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Technical data

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The B-Box
  • Lithium Iron Phosphate (LiFePO ) Battery: Maximum safety, cycle stability, long life, and efficiency of discharge
  • Battery pack compatible with major battery inverters
  • It can work off grid and as backup as the battery power is equivalent to a C-rate of 1
  • Flexible combination of capacity.
  • Parallel connection of up to 32 modules
  • Modular design simplifies transportation and installation
  • Support for RS485 / CAN communication
  • RJ45 interface for communication with a master control unit
  • Certified BYD Battery Module
  • Simply retrofitted
  • Emergency switch
  • Ideal for UK home solar power self consumption applications.
Datasheet B-Box 13.8
Battery Type Iron-Phosphate-Battery B-Plus 13.8
Battery Module B-Plus 12.8 (C14 51.2V 270Ah)
Maximum output power 12.8 kW
Nominal Capacity 13.8 kWh (0.2C Charging & Discharging at +25°C)
Usable capacity 13.8 kWh
Efficiency >95.3% (Under official efficiency measurement guidelines)
Nominal Voltage 51.2V
Working voltage 44.8V-57.6V
BMS with cell balancing Yes
Interfaces RS485 / CAN-Bus
Dimensions (B*H*T) in mm 600* 800* 510
Net weight 175kg
Cycle life >6000 [+25°C,0.4C]
Warranty 10 years (1 full cycle per day)
Working temperature range -10°C~+50°C
Storage temperature -20°C~+55°C
Transportation standards UN3480 & UN38.3
Inactive storage time 12 months at +25°C;   6 months at +35°C;   3 months at +45°C
EMV testing EN 61000  4.2, 4.3, 4.5, 4.6 / EN55022
Security audits UL1642 for the cell;  and UL1973 for the battery module, IEC62619
IP level IP20
Remarks  It is recommended to charge the battery at least once every 6 months
Scalability Yes, up to 441,2 kWh
Datasheet B-Box 2.5-10.0
  B-Box 2.5 B-Box 5.0 B-Box 7.5 B-Box 10.0
Battery Type Iron-Phosphate-Battery
Battery module: B-Plus 2.5 1 x  2 x  3 x  4 x 
Maximum output power  2.5 kW  5 kW  7.5 kW  10 kW
Nominal capacity (0.2C Charge and discharge at +25°C) 2.56 kWh 5.12 kWh 7.68 kWh 10.24 kWh
Net capacity 2.45 kWh 4.9 kWh 7.35 kWh 9.8 kWh
Efficiency >95.3% (Under official efficiency measurement guidelines)
Net voltage 51.2V
Working voltage 44.8V-57.6V
BMS with cell balancing Yes
Interfaces RS485 / CAN-Bus
Dimensions (B*H*T) in mm 600* 883* 510
Net weight 79 kg 113 kg 146 kg 180 kg
Dimensions of the B-Plus 2.5 (B*H*T) in mm 482.6* 130* 489.5
Net weight of the B-Plus 2.5 34 kg
Cycle life >6000 [+25°C, 0.4C]
Warranty 10 years (1 full cycle per day)
Working temperature -10°C~+50°C
Storage temperature -20°C~+55°C
Transport standards UN3480 & UN38.3
Inactive storage 12 Months at +25°C;   6 Months at +35°C;   3 Months at +45°C
EMV testing EN 61000  4.2, 4.3, 4.5, 4.6 / EN55022
Security certification UL1642 for the cell; CE and TÜV for the battery module
IP level IP20 (IP55 available upon request)
Anmerkungen  It is recommended to charge the battery at least once every 6 months
Output power for a B-Box 2.5 should not exceed 2.5Kw
Scalability / / / Yes, up to 80 kWh
Datasheet B-Box HV
  H6.4 H7.7 H9 H11.5
Battery Type Iron-Phosphate-Battery
Battery module: B-Plus H 5 x  6 x  7 x  9 x 
Maximum output power  6.4 kW  7.7 kW  9.0 kW  11.5 kW
Net capacity (0.2C Charge and discharge at +25°C) 6.4 kWh 7.7 kWh 9.0 kWh 11.5 kWh
Peak Power 12.8 kWh 15.4 kWh 18.0 kWh 23.0 kWh
Efficiency >95.3% (Under official efficiency measurement guidelines)
Nominal voltage 256V-460V (Each module in series adds 51.2V)
Working voltage 200V-500V
BMS with cell balancing Yes
Interfaces Wireless between modules / CAN to inverter and Ethernet remote access
Dimensions (B*H*T) in mm 600* 883* 510
Net weight 148 kg 174 kg 200 kg 252 kg
Dimensions of the B-Box HV (B*H*T) in mm From 580* 899* 380 to 580*1379*380
Net weight of the B-Plus HV 22 kg
Cycle life >6000 [+25°C, 0.4C]
Warranty 10 years (1 full cycle per day)
Working temperature -10°C~+50°C
Storage temperature -20°C~+55°C
Transport standards UN3480 & UN38.3
Inactive storage 12 Months at +25°C;   6 Months at +35°C;   3 Months at +45°C
EMV testing EN 61000  4.2, 4.3, 4.5, 4.6 / EN55022
Security certification UL1642 for the cell; CE and TÜV for the battery module
IP level IP55
Anmerkungen  It is recommended to charge the battery at least once every 6 months
Output power up to 2C for 5min
Scalability Yes, up to 5 units in parallel Yes, up to 5 units in parallel Yes, up to 5 units in parallel Yes, up to 5 units in parallel