Deep Cycle Power Tool Battery / Long Life Lithium Ion Polymer Battery 3.7 V

Deep Cycle Power Tool Battery 3.7V 370mAh Lithium Ion Polymer Battery 433030

Features

a)  High voltage

b)  Long life

c)  Very low discharge

d)  Environmental friendly

e)  Ultral safety

f)  Non menory

g)  Wide operation temperature

h)  High energy density

Parameter

Detail of 3.7V 370mAh Polymer Battery

Our Company advantage

• 7 x 24 hours service for you and prompt reply for your any questions. 
• Small order is acceptable.
• 1-2 pieces sample could be offered for testing our quality.
• Prompt delivery
• Premier custom battery pack manufacturer, 8 years exporting experience to USA and Europe market
• Our staff has more than 10 years of accumulated battery engineering and manufacturing experience
• Our R&D colleagues are from the top 2 university and scientific institution of studying lithium chemical in china.
• Strict Quality Control, we set strict QC standards include appearance, package, internal structure, electric performance etc.
• We promise to offer our customers high quality battery. Customer first culture: 80% of our customers are 5 years above long term partners. 

Quality and Guarantee

For our polymer batteries, we assure do safety test as below to guarantee good quality.

a)  Impact test, a cell is to be placed on the impact flat. A Φ15.8mm bar is to be placed on the center of the cell. A 9.1kg weight is to be dropped from a height of 610mm onto the cell, the distortion is allowed. No fire, no explosion.

b)  Crush test, a cell is to be placed on the crush flat, the axis is parallel to the crush flat, It is to be crushed between two flat surfaces. Crushing force is approximately 13 KN and hold for 1 min. No fire, no explosion.

c)  Heating test, a cell is to be heated in a circulating air oven. The temperature of the oven is to be raised at a rate of 5℃±2℃ per minute to a temperature of 130℃±2℃ and remain for 30min at that temperature before the test is discontinued. No fire, no explosion.

d)  Nail penetration Test, a cell is to be penetrated completely the center of the largest side at the speed of 20-40mm per second by a Φ3.0mm stainless steel nail. No fire, no explosion.

e)  Short-circuit test, a Cell is to be short-circuited by connecting the positive and negative terminals of the cell with copper wire having a maximum resistance load of 50mΩ. Monitor its temperature while testing, the cell is to be discharged until the cell case temperature has returned to be 10℃ less then peak temperature. No fire, no explosion.

f)  Overcharge test, a cell is discharged to cut-off voltage at CC of 0.2C. Then it is to be subjected to CC/CV power by connecting its positive & negative terminal, then set the current as 3C, the voltage as 10V, after that, charge the cell up to 10V at CC of 3C, until that last 7h at the voltage of 10V or the voltage is no more increased. No fire, no explosion.

Packaging

Production Process

Application

• Electronic products, smart mobile phone, GPS & GPRS Navigation.
• Robot vacumm cleaner, wireless vidoe doorbell.
• Video Devices: MP3/MP4/MP5, digital camera, portable DVD.
• Illuminate Devices: Miner lamp, search light, ect.
• Portable fax and printer, eyelash curler.
• Others: Electric Toys, RC models, model aircraft, backup power, mobile power supply, hand electric drill, ect.