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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: Topband
  • Model Number: TB-2440F
  • Usage: Energy storage,Led street light,solar system etc
  • Voltage: 24V
  • Sealed Type: Sealed
  • Maintenance Type: General
  • Size: 327*172*217mm
  • Weight: 12kg
  • Nominal Capacity: 40Ah
  • Green energy: Zero Emission
  • Color: blue PVC/SLA case
  • warranty: 2 years

Packaging & Delivery

Packaging Details soft pvc,plastic case,iron case or as your own request
Delivery Time Within 25 days after payment


2 year warranty
Smaller and Lighter
High performance
1500-1800 cycle
No memory effect


Technical Data:

Volatge: 24V   

Capacity: 40Ah 

Discharge current: 2C

Weight: 12kg

Size (Dimension):327*172*217mm    

Normal working temperature: - 20°C ~60°C, can safe work at 70°C


1. Green: Non-Toxic, comfort to RoHS.

2. Long cycle life: > 2000 cycles, while Sealed Lead Acid batteries only 750 cycles and NiMh batteries only 500 cycles)

3. Safety

The safest battery in the world till now, which does not burn with 30V charge voltage and it does not explore when you puncture the battery. UL approved.

4. Light weight and smaller dimension

The dimension is smallest and the weight is lightest when compare with other battery. 1/3 weight of SLA, 65% weight of NIMH.

5. Great capacity and more powerful, rechargeable battery

High discharge current, 1C continuous, 3C pulse for normal cells and 20 C for special design

We can install many single cells in series and in parallel and it can fully discharge

6. Good thermal stability: - 20°C to 60°C

7. Back fast charge, good consistence, no memory effect, can equip battery charger.

Can be recharged anytime, no reduction of the capacity

7. Widely application, customize solutions, mass production, OEM/ODM/buyer label provided, factory passed TS 16949, ISO 9001:2008.


Battery characteristic






Battery Type

Prismatic LiFePO4 battery

Nominal Voltage


Nominal Capacity


Minimum Capacity


Internal Impedance


Nominal Charge Voltage


Discharge cut off Voltage


Max .Charge Current


Max Continue .Discharge Current


Charge method

CC/CV(constant current/constant voltage)

Cycle life

After 2000cycle,capacity more than 80% nominal capacity





Operating Temperature

Charge:       0°C--45°C

Discharge:   -10°C--60°C

Storage Temperature

5°C-35°C(suggest 25±5°C)

Relative Humidity


Relative Humidity


Protection board:To protect the battery from overcharge,overdischarge and overheat.



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