 2900mAh
Voltage: 3.7V
Battery Pack: 1S 3.7V 2.9AH
Pack: PVC Shrink tube
Prewired: 22 AWG wire with connector(as per customer's requirement)
Dimensions: (HxD) 68mm X18mm
Weight: 60g (About)

Technique:
Charging Voltage: 4.2V CC/CV
Maximal continuous discharging current: 20A
Over charge detection voltage: 4.28V ± 0.025V
Over charge release voltage: 4.08 ± 0.025V
Over discharge detection voltage: 2.4V ± 0.05V
Over discharge release voltage: 3.0V ± 0.05V
Over charge protection
Over discharge protection
Over Current protection

Short Protection:
Exterior Short Circuit and can be automatic recovery
Low Interior resistance

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.