Mega 5 400W Power Station – 5040Wh

The Mega 5 400W Power Station is a powerhouse LiFePO4 home battery backup system, delivering 5040Wh of reliable energy storage and a massive 4000W (700W surge) pure sine wave AC output. Designed for home use, emergency backup, RVs, and off-grid living, the Mega 5 is expandable up to an incredible 45.36kWh with extra batteries—making it the ultimate solution for powering everything from refrigerators and air conditioners to heavy-duty tools and appliances.

Enjoy lightning-fast recharging with up to 3900W dual input (210W solar + 1800W AC), fully topping up the battery in as little as 1.5 hours. The OUPES smart app provides real-time monitoring and remote control of output, input, remaining charge, and more, ensuring you always have the information you need at your fingertips.

Safety is paramount with the Mega 5: the advanced battery management system (BMS) protects against overvoltage, overcurrent, short circuit, and temperature extremes, while the pure sine wave inverter ensures stable, clean power for sensitive electronics. Replace noisy, polluting gas generators with this silent, fume-free, and maintenance-free backup power station.

Technical Specifications:

• Battery Type: LiFePO4
• Capacity: 5040Wh (expandable to 45.36kWh with 8×B5 batteries)
• AC Output: 120V/4000W (700W surge)
• DC Output: 1×Anderson, 2×DC, 1×Car Lighter
• USB Output: 2×USB-C (60W), 4×USB-A (18W)
• AC Input: 1800W max (900W slow charging)
• Solar Input: 210W max
• UPS: <20ms, 2200W
• App Control: WiFi/Bluetooth (OUPES app)
• EV Charging: Supported
• Weight: 110 lbs
• Safety: Advanced BMS, pure sine wave inverter
• Applications: Home backup, power outages, RVs, emergency, off-grid, solar

Key Features:

• Massive 4000W AC output (700W surge) for all home and heavy-duty needs
• Expandable up to 45.36kWh for ultimate energy independence
• Lightning-fast recharge: up to 3900W dual input (solar + AC)
• Real-time smart app monitoring and remote control
• Pure sine wave inverter for safe, stable power
• Advanced BMS for ultra-long battery life and safety
• Silent, fume-free, and maintenance-free operation
• Supports EV charging and seamless UPS backup

What’s in the Pack:

• 1x Mega 5 5040Wh Power Station
• AC charging cable
• Solar charging cable
• User manual

For setup and usage guidance, visit our Mobile Energy System Guide. Explore our Accessories Collection for compatible expansion batteries and solar panels, or check out our Flexible Charging Kits for integrated power solutions.

• [Smart Control] The OUPES app can tell you all that & a whole lot more, giving you all the info you need. Output, input, remaining charge, and time remaining. Allowing you to monitor & control your batteries from afar.
• [Safety First] Pure sine wave inverter delivers stable power that protects equipment from damage. Features a battery system (BMS) for ultra-long battery life to keep you safe. Monitor voltage, current, short circuit, and temp in real time.