LED light medical back up power cylindrical battery pack

Bike head light Rechargeable battery 18650 7.4V 8800mah 2S4P

Specification:

 1)Nominal voltage : 7.4V 

 2) Typical capacity  8800mAh 

 3)  Innner impedance  ≤180mΩ

4) Discharge cut off voltage :5.5V 

5) Charge protection voltage :8.4V 

6) Max charge current : 0.5C charge current  

7) Max discharge current : 2C discharge current 

 8) Charing method CC-CV 

9) working temperature : charge : -20~45°C,45~85%RH Discharge: -20~60°C,45~85%RH

Features :

  1. 100% A grade cell with real capacity 

  2. We will guarantee the cycle life of our battery should not less than 500 times 

  3. Excellent BMS protection functions which could protect the battery from any damages come from over-charge ,over-discharge ,short-circuit 

      even reverse connection protection etc .

  4. We could design a different type battery pack in according to different application purpose : Such as High temperature application ,Low Temperature 

    Application ,High discharge rate current application  etc 

  5. Application : our cylindrical battery pack could be widely applied on such areas :Electric tool battery pack ,UPS back-up power system,loud speaker device 

 Bluetooth ,MP3 ,MP4 ,medical device  ,PDA , electric vehicle , POS Machine, Alarm Monitor etc 

Model list of single cylindrical cell :