WALRUS G3 12K INV. 22 kWh with Solar Accessories Kit
Overview and primary applications
The WALRUS G3 12K INV. 22 kWh is a compact, high‑performance energy storage system engineered for home use or light commercial energy back‑up and management. With a built‑in 12.5 kW inverter and a 22 kWh lithium pack, it delivers reliable power for critical loads while enabling efficient energy management. The unit’s reduced footprint and mobility features support flexible placement in tight spaces, making it suitable for retrofit or new installations where space is at a premium.
Performance and electrical specifications
- Chemistry: NMC; Capacity: 22 kWh; Ah: 330
- Nominal system voltage: 66V; System voltage support: AC110/220V dual voltage
- Cell configuration: 18S2P
- Max continuous discharge current: 250A; Max continuous power: 12.5 kVA; Max discharge peak current: 300A
- Max charge current: 250A; MPPT charge controller: 5500W
- Charging voltage range: 73V–74.7V; Max charge voltage: 75.6V
- Operating voltage range: 54V–74.7V; Suggested low voltage cutoff: 54V–60V
- Storage temperature range: -5°C to 35°C (max 6 months); Discharge temperature: -20°C to 55°C
- Optimal discharge temperature: 15°C–35°C; Weight: 394 lb (178.7 kg); Dimensions: 35.06 in H × 24.41 in W × 15.4 in D
Safety features and monitoring
- Battery Management System with over/under voltage, over current, and over/under temperature protections
- Fuse protection (300A)
- Color touchscreen for real-time system monitoring
Included accessories and solar integration
- 1 × WALRUS G3 12K INV. 22 kWh AC110/220V 72N-S
- PV to BE175 Cable-S
- 50 Amp 10 Ft RV Extension Cable-S × 2
- 550W Solar Panel-S × 8
Installation, operation, and maintenance considerations
Designed for easy mobility with built‑in wheels and a compact footprint. The bundle supplies a complete solar integration path, including the eight 550W solar panels and the PV cable set to enable PV charging alongside the 66V nominal system. The unit supports AC110/220V dual voltage and includes a 12.5 kW inverter to accommodate a range of residential and light commercial workloads. Routine maintenance guidance is not specified in the provided documentation, but the integrated BMS and touchscreen facilitate ongoing monitoring of health and status.
Warranty and service information
10‑year warranty on the batteries included in this bundle.
WALRUS G3 12K INV. 22 kWh with Solar Accessories Kit
The BatteryEVO 22kWh WALRUS G3 is a compact, high-performance storage system with a built-in 12.5k inverter, perfect for home or light commercial energy setups. Its reduced footprint allows for flexible placement in smaller spaces. Designed for modern users, the system supports efficient energy backup and management.
➤ Color touchscreen for real-time system monitoring
➤ Built-in wheels for easy mobility
➤ AC110/220V dual voltage support
➤ 10-year warranty batteries
Included in this bundle:
- 1.
WALRUS G3 12K INV. 22 kWh AC110/220V 72N-S (x1) - 2.
PV to BE175 Cable-S (x1) - 3.
50 Amp 10 Ft RV Extension Cable-S (x2) - 4.
550W Solar Panel-S (x8)
- SKU:K0300
- System Voltage:AC110/220V
- Nominal Voltage:66V
- Chemistry:NMC
- kWh Capacity:22 kWh
- Ah Capacity:330Ah
- Charging Voltage:73V - 74.7V
- Max Charge Voltage:75.6V
- Operating Voltage Range:54V - 74.7V
- Suggested Low Voltage Cutoff:54V - 60V