EG4 FlexBOSS21 Complete Power System with 1 x WallMount Indoor Battery 280Ah & Indoor Buildable Conduit Box – 16kW Hybrid Inverter 14.3kWh LiFePO4 for Solar, Home Backup & Off-Grid
Model #: EG4 FlexBOSS21 SKU: EG4-WM48x1-CB1
Product Details
Product Description for EG4 FlexBOSS21 Complete Power System
EG4 FlexBOSS21 Complete Power System with 1 x WallMount Indoor Battery 280Ah & Indoor Buildable Conduit Box – All-in-One 16kW Hybrid Solution for Solar, Whole-Home Backup & Off-Grid
Revolutionize your energy setup with the EG4 FlexBOSS21 Complete Power System (Model: EG4 FlexBOSS21), a groundbreaking all-in-one hybrid solution integrating a 16kW pure sine wave inverter, 100A MPPT solar charger, 80A AC battery charger, and smart transfer switch. This kit includes the FlexBOSS21 inverter, one 51.2V 280Ah WallMount Indoor LiFePO4 battery (14.3kWh), and the Indoor Buildable Conduit Box for seamless integration — delivering 120V/240V split-phase power for whole-home backup, off-grid living, commercial facilities, solar + storage, and RV/outbuilding power. Designed for indoor climate-controlled environments.
Key Features Integrated 16kW Hybrid Inverter with 32kW surge capacity, supporting up to 16 units in parallel for 256kW total output. High-Capacity 14.3kWh WallMount Indoor LiFePO4 Battery with 8000+ cycles at 80% DOD and 15+ year design life. Indoor Buildable Conduit Box enables organized wiring and easy installation in controlled environments. 100A MPPT Solar Charger handles up to 21kW PV input with 120–450V range for flexible array design. Smart Monitoring via Wi-Fi, CAN, RS485 with mobile app for real-time control and alerts. Flexible Battery Options – indoor WallMount for climate-controlled spaces (PowerPro all-weather version sold separately). High-Frequency Transformerless Design with <50dB noise and -13°F to 140°F operating range. Expandable for Additional Inverters/Batteries – stack up to 16 for massive scalability. Safe & Certified – UL1973/UL9540A batteries, UL1741 inverter, 10-year standard warranty.
Specifications at a Glance Inverter: 48VDC input, 120/240V AC output • Continuous Power: 16,000W • Surge Power: 32,000W • MPPT Solar Input: 21,000W max (120–450V) • AC Charger: 80A • Efficiency: >95% • Dimensions: 30.43 × 22.28 × 11.22 in • Weight: 88 lbs • Battery: 51.2V 280Ah (14.3kWh) • Continuous Discharge: 200A • Max Charge Current: 200A • Cycles: 8000+ at 80% DOD • Dimensions: 23.6 × 16.5 × 5.9 in • Weight: 282.2 lbs • Conduit Box: Dimensions 31.5 × 19.7 × 7 in • Weight: 55 lbs • Certifications: UL1973/UL9540A (battery), UL1741 (inverter) • Warranty: 10 years
Pair this system with additional EG4 batteries or solar arrays for limitless expansion. Whether securing your home against outages, powering an off-grid cabin, or upgrading RV solar, the EG4 FlexBOSS21 delivers commercial-grade reliability in a flexible package. Order now — stocked and ready to ship from lithiumion-batteries.com!
(For full technical details, download the datasheet or manual linked on the product page.)