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Shenzhen Topband Battery Co., Ltd
A professional manufacturer of LiFePO4 battery / lithium iron phosphate, dedicated to designing, researching, manufacturing, and exporting LiFePO4 batteries( cell & pack & energy storage system) to
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New Electric Tricycle Lifepo4 Battery Pack 48V 20Ah 3 Years Warranty

New Electric Tricycle Lifepo4 Battery Pack 48V 20Ah 3 Years Warranty

Brand Name : Topband
Model Number : TB4820F-L110A
Certification : MSDS
Place of Origin : China
MOQ : 10
Price : negotiable
Payment Terms : L/C, T/T
Supply Ability : 450Mwh/year
Delivery Time : 2~3weeks for samples; 4~6weeks for mass production
Packaging Details : standard export carton
Material : lifepo4
Nominal Voltage : 51.2v
Nominal Capacity : 20ah
Communication Function : GPS
Warranty : 3 years
Internal Resistance : ≤60mΩ @1kHz AC
Weight : About 10kg
Application : Two-wheeler,Electric Tricycle battery pack
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Topband 48v 20ah rechargeable lifepo4 battery pack for electric two-wheeler


1. Feature:

  • Low temperature resistance, no fear of cold winter, -20 ℃ available
  • high capacity,Single charge can go 60km
  • Built-in GPS, real-time positioning,detect travel records and battery power
  • Long life and durability,over 1000times

2. Specification



NO


Items


Characteristics

2.1Normal capacity20Ah
Minimum capacity19Ah
2.2Nominal energy1.024kWh
2.3Nominal voltage51.2V
2.4Internal resistance≤60mΩ @1kHz AC
2.5Normal charge voltage57.6±0.5V
2.6Float charge voltage(for Standby use)54.4±0.8V
2.7Allowed MAX charge current20A
2.8Recommended charge current4A
2.9Allowed MAX discharge current30A
2.10End of discharge voltage50V~55V
2.11Pulse discharge currentWithstand the 50A/0.5s
2.12DimensionLength 325 ±2 mm
Width 185 ±2 mm
Height 180 ±2 mm
2.13Weight (No accessories)About: 10Kg
2.14

Operation temperature

Charge0~43℃
Discharge-20~60℃
2.15Self-discharge rate≤3%/Month; ≤15%/ year
2.16

Storage environment

≤1month-20~+60℃,5~75%RH
≥3month-10~+43℃,5~75%RH

Recommend environment

15~33℃,5~75%RH
3. Dimension:

4. Circuit Protection



No


Item


Content


Criterion

4.1

Over charge


Over-charge protection for each cell

3.65±0.03V

Over-charge release for each cell

3.34±0.03V

Over-charge release method


Under the release voltage

4.2

Over discharge


Over-discharge protection each cell

2.50±0.03V

Over-discharge release for each cell

2.90±0.03V

Over-discharge release method


Charging

4.3

Over current


Charge over current protection

34A~36A,delay time 0.5~1.5s

Charge over current release


Discharge or auto release after 1min


Discharge over current protection

34A~36A,delay time 0.5~1.5s

Discharge over current release


Charge or auto release after 1min


Short circuit protection

4.4

Temperature


Charge over temperature protection


Protect@65±3℃; Release@50±3℃;


Charge under temperature protection


Protect@-5±3℃; Release@0±3℃


Discharge over temperature protection


Protect@65±3℃; Release@50±3℃;


Discharge under temperature protection


Protect@-20±3℃; Release@-15±3℃

4.5MOS

MOSFET over temperature protection


Protect@100±10℃; Release@85±10℃;


5.Transport & Store


The battery need to be charged every 6 months if out of use


No fall down, no pile up over 6 layers, and keep face up.


6. Application



Product Tags:

lifepo4 battery pack

      

lithium iron phosphate cells

      
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