EG4 BOSS Box

Build a Powerful EG4 Energy Storage System Without the Installation Headaches

The EG4 BOSSBox is a rugged, freestanding energy storage enclosure designed to make large EG4 battery and inverter installations simpler, cleaner, and more flexible. Instead of mounting heavy equipment directly to brick, masonry, or other difficult surfaces, the BOSSBox gives you a purpose-built structure that can reduce installation preparation, labor, and complexity.

With room for up to two compatible EG4 Hybrid Inverters and three EG4 WallMount All Weather Batteries, the BOSSBox makes it easier to build a substantial energy storage system for whole-home backup, off-grid power, disaster preparedness, or light commercial applications. Its freestanding design gives installers greater flexibility when traditional wall mounting is impractical or undesirable.

Built from durable epoxy resin-coated Q235 steel, the BOSSBox is designed for demanding indoor and outdoor installations. When paired with compatible EG4 batteries and inverters, it provides the foundation for a quiet, fuel-free backup power system that can reduce your dependence on conventional generators and eliminate the need to continually store, transport, and purchase fuel.

Why Choose the EG4 BOSSBox?

• Freestanding installation so you can avoid difficult wall mounting on brick, masonry, and other challenging surfaces.
• Supports up to two compatible EG4 Hybrid Inverters so you can build a higher-capacity system for demanding backup and energy storage applications.
• Holds up to three EG4 WallMount All Weather Batteries so you can create substantial stored-energy capacity in one organized system.
• Reduces installation preparation and labor so complex energy storage projects can be completed more efficiently.
• Durable epoxy-coated steel construction so your equipment has a robust enclosure suited for indoor or outdoor installations.
• Compatible with several popular EG4 inverter platforms so you have more flexibility when designing your system.
• Creates the foundation for quiet battery backup power so you can avoid the noise associated with traditional fuel-powered generators.
• Helps eliminate ongoing generator fuel costs when used as part of a properly configured battery and solar energy system.
• Suitable for residential, off-grid, emergency, and light commercial applications so one enclosure can support a wide range of power needs.

A Smarter Alternative to Complicated Wall-Mounted Installations

Large battery and inverter systems can present a challenge when the ideal equipment location has brick, masonry, or another surface that is difficult to drill into or support. The BOSSBox provides a freestanding alternative that reduces dependence on the building structure itself. This can make system planning easier while helping installers create a more organized, purpose-built energy storage installation.

Built for Serious Whole-Home Energy Storage

The BOSSBox is designed to accommodate up to two EG4 12kPV, 18kPV, FlexBOSS18, or FlexBOSS21 inverters and up to three EG4 WallMount All Weather Batteries. That makes it well suited for larger residential systems where homeowners want greater backup capability, more battery storage, or a platform that can support demanding electrical loads.

Quiet, Fuel-Free Backup Power

When configured as part of a complete EG4 battery backup system, the BOSSBox helps provide an alternative to conventional generators. Battery-based backup operates without the engine noise, exhaust, fuel storage, and routine refueling associated with traditional generator systems, making it especially attractive for residential properties and other locations where quiet operation matters.

Designed for Indoor or Outdoor Installations

The enclosure is constructed from epoxy resin-coated Q235 steel for durability and protection in demanding environments. Its weather-resistant construction gives installers greater freedom to position the system where it makes the most sense for the property, whether that is indoors or outdoors.

Ideal Applications

• Whole-home backup power for homeowners who want greater protection during utility outages.
• Off-grid energy systems where solar generation and battery storage serve as primary power sources.
• Disaster preparedness where reliable stored energy can keep critical systems operating during extended outages.
• Light commercial applications that require a scalable, organized energy storage installation.
• Properties with difficult mounting surfaces where attaching heavy batteries and inverters directly to a wall would be challenging.