Tenergy Li-Ion 18650 3.7V 4400mAh Rechargeable Battery Module w/ PCB Protection

Features and Benefits:

• High quality 3.7 V Li-Ion rechargeable battery pack.
• Made of 2 2200mAh cylindrical 18650 cells with PCB and poly switch for full protection.
• Light weight and higher energy density than any rechargeable battery.
• No memory effect and rechargeable.
• Longer storage life than NiMH battery.
• You can build 7.4V/4.4Ah Li-Ion battery pack by connecting two or three PCB ready battery module in parallel. 
• Built-in IC chip will prevent battery pack from over charge and over discharge and prolongs battery life.
• Perfect for building 3.7V battery pack for bike lighting, RC toy (cars and airplanes), robots, cameras, DVD external battery.
• Recommend our Smart  Li-Ion Battery  Charger to charge the battery pack  (With charging volatge set at 4.2V on the charger).

Technical Specifications:

Capacity 4400mAh Voltage 3.7V Dimensions 63 x 35 x 17 mm (LxWxT) Weight 3.3 oz Max. charge current 6 A Max. discharge current 10A Cut off voltage

 Over-Charge Protection: 4.35V  Over-DisCharge Protection: 2.4V

Warnings:

• 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.
• We are not responsible for any damage caused by misuse or mishandling of these Li-Ion batteries.
• Strongly suggest that you use our smart Li-Ion battery charger to recharge the battery pack.  
• Never use conventional DC adapter to charge the battery module) We are NOT responsible for any damage that is caused by the misuse of the Li-Ion Battery.
• Please don't make parallel connection with more than  two modules to avoid uneven charge.