3.7v 4000mah lipo battery

Specifications

3.7v rechargeable 626090 4000mAh lipo battery pack  for tablet pc/power bank/GPS/PDA and other digital devices

Specification:

Products show:

Application:

*Portable electronic devices

*Bluetooth headset,mobile phone,mp3/mp4 player,GPS

*Electronic cigarette,E-book,DVD

*Tablet pc,PDA,mini speaker

*DVD,portable DVD

Main Features:

1)Low internal resistance,fast charger

2)Parameter of protection IC:over-charge protection voltage 4.20V±0.05V

3)Over-discharge protection voltage:2.7V±0.1V

4)Over-current protection:3.0±1.0A(2.7V-4.25V)

5)Temperature of discharge:-20--+60°c

6)High energy density

7)Long cyclelife

5)Environment friendly

6)No memory effect

7)Capacity,resistance,voltage,platform time consistency is good

8)High safety,over-charge,over-discharge,over-current,short circuit protection circuit

9)Low self-discharge

10)Light weight

11)1.2m drop testing passed

12)Thickness can be adjusted white the width and length keep the same

Cycle life test

Carry out 500cycle

Charging/Discharging in the below condition.

*Charge:Standard Charge, per 3.3.1

*Discharge:0.5 C5A to 3.0 V

*Rest Time between charge/discharge:30min.

*Temperature:20±5°C

Leakage Proof

After full charge with standard charge, store at 60±3°C, 60±10%RH for 1 month no leakage(visiual inspection)

Vibration Test

After standard charging, fixed the cell to vibration table and subjected to vibration cycling that the frequency is to be varied at the rate of 1Hz per minute between 10Hz an 55Hz, the excursion of the vibration is 1.6mm. The cell shall be vibrated for 30 minutes per axis of XYZ axes.

Drop Test

The cell is to be dropped from a height of 1 meter twice onto concrete ground

Certificates and prduction process:

About US:

1.Products line:Shenzhen Delong Energy Technology Co.,Ltd isa professional manufacture,specilized in power bank,li-polymer battery,Electronic scootor battery,heating clothing battery and other related products

2.OEM/ODM service:solution design,can produce different shape and capacity lithium polymer battery

3.Payment:30% deposit for volume production,and balance before delivery

4.Main markets:40% in domestic,60% in oversea markets

5.We are 100% confident that our quality,price and service will satisfy you