Specifications

18650 lithium rechargeable battery
1.more tahn 500 times sysle life
2. high voltage, pollution-free
3. no memory effect

Description of 18650 lithium rechargeable battery 
Cell: 18650 (High quality Dison Top Brand )
Capacity: 2200mAh
Voltage: 3.7V 
Pack: PVC Shrink tube
Prewired: 22 AWG wire with connector(as per customer's requirement)
Dimensions: (HxD) 65mm x18mm
Weight: 45g (About)

Technique of 18650 lithium rechargeable battery

Charging Voltage: 4.2V CC/CV
Maximal continuous charging current: 2.5A (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 of LiFePO4 rechargeable battery
Charging temperature: 0 — 45 C degrees
Discharging temperature: -20 — 60 C degrees
Storage temperature: -20 — 30 C degrees