4 pcs Tenergy Li-ion 18650 Cylindrical 3.7V 2600mAh Rechargeable Batteries (Button Top) with PCB for Flashlights and Others

Features
Li-Ion 18650 cylindrical rechargeable batteries with Internal Voltage protection PCB
Internal PCB protection (patent pending design) prevents under-voltage at 2.5V and over-voltage at 4.25V
2600mAh high capacity for longer runtime
Li-Ion offers higher energy density & lower weight than other rechargeable batteries
Manufactured under ISO9001-2000 to assure quality
Battery tested based on International Electrotechnical Commission (IEC) standard to ensure capacity, quality and lifetime

Applications
Flashlights
Lighting or other device that needs 3.7V power
Building portable power device needing high energy density and low weight & More!
NOTE: This battery is not suitable for e-cig mod.

Battery Specifications
Capacity: Nominal 2600 mAh - Minimum 2500 mAh
Dimensions: 69.5mm (H) x 19mm (D)
Weight: 50 g
Nominal Voltage: Average 3.7V
Discharge Voltage: 3.0V
Cycle Life: Over 500 cycles
Cycle Performance: 90% of initial capacity at 400 cycles

Warning
CAUTION: when working with Li-ion cells, they are very sensitive to charging characteristics and may explode if mis-handled
User should have enough knowledge on Li-Ion rechargeable batteries in charging, discharging, and assembly before use
Put the batteries in fire-proof container
Do not put batteries on wood surface or carpet when charging
Never leave battery un-attended when charging
We are not responsible for damage of any modification of the batteries in form, shape or made into packs
We are not responsible for any damage caused by misuse or mishandling of these Li-Ion batteries