4 PCS Tenergy Li-Ion 18650 Cylindrical 3.7V 2600mAh Rechargeable Batteries w/ PCB (Button Top)

Features and Benefits:

* 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!

Product 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
* The battery is/are not suitable for e-cig mod.
* 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