Ontep Series 2 - 5.5kWh 51.2V 280AH lithium battery wall product image
51.2V 280AH lithium battery wall with white box and green logo
On-Air series portable air conditioner with 51.2V 280AH lithium battery wall
51.2V 280AH Lithium Battery Wall showcasing high performance and low voltage
Lithium battery wall - 51.2V 280AH machine with blue screen
51.2V 280AH Lithium Battery Wall
(100+ rating)

51.2V 280AH Lithium Battery Wall

  • Grade A+ Cells

  • 5 Year Warranty

  • Customize This Battery

Maximize your home's energy capabilities with our high-capacity 48V Lithium Battery Wall, designed to store up to 14.3 kWh of energy. Ideal for pairing with solar power systems, this lithium battery offers a dependable and efficient solution for managing your household's energy needs.Seamless Solar Power IntegrationOur lithium battery wall is...

Tech Specs

Discharge / Charge

Exchange & Returns Policy

Battery Electrical Specs
  • Nominal Voltage:  51.2 V
  • Nominal Capacity:  280 AH
  • Energy (wH):  14,336 Wh 
  • Efficiency:  99% 
  • Resistance:  ≤30 mΩ @ 50% SOC
  • Self Discharge:  <2% per Month
  • Shipping Classification:  UN 3480, CLASS 9
Dimensions & Weight
  • Length: 38.97 In 
  • Width: 26.57 In 
  • Height: 7.87 In 
  • Weight: 282 lbs

Discharge Specs:
  • Max Cont. Discharge:  Customized
  • Peak Discharge:  Customized
  • Over Current Protection:  Customized
  • Low Voltage Protection:  44.0 V
  • Under Voltage Protection:  44 V (2.0 ±0.08 vpc) (20 ±6 ms)
  • Reconnect Voltage:  41 V (3.6 ±0.05 vpc)
  • Short Circuit Protection Time:  200-600 µs
Charging Specs:
  • Cont Charge Current:  10 A - 100 A
  • Peak Charge Current:  Customized
  • Charge Temperature:  -4 to 113 ºF (-20 to 45 ºC)
  • Storage Temperature:  23 to 95 ºF (-5 to 35 ºC)

The right of withdrawal may be exercised within 14 working days from the delivery date. 
In case the reason for the return should not be related to a malfunction/defect of the product but rather to an afterthought/error of the measure chosen, the return costs are at the buyer's expense he/she can then choose the shipping method he/she prefers. 
The refund will be free of charge, will be managed in the shortest time and will occur in any case within thirty days from the delivery date of the returned item. 
We remind you that the right of withdrawal lapses for personalized products.