Product parameter:
| Model No | ENP 25100 | ENP 51100 | ENP 51200 | ENP 4020 |
| Normal Voltage | 25.6V | 51.2V | 51.2V | 400V |
| Normal Capacity | 2.56kWh | 5.12kWh | 10.2kWh | 10.2kWh |
| Useable Capacity | 2.5kWh | 5kWh | 9.8kWh | 9.8kWh |
| Operating Voltage | 21.2V-28.4V | 43.2V-57.6V | 43.2V-57.6V | 350V-430V |
| Recommended Power Charge/Discharge current | 50A(0.5C) | 50A(0.5C) | 100A(0.5C) | 65A(0.33C) |
| Max.PowerCharge/Disch a egecurrent | 100Amax(1C) | 100Amax(1C) | 150Amax(0.75C) | 130A(0.65C) |
| Peak Output current | 110A(3S) | 110A(3S) | 200A(3S) | 140A(3S) |
| Rated DischargingPower | 2.6kW | 5kW | 7.5kW | 5kW |
| Max dischargingPower | 3KW(@SOC20%) | 5.5KW(@SOC20%) | 10KW(@SOC20%) | 7KW(@SOC30%) |
| Round-trip Efficiency | ≥96% | ≥97% | ≥96% | ≥95% |
| Dimension (W/D/H) | 450x380x93mm | 450x560x90mm | 600x110x1200mm | 1470x110x600mm |
| Weight | 20Kg | 42.8Kg | 82Kg | 90Kg |


How to save utility bill from Residential First Tech ESS?
01.Self-Consumption Optimization
High energy demand in the morning andevening butsolar generation is
most efficient during the mid-day.1STESS Batterystorage systems
balance the feedingand demands.Realize your grid independence.
02. Benefits from Peak Shaving
House:Load Shifting
Store the power during low peak and use the energyat peak-time.Save
the money which happens arisingfrom peak rate.
Transmission & Distribution: Peak shaving
Save on the electricity bills by reducing peakdemand.
03.0ptimize System Performance
The First Tech residential energy storage system(RESS) slim type
low voltage series battery packscan work with a solar energy
storage systems andoptimize system performance, absorb excessive PV
electricity and supply power for residence whenever needed.This
product can be wall mounted or floor mounted and allows for
parallel connection.
Product features:
* High energy density and efficiency
* Flexible capacity options, 2.5kWh~320kWh* Excellent safety of
LiFePo4 battery cells
* Compact size and easy installation
* Up to 10 Years of Service Life >6000Cycles
* Automatically assign any host
* Compatible with market leading single phase&three phase
inverters
* Auto balance modules with different SOC
Application Scenarios:
* Residential Applications
* Small Commercial or industrial application
* Micro off-grid systems