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Energy Power Unit B20KWH (B20K)

Applications

Enerthium BigBox B20K square

The B20K is a 20KWh energy storage system that safely stores power from solar panels (PV) or AC mains for reuse when needed.

Self-heating option for Canadian climates.

Applications

  • Solar power backup
  • Residential & Commercial
  • Mini-grid systems

 

Electrical specifications
Nominal Voltage (V) :51.2
Nominal Capacity (Ah) :400
Working Voltage Range (VDC) :42-58.1
Internal resistance (mΩ)≤32 @ 50% SOC
Peak Current (A)450A@2s
Efficiency>95%
Self Discharge<3% Per Month
Short Circuit Protection (us)200-600
Battery capacity (kWh)20.48
Charging Specifications
Recommended charge current (A)160
Maximum charge current (A)200
Charge Target Voltage (V)58.1
Charge Protection voltage (V)58.4
Discharging Specifications
Recommended discharge current (A)160
Maximum discharge current (A)200
Continuous Discharge (KW)10
Discharge Target Voltage (V)42
Discharge protection (V)41
Mechanical Specifications
Dimensions : (L*W*H)1200 X 900 x 400 (mm)
Weight (Kg)125 ± 2
Case Material :Sheet metal
Cell Type ChemistryLiFePo4
Working Environment
Charge recommended temperature (°C)5 ~ 30
Discharge recommended temperature (°C)5 ~ 35
Working temperature(°C)0 ~ 45
Storage temperature (°C)-10 ~ 55

Our B20K Energy Storage System is built robust using galvanized steel panels to protect against corrosion. The four castor wheels can be removed to install directly to a flat surface.

Battery Technology

The B20K incorporates four banks of sixteen Lithium Iron Phosphate (LiFePO4) batteries, providing efficient storage, high energy output and long life.

Battery Management System (BMS)

Our B20K integrates BMS controllers to efficiently manage the charging/discharging and health of the internal batteries. They can be connected to an external Inverter for monitoring purposes and data read out.

Parallel / series Connections

The B20K battery does not support series connec- tions however, up to four units can be connected in parallel providing up to 80 KWh of stored energy.

Warranty

Enerthium warranties our B20K for 3 years. The internal LiFePO4 batteries can be cycled (charged/discharged) 3000 to 5000 times and providing a lifetime of 7-10 years under normal use, when cycled daily.

 

APPLIANCE

HOURLY CONSUMPTION (KWH)

HOURS OF USE

 

DAYS OF USE

Fridge

0.13

153

6

Oven

2.3

8

0.3

Freezer

0.07

285

11

TV

0.18

111

4

Laptop

0.05

400

16

Note 1. CAUTION, do not exceed maximum charging voltage.