EG4 WallMount 314Ah
All Weather Battery
Trusted by homeowners — ★4.9 Google rating for reliable home energy solutions.
Reliable Power When the Grid Goes Down
The EG4 WallMount 314Ah All Weather Battery is a wall-mounted, outdoor-rated lithium iron phosphate battery delivering 16 kWh of energy storage per unit. Designed for both new installs and retrofits, it charges from your solar panels during the day and powers your home through the night or during outages — quietly and automatically.
LiFePO4 Chemistry
IP67 All-Weather Rated
UL Certified
What Makes It Stand Out
IP67 All-Weather Enclosure
Fully outdoor-rated with an IP67-certified housing — designed for direct exterior installation whether it rains, freezes, or bakes in the Texas heat.
Active Cell Balancing BMS
The third-generation BMS includes active cell balancing for improved performance and a longer battery lifespan compared to passive balancing systems.
Wi-Fi & Bluetooth Monitoring
Built-in Wi-Fi and Bluetooth let you monitor system status, update firmware, and track performance from anywhere — no extra hardware required.
10-Year Warranty
Backed by a full decade of coverage, with 10,000+ cycle design life tested at 80% depth of discharge — built to outlast the competition.
Expandable Up to 32 Units
Stack up to 32 batteries in parallel for systems that scale from single-room backup to full whole-home energy independence.
Auto-Addressing Installation
Auto-ID technology eliminates manual configuration — the battery identifies itself and communicates directly with compatible EG4 inverters from the start.
The Numbers That Matter
16 kWh Usable Capacity
51.2 V Nominal Voltage
200 A BMS Current Rating
10,000+ Cycle Life
IP67 Enclosure Rating
-20 °C Min Operating Temp
Built for Texas Homeowners
Integrated Cold-Weather Heating
EG4 Connect App Monitoring
30% Federal Tax Credit Eligible
Installed by Our In-House Team
See the EG4 Battery in Action
EG4 Battery Monitoring App for Homeowners
Why Choose Solstice Solar for Your EG4 Installation
Certified EG4 Installation Expertise
Transparent System Design
Fast, Local Support
What Our Customers Are Saying
Michael R.
Katy, TX
Jennifer T.
Cypress, TX
Common Questions
How many EG4 batteries do I need for my home?
It depends on your home's energy use and how many hours of backup you need. A typical Houston home averaging 40–60 kWh per day would need 3 to 5 modules for overnight coverage. Our team will review your utility bill during your free consultation and recommend the right system size.
Is EG4 compatible with my existing solar system?
The EG4 WallMount 314Ah All Weather Battery supports closed-loop communication with EG4, Sol-Ark, Victron, SMA, Growatt, Schneider, and other compatible inverters via CAN bus and RS485. Our team will confirm compatibility during your system assessment before any work is scheduled.
Does the EG4 battery qualify for the federal tax credit?
Yes. Battery storage installed with a solar system qualifies for the 30% Federal Investment Tax Credit. We recommend confirming the details with a tax professional, as your specific eligibility may vary.
Can it be installed outdoors?
Yes — the EG4 WallMount 314Ah All Weather Battery carries an IP67 enclosure rating, making it fully rated for outdoor installation. Its integrated self-heating system maintains reliable performance during cold snaps — important for Texas winters that can bring unexpected freezes.