In the business?
Check out our trade accounts or login to your account.

If you are a member of one of our partner clubs or associations please enter your access code.

01223 858414

BYD B-Box LiFePO4 48V Lithium-ion Battery - 2.56kWh





Add to Cart

With so many advantages over lead-acid batteries, maybe it's time to choose Lithium-ion batteries for your large 48V storage system? This BYD B-Box is a lithium-ion phosphate (LiFePO4) battery unit with battery management system (BMS) for use with an external inverter or charger (we highly recommend Victron Energy Multiplus or Quattro inverter chargers with these units).


  • Expandable from 2.56kWh to 80kWh
  • Additional B-Box 2.56kWh can be added at anytime giving complete flexibility depending on requirement and budget
  • Lithium-ion Phosphate Battery giving maximum safety and performance
  • CE and TUV certified BYD B-Box module meets the highest safety standards
  • Proven for use in telecom, off-grid and energy storage/self consumption applications worldwide
  • Amazing and strong 10 year warranty

Lead-acid batteries may fail prematurely due to operating in deficit mode (rarely or never fully charged) or if left partially charged or fully discharged. A lithium-ion battery does not need to be fully charged, with service life even slightly improved by partial charge. This means it is great for heavy duty usage such as liveaboard boats, motorhomes, caravans and off-grid applications.

  • Nominal voltage: 48V
  • Nominal Capacity: 2.56kWh
  • Round-trip efficiency: >95.3%
  • Ambient Temperature: -10C - +50C
  • Peak output power: 5.12kW, 30 secs
  • IP Level: IP20
  • Dimensions: 483 x 490 x 130 mm
  • Weight: 38 kg
  • Warranty: 10 years