Lithium Iron Phosphate (LFP) cell
Lithium Iron Phosphate (LFP) cell guarantees safety and reliability

BatteriesModel VOLTRONIC-ENERGYCUBE-305
Discover Voltronic Power's EnergyCube 305 with HVC 05 controller and HVB 05 battery module, offering 15kWh total capacity (3 x 5120Wh modules) for efficient energy storage.
What sets the VOLTRONIC-ENERGYCUBE-305 apart from the other 3 models in the family: Numbers of Modules 3; Nominal Voltage 307.2VDC; Full Charge Voltage (FC) 336VDC; Full Discharge Voltage (FD) 268.8VDC; Typical Energy 15KWH; Complete Set Dimension, D x W x H (mm) 220 x 630 x 1280 mm; Complete Set Net Weight (Kg) 169.
In stock
Lithium Iron Phosphate (LFP) cell guarantees safety and reliability
Parallel operation up to 5 units for energy expansion
Suitable for wide range of solar inverters with high-voltage
Maximum lifecycle of 8000 cycles for 60% DOD with >50% capacity
The Voltronic 15 kWh 307.2 V Solar Battery EnergyCube 305 is an ESS Battery with a capacity of 50 Ah, making it a dependable choice for solar and backup energy storage. The unit measures 220 x 630 x 320 and weighs 51.3. It is rated to operate across 0°C~55°C. It supports a maximum discharge current of 60A and a cycle life of 6000 Cycles @>80% capacity. The Voltronic 15 kWh 307.2 V Solar Battery EnergyCube 305 is certified to IEC 62619 and UN38.3 and is backed by a 2-year manufacturer warranty from Voltronic Power. Its published specifications also list Controller Box Module of HVC 05, Single Battery Module of HVB 05 (102.4V/50AH, 5120Wh) and Numbers of Modules of 3.
Specifications last updated 23 July 2026
| Controller Box Module | HVC 05 |
|---|---|
| Single Battery Module | HVB 05 (102.4V/50AH, 5120Wh) |
| Numbers of Modules | 3 |
| Nominal Voltage | 307.2VDC |
| Full Charge Voltage (FC) | 336VDC |
| Full Discharge Voltage (FD) | 268.8VDC |
| Typical Capacity | 50Ah |
| Typical Energy | 15KWH |
| Max Continuous Discharging Current | 60A |
| Max Peak Discharging Current | 75A |
| Protection | BMS & Circuit Breaker |
|---|---|
| Charge Current | 10A |
| Maximum Charge Current | 25A |
| Standard Charge Method | 0.2C CC (Constant current) charge to FC, CV (Constant voltage FC) charge till charge current decline to <0.05C |
| Cycle Life | 6000 Cycles @>80% capacity |
| Inner Resistance | ≤20m ohm |
| Operating Temperature - Charge | 0°C~55°C |
| Operating Temperature - Discharge | 0°C~55°C |
| Compliance Safety | IEC 62619, UN38.3 |
| Single Battery Module Dimension, D x W x H (mm) | 220 x 630 x 320 |
|---|---|
| Single Battery Module Net Weight (Kg) | 51.3 |
| Controller Box Dimension, D x W x H (mm) | 220 x 630 x 210 |
| Controller Box Net Weight (Kg) | 9.95 |
| Complete Set Dimension, D x W x H (mm) | 220 x 630 x 1280 |
| Complete Set Net Weight (Kg) | 169 |
The Voltronic 15 kWh 307.2 V Solar Battery EnergyCube 305 has a nominal voltage of 307.2 VDC.
The Voltronic 15 kWh 307.2 V Solar Battery EnergyCube 305 measures 220 x 630 x 320 and weighs 51.3.
The Voltronic 15 kWh 307.2 V Solar Battery EnergyCube 305 operates across 0°C~55°C.
The Voltronic 15 kWh 307.2 V Solar Battery EnergyCube 305 has a maximum charge current of 60A.
The Voltronic 15 kWh 307.2 V Solar Battery EnergyCube 305 has a typical capacity of 50 Ah and a cycle life of 6000 Cycles @>80% capacity.
The Voltronic 15 kWh 307.2 V Solar Battery EnergyCube 305 has a full charge voltage of 336 VDC and a full discharge voltage of 268.8 VDC.
The Voltronic 15 kWh 307.2 V Solar Battery EnergyCube 305 supports a maximum discharging current of 60A.
The Voltronic 15 kWh 307.2 V Solar Battery EnergyCube 305 is certified to IEC 62619 and UN38.3, meeting recognised international standards for safety and performance.
The Voltronic 15 kWh 307.2 V Solar Battery EnergyCube 305 is backed by a 2-year manufacturer warranty from Voltronic Power.