Meet the EG4 WallMount 314Ah AllWeather Battery — a high-capacity, outdoor-ready energy storage unit built for installs where space, weather, and long runtimes all matter. Delivering 16kWh at 51.2V, it’s designed to be a dependable backbone for solar-plus-storage, off-grid power, or whole-home backup setups that need serious capacity with straightforward expandability.
At the core are lithium iron phosphate (LiFePO₄) cells paired with EG4’s smart BMS for stable performance and long service life, plus active cell balancing to help keep the pack operating efficiently over time. The enclosure is purpose-built for exterior placements with an IP67 rating, and internal heaters support reliable operation when temperatures drop. For day-to-day ownership and long-term maintenance, Bluetooth + Wi-Fi connectivity enables live status checks and over-the-air firmware updates through the EG4 app—so the system stays current without hassle.
Why it stands out
- Big usable capacity: 16kWh (314Ah) for extended runtime and stronger backup coverage
- True outdoor protection: IP67 enclosure built to handle dust, water, and harsh conditions
- Smarter control: EG4 smart BMS with active cell balancing for better efficiency and longevity
- Connected ownership: Bluetooth/Wi-Fi monitoring + OTA updates via the EG4 app
- Cold-weather confidence: Built-in heaters for reliable performance in colder climates
- Simplified scaling: Auto-addressing and closed-loop integration with EG4 inverters/batteries
Best-fit applications
A strong choice for residential and light commercial solar storage, outdoor battery banks, off-grid power systems, and backup power where durability, monitoring, and easy expansion are priorities.
Core specifications (at a glance)
Weight: 309 lbs
Nominal Voltage: 51.2V
Energy Capacity: 16kWh
Charge Capacity: 314Ah
Max Parallel (closed-loop): Up to 32 batteries
Certifications: UL 1973; UL 9540 with Flexboss21 & Flexboss18
Design Life: Tested 10,000+ cycles @ 80% DoD
Dimensions: 34.6″ × 21.7″ × 9.3″
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