Battery EVO 22kVA Walrus G3 Pro Whole Home Power Systems

Reliable Energy. Scalable Backup. Smart Power Control.

Experience energy independence with the Walrus G3 Pro, a powerful, all-in-one whole home backup solution designed to meet the demands of both off-grid and grid-tied systems. Whether you're preparing for power outages, lowering your utility bills, or going completely off-grid, the G3 Pro delivers dependable performance, intelligent control, and modular expansion.

Built around a high-output 22kVA inverter and integrated 11kW solar charger, the Walrus G3 Pro is engineered for seamless backup power and solar integration. With real-time Wi-Fi monitoring and smart charge scheduling, you’re always in control — even from your phone.

Why Choose the Walrus G3 Pro

Seamless Whole Home Backup
The 22kVA inverter provides enough continuous power to keep your entire home or business running — including HVAC systems, refrigerators, medical devices, and high-demand electronics — without interruption.

Expandable Battery Capacity
Choose from 44kWh or 66kWh configurations based on your energy needs. Easily scale with extension packs for longer runtime or larger energy storage goals.

Compatible With or Without Solar
Connect up to 11kW of solar PV directly for clean, renewable power. Already have grid-tied solar? The G3 Pro stores excess energy. No solar? It works as a full-capacity battery backup using grid or generator input.

Automatic Blackout Protection
Built-in UPS functionality ensures immediate power during grid failure. No manual switching, no downtime — just instant backup.

Flexible Charging Options
Recharge via solar, grid power, or a 240V gas/diesel generator. A dual MPPT charge controller (5500W x 2) provides efficient energy capture across a wide PV voltage range (90–230V).

Smart Monitoring and Scheduling
Monitor your system remotely with built-in Wi-Fi and a 7” touchscreen display. Set custom charge/discharge schedules to maximize efficiency and reduce costs.

Engineered for Harsh Environments
Industrial-grade build with optimal temperature protections. Operating and charging temperatures range from -4°F to 131°F for year-round reliability.

Peace of Mind, Made in California
All Walrus G3 Pro systems are assembled and shipped from California with a 10-year battery warranty and lifetime technical support.

Power your future with confidence — explore your Walrus G3 Pro package today.

Specifications

Battery EVO WALRUS G3 PRO Specifications

System Voltage: AC110/220V
Battery Chemistry: NMC
Nominal Battery Voltage: 66V
Battery Capacity: 44kWh or 66kWh
Ah Capacity: 660Ah (44kWh) / 990Ah (66kWh)
Cell Configuration: 18S2P
Max Continuous Discharge Power: 22kVA
Max Charge Voltage: 75.6V
Operating Voltage Range: 54V – 74.7V
Max Charge Current: 50A AC
Max Discharge Peak Current: 75A AC
Charge Controllers: MPPT, 5500W x 2
Charging Temperature: -4°F to 131°F
Discharging Temperature: -4°F to 131°F
Dimensions: 15.4" D x 24.41" W x 36.24" H
Weight: 441 lbs (200.2 kg)
Safety Features: 300A Fuse and Advanced BMS with voltage, temperature, and current protections

Custom Package Options Available

Option 1: Walrus G3 Pro 44kWh
Perfect for moderate energy demands or compact setups.
Includes:
G3 22kVA Inverter (1x)
G3 Battery Extension Packs (2x)
PV to BE175 Cables (2x)
10 Ft 50A RV Extension Cable (1x)
BE175 to BE175 Extension Cables (2x)

Option 2: Walrus G3 Pro 66kWh
For full home energy independence and longer backup duration.
Includes:
G3 22kVA Inverter (1x)
G3 Battery Extension Packs (3x)
PV to BE175 Cables (2x)
10 Ft 50A RV Extension Cable (1x)
BE175 to BE175 Extension Cables (3x)

Option 3: Walrus G3 Pro 44kWh + 4400W Solar Kit
Ideal for daily solar energy usage and nighttime backup.
Includes:
G3 22kVA Inverter (1x)
G3 Battery Extension Packs (2x)
PV to BE175 Cables (2x)
10 Ft 50A RV Extension Cable (1x)
BE175 to BE175 Extension Cables (2x)
550W Solar Panels (8x)

Option 4: Walrus G3 Pro 66kWh + 8800W Solar Kit
Maximum autonomy for off-grid living or large energy consumers.
Includes:
G3 22kVA Inverter (1x)
G3 Battery Extension Packs (3x)
PV to BE175 Cables (2x)
10 Ft 50A RV Extension Cable (1x)
BE175 to BE175 Extension Cables (3x)
550W Solar Panels (16x)