Energy Storage System ESS1.0 Manual
2.
Technical data
2.1.
Technical characteristics
General characteristics
Nominal energy (kWh)
2,7
Nominal voltage (V)
25,2
Final charging voltage (V)
29
Final discharging voltage (V)
23,5
Maximum capacity (Ah)
108
Maximum discharge rate (A)
180
Maximum discharge power (W)
4500
Weight (kg)
24,3
Dimensions (mm)
577,5 x 218,5 x 253,5
Volume (L)
32
Battery chemistry
Li-Ion NMC
Battery composition
Number of cells
336
Cell housing
Steel cylinder safety cell
Capacity per cell (Ah)
2.25
Nominal voltage per cell (V)
3.6
Cell connection
7S-48P
Performance data
Energy density (Weight)
110,5 Wh/kg
Energy density (Volume)
84 Wh/l
Power density (Weight)
180 W/kg
Power density (Volume)
141 W/l
Lifetime data
Cycle lifetime
4000
cycles* or
5
years
Average capacity loss per year
Ca. 4% at 25 °C ambient temperature
Additional information
Cell operating temperature
-20° to +60 °C
Cell charging temperature
0° to +55 °C
Storage temperature
-30° to +55 °C (10° to 25°C
recommended)
Protection class
IP 67
* Estimated cycles number with 40Amps charge/discharge
