Guangzhou Freego Digital Technology Co., Ltd.
Main products:Battery,Battery Charger,Bicycle Battery
Products
Contact Us
  • Contact Person : Ms. Li Mandy
  • Company Name : Guangzhou Freego Digital Technology Co., Ltd.
  • Tel : 86-20-22077307
  • Fax : 86-20-22307350
  • Address : Guangdong,Guangzhou,Room 201, Second floor, No. 59 of Road Taoyuan, Tianhe district
  • Country/Region : China
  • Zip : 510660

lithium ion battery 48v for electric bicycle kit

lithium ion battery 48v for electric bicycle kit
Product Detailed
1. Lifepo4 lifespan >2000 cycle lifes 2. Size: 136*89*365mm, weight: 6.2kg 3. CE, UN38.3, ROHS, MSDS 4. 1year warranty

Type

48V Lifepo4 battery Pack

1. Basic Characteristics

Weight

≤6.2kg

 Dimension(T*W*H)

136*89*365mm

Working temperature

Charge Temperature

0~45°C

Discharge Temperature

-20~65°C

Retention of charge (store in one month)

≥95%

2. Technical Data

Rated Voltage

48V 

Rated Capacity C1

        ≥ 10Ah

 Battery Resistance

 ≤4 mΩ

Charge

Way of Charge

CC/CV(Constant Current;Constant Voltage)

Standard Charge Current

2A

Max Charge Current  

10A

Max Charge Voltage 

54.6V

Cell OverCharge Protection Voltage

54.6V

Discharge

Standard Discharge Current

10A  can be customized

Max Discharge Current

20A  can be customized

Discharge Cut-off Voltage

35.75V

Cell Overdischarge Protection Voltage

35.75V

Ratio Discharge

1C

>96%C1

2C

>93%C1

3C

>90%C1

Cycle Life

2000 Cycles

3. Safety Test

Short Circuit Safety Test

No fire, No explosion

Overcharge Safety Test

Crush Safety Test

Needling Safety Test

Extrusion Safety Test

130°C High Temperature Safety Test

QC Standard for Cells:

1. In good light,the surface should be smooth and dry,without crack,score,dirt etc.,the identification 2. should be clear and correct.

3. There should be clear polar identifications,the identification should be correct check by voltage meter.

4. Over discharge--no fire,no explosion,no leakage

5. Over charge--no fire,no explosion

6. Short circuit--no fire,no explosion

QC Standard for Battery Pack:

1. Check all connection included cell to cell, data wires between cells and BMS, BMS to the cell, BMS 2. to the discharging port and charging port

3. 100% capacity at 0.2C discharging and in normal temperature 20°c

4. >98% capacitive at 1.5C discharging and in normal temperature 20°c

5. >95% capacity at normal discharging in very high temperature 55°c

6. >50% capacity at normal discharging in very low temperature -20°c

7. Over-discharging testing

8. Over-charging testing

storage:

1. Use at temperature below 40°C,charge fully prior to long storage periods or if it has been stored for more than three months

2. If you find any single battery voltage is under 2V at room temperature,the battery has been over-discharged or is self-discharging due to some defect/parasitic load. Discontinue use until the fault can be corrected and the battery be recharged

3. Store in an open,well ventilated,dry,clean area, between -20°C to 40°C for maximum life. self-discharge will accelerated at higher temperature

4. Don’t expose the battery to extremes of temperature over 60°C,directly to sources of heat, direct sunlight or moisture and/or rain

lithium ion battery 48v for electric bicycle kit



Copyright Notice @ 2008-2012 ECVERY Limited and/or its subsidiaries and licensors. All rights reserved.