BOSSBox: The Smarter, Quieter, and Cost-Effective Energy Storage Solution

The EG4 BOSSBox is a weather-resistant energy storage enclosure designed for easy, DIY-friendly installation. Built to house EG4 hybrid inverters and EG4 AllWeather batteries, it provides a reliable solution for whole-home backup, off-grid living, and light commercial use. Whether you're securing backup power for outages or setting up an independent energy system, the BOSSBox makes it simple. No need for complex wall mounting—its freestanding design saves time, labor, and extra costs. Made from durable epoxy-coated Q235 steel, it stands up to harsh outdoor conditions while keeping your power secure.

Included Cables: The BOSSBox includes one BOSSBox cable kit. Additional cables must be purchased separately when adding a second inverter or more than one battery. Please refer to the user manual for battery placement and cabling.

A Silent Alternative to Generators

Traditional generators are loud, expensive to maintain, and reliant on fuel. The BOSSBox Energy Storage Enclosure offers a clean, quiet, and reliable power solution, perfect for homes, businesses, and emergency backup situations. Whether you need backup power during outages or a dependable energy source for off-grid setups, this ESS Cabinet delivers without the noise, fumes, or ongoing fuel costs.

Effortless Installation & Lower Costs

Designed with convenience in mind, the BOSSBox stands on its own, eliminating the need for drilling, wall-mounting, or complicated installations. This streamlined setup reduces labor costs, making energy storage more accessible and cost-effective.

Inside, it’s built to house:

• Up to two EG4 Hybrid Inverters (12kPV, 18kPV, FlexBOSS18, FlexBOSS21)
• Three 280Ah EG4 WallMount All Weather Batteries

Built for Durability

From extreme weather to long-term outdoor exposure, the BOSSBox is designed to last. The epoxy-coated steel construction provides protection against the elements, ensuring your energy storage remains secure in any environment.

Where Can You Use the BOSSBox?

• Whole-Home Backup – Keep essential appliances running during power outages.
• Disaster Relief – A dependable energy solution when it matters most.
• Light Commercial Use – Reliable power storage for businesses, construction sites, events, and off-grid applications.
• DIY Home Energy Storage – A space-saving solution that keeps your garage walls clear while providing secure, all-in-one energy storage.

Specifications

• Dimensions: 48 × 32.1 × 54.4 in. (without inverters) / 67 × 32.1 × 54.4 in. (with inverters)
• Weight: 397 lbs. (empty) / 1,821 lbs. (fully loaded, varies by inverter model and cable length)
• Included Cables: The BOSSBox includes one BOSSBox cable kit. Additional cables must be purchased separately when adding a second inverter or more than one battery. Please refer to the user manual for battery placement and cabling.

Learn more about this product's 5-year Structural Limited Warranty .