BLUETTI 2× EP800 + 4× B500 Home Battery Backup

The BLUETTI 2× EP800 + 4× B500 is a high-capacity residential energy storage system designed to provide dependable backup power for larger homes, extended outages, and off-grid applications. The configuration combines two EP800 off-grid inverters with four B500 LiFePO₄ battery modules, providing approximately 19.8kWh of total storage capacity and up to 15,200W of backup output.

Key Features

• 19.8kWh total battery capacity — four B500 batteries at 4.96kWh each.
• Up to 15,200W backup output with the dual-EP800 configuration.
• 120V/240V split-phase power for a broad range of residential loads.
• Up to 18,000W solar input across the two EP800 units.
• LiFePO₄ battery chemistry for enhanced safety and long-term durability.
• 90% recommended depth of discharge for the B500 batteries.
• NEMA 4X/IP65 protection, allowing appropriate indoor or outdoor installation.
• Wi-Fi and Bluetooth connectivity through the BLUETTI app for monitoring and system management.
• Fast backup transfer with EP800 switching to backup power in under 20ms.
• 10-year warranty on the EP800 system and B500 batteries.

Battery Configuration

Ideal For

• Whole-home backup power
• Extended power outages
• Large residential properties
• Solar-powered homes
• Off-grid living
• Refrigerators and freezers
• Air conditioning
• Pumps and other high-demand appliances
• Home offices and networking equipment
• Essential lighting and household electronics

The modular design also allows the BLUETTI EP800 platform to scale to larger configurations, with BLUETTI listing 2× EP800 + 6× B500 and 2× EP800 + 8× B500 options.

Important: This is a substantial residential energy-storage system and installation should be performed according to local electrical requirements by a qualified installer.