EG4 WallMount 314Ah Indoor Battery + EG4 18kPV Inverter | Off-Grid Home Solar System

The EG4 314Ah Indoor Battery + EG4 18kPV ESS System delivers intelligent energy management, dependable backup power, and scalable energy independence for grid-tied, grid-assist, and off-grid applications. Combining the high-capacity 16.0kWh EG4 WallMount Indoor LiFePO₄ battery with the versatile EG4 18kPV all-in-one hybrid inverter, this system offers a powerful solution for reducing energy costs, protecting against outages, and maximizing solar production. The EG4 18kPV provides up to 12,000W of continuous split-phase output and utilizes up to 18,000W of solar power through three high-voltage MPPTs. Its 100–600VDC solar input range supports efficient array design, reduced cable requirements, and streamlined installation. The inverter can operate on-grid, off-grid, or in grid-assist mode and supports exporting excess solar energy where permitted by the local utility. Paired with the 314Ah battery—featuring 16.0kWh of storage, 200A continuous output, 10,000 cycles at 80% depth of discharge, and an advanced third-generation BMS—the system provides stable, long-lasting performance for homes and small businesses. Closed-loop battery communication allows the inverter and battery to coordinate charging, discharging, monitoring, and system protection. Built-in Wi-Fi provides remote access through the EG4 monitoring platform, while the inverter’s configurable LCD interface allows convenient on-site control. Designed for safe indoor energy storage, the battery includes automatic self-heating for cold environments, Auto-ID technology for simplified expansion, natural-convection cooling, and flexible wall- or floor-mount installation. The inverter features a NEMA 4X outdoor-rated enclosure, integrated PV disconnect, arc-fault protection, ground-fault protection, and rapid-shutdown support. Ships From: Texas, USA Warranty: 10 Years (Battery), 10 Years (Inverter) Support: Lifetime USA-Based Tech Support Compatibility Integrated & Optimized System: EG4 WallMount 314Ah Indoor Battery + EG4 18kPV All-in-One Hybrid Inverter Closed-loop communication between compatible EG4 components 48V nominal battery architecture Expandable & Flexible: Cross-compatible with other supported EG4 48V battery systems Scalable battery storage for growing energy needs Supports grid-tied, grid-assist, and off-grid installations Supports AC coupling and generator integration Up to 10 inverters can be paralleled for expanded system capacity Key Features Complete Hybrid ESS Solution – Integrated battery and inverter system for solar production, backup power, and energy management 12,000W Continuous Output – Split-phase 120/240V or 120/208V power for residential and light-commercial applications 18,000W Usable PV Input – High solar capacity for improved daytime production and battery charging Three High-Voltage MPPTs – Flexible array configuration with a 100–600VDC input range 16.0kWh LiFePO₄ Battery (314Ah) – High-capacity, safe indoor energy storage 200A Continuous Battery Output – Supports demanding household and backup loads 10,000-Cycle Battery Life – Long-lasting performance at 80% depth of discharge Third-Generation BMS – Advanced monitoring, cell balancing, and system protection Closed-Loop Communication – Coordinated charging, discharging, and battery monitoring Grid Sell-Back Capability – Export excess solar power where permitted by utility regulations Built-In Wi-Fi Monitoring – Remote performance monitoring and system management through EG4 Connect Fast Backup Switching – Helps maintain power to connected loads during grid outages EMP-Hardened Inverter – Engineered for added resilience against electrical disturbances NEMA 4X Inverter Enclosure – Suitable for indoor or outdoor inverter installation Self-Heating Battery – Supports reliable battery performance in colder indoor environments Expandable Design – Parallel up to 10 inverters and add compatible EG4 batteries as energy needs grow Maintenance-Free Operation – Quiet, efficient operation without routine servicing A powerful, grid-interactive energy storage system engineered for solar savings, whole-home backup, flexible system expansion, and long-term energy independence.