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EG4 FlexBOSS21 and two EG4-WallMount Indoor Batteries

EG4 FlexBOSS21 | EG4-WallMount Indoor Battery Bundle [BNDL-E0023]

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$12,005.87
$11,258.93
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SKU:
BNDL-E0023-1-2

EG4 FlexBOSS21 Home Backup Power Bundle – Reliable Energy for Everyday Living and Outages

This powerful bundle brings dependable home energy security to your fingertips by combining the EG4 FlexBOSS21 Hybrid Inverter with the WallMount Indoor 14.3kWh Battery. Designed for seamless performance during everyday use or unexpected outages, the FlexBOSS21 intelligently manages solar, battery, and grid power to keep your lights on and essentials running. Its advanced MPPT control maximizes solar harvest, while the WallMount Battery’s lithium iron phosphate cells deliver safe, long-lasting energy storage. The built-in Battery Management System constantly monitors temperature, voltage, and current to ensure safe operation and efficient power delivery. Whether you’re reducing your energy bills or staying prepared for blackouts, this bundle provides a smooth, worry-free power experience for your home.

GridBOSS FlexBOSS21 product advertisement with images of appliances and features.
Wallmount indoor 280Ah battery with features and specifications listed.

EG4 FlexBOSS21 Hybrid Inverter

The EG4 FlexBOSS21 is a versatile 48V split-phase, hybrid inverter/charger that offers the same dependable power as the 18kPV with enhanced flexibility. Powerful enough to start a 5-ton AC unit, the FlexBOSS21 supports 21kW of PV input between three MPPTs and 16kW of continuous AC output. Capable of paralleling up to 16 units together, the FlexBOSS21 has an impressive total output of 256kW continuous when using PV input. The updated EG4 monitoring software allows for convenient total remote management, complete with mobile notifications and remote setting. Seamless interaction with GridBOSS gives users control over their entire Energy Storage System (ESS).

Features:

  • This unit is capable of selling power back to grid for net metering, remaining dormant for home backup, or operating fully-off grid
  • Built-in rapid shutdown, ground fault monitoring, arc-fault protection, and robust safety certifications provide peace of mind
  • Surge capability as high as 24kW means this unit can start up a 5-Ton AC as well as anything else you can find in a typical residence
  • The unit shell is EMP hardened and ensures reliable operation during electromagnetic pulse events

EG4 Indoor WallMount Battery

The WallMount Indoor 14.3kWh batteries are ideal for low-voltage residential indoor energy storage applications. The batteries use an intelligent Battery Management System (BMS) that can monitor and record the voltage of each cell along with the current, voltage, and temperature of the module in real-time.

Features:

  • Optional ESS disconnect allows for one-touch shutdown of all batteries and inverters equipped with rapid shutdown capability 
  • Includes multiple terminals (4 positive, 4 negative), eliminating the need for external busbars when connecting multiple batteries or inverters
  • Integrated self-heating automatically heats the battery during low temperature settings to keep the battery operational
  • Dual on-board fire arrestors offer fail-safe protection against thermal runaway

EG4 280Ah Indoor Buildable Conduit Box

The EG4 Indoor Buildable Conduit Box allows users a simple and effective way to protect cables and connections between battery and inverter. The conduit box is designed to pair the EG4 WallMount Indoor 280Ah Lithium Battery with either the EG4 FlexBOSS18, FlexBOSS21, 18kPV, 12kPV, 6000XP, or the
12000XP inverters.

Features:

  • Direct fit combination of EG4 FlexBOSS18, FlexBOSS21, 18kPV, 12kPV, 6000XP, or the 12000XP inverters with EG4 WallMount Indoor 280Ah Lithium Batteries
  • Protects cables and connections on paralleled batteries, with side knockouts for battery to battery cable runs
  • Designed for hassle-free installation, allowing for a clean and efficient setup
  • Box size allows for proper wire spacing per NEC code

Please Note: Lifetime Customer Support is based in Texas and available via phone and email. We strongly recommend using a certified solar installer and/or master electrician for professional installation. Please note that additional components may be required for your installation. Please Note: The FlexBoss UL9540 is currently unavailable. It is undergoing review, and updates will be provided at a later date.

Have questions or need assistance? Our support team is here to help! Give us a call at 903-441-2090.

Product Image Product Information
EG4 18KPV Hybrid Inverter | All-In-One Solar Inverter | 18000W PV Input | 12000W Output | 48V 120/240V Split Phase | EG4-18KPV-12LV

1-2x EG4 FlexBOSS21 Hybrid Inverter

End Clamp for Mini Rail 30mm close up view

1-6x EG4 Indoor WallMount Battery
Front and rear view of BlueSun 460W Bifacial Solar Panel pallet quantity

1-6x EG4 280Ah Indoor Buildable Conduit Box
EG4 Battery Paralleling Cables black and red medium coiled wire and small green coiled wire

1-4x EG4 280Ah WallMount Battery Paralleling Cable Kit

 

Relevant Videos

EG4 FlexBOSS21 - Load Testing

In this video, we put the EG4 FlexBOSS21 Hybrid Inverter to the test and explore what makes it one of the most capable home and off-grid power solutions available today. We start with an Intro and quick overview of the system, followed by a deep dive into idle consumption to see how efficiently the unit operates when under minimal load. Next, we push the FlexBOSS21 to its limits with a heavy unbalanced load test, showcasing its ability to handle demanding real-world conditions. Then, we switch to a no grid scenario to see how it performs completely off-grid. Finally, we wrap up with a conclusion highlighting performance insights, efficiency results, and our overall take on the FlexBOSS21’s hybrid power capabilities.

EG4 WallMount Indoor 280Ah Lithium Battery:Maximize Your Energy

Discover how to maximize your energy storage with the EG4 WallMount, designed specifically for indoor use but equipped with features to excel in any environment. This guide will help you harness the full potential of the EG4 WallMount Indoor.

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