Fortress Power | eVault Max 18.5kWh LFP Battery
Fortress Power | eVault Max 18.5kWh LFP Battery is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
We offer fast and reliable shipping across the continental U.S., with free shipping available on most orders (exclusions may apply based on brand and product type). Orders are typically processed within 1–2 business days and transit time is usually 4–7 business days. Larger items may ship via freight and require a scheduled curbside delivery. Please ensure your contact details are accurate at checkout. For questions about delivery timelines, shipping eligibility, or special requests, feel free to contact us directly. See Policy.
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Price Match Guarantee
Price Match Guarantee
We’re committed to offering the best online prices—if you find a lower price from an authorized retailer, we’ll beat it. Our 100% Price Beat Guarantee excludes promotions, auction sites, and exchanges, and factors in item price, tax, and shipping. For price match inquiries, contact us at (833) 932-9683
Fortress Power | eVault Max 18.5kWh LFP Battery
The eVault Max® 18.5 kWh from Fortress Power is a next-generation lithium iron phosphate (LFP) battery designed for both residential and commercial energy storage. This integrated battery solution is highly scalable, supporting system expansion up to 370 kWh. A removable top access panel simplifies servicing and installation, helping reduce setup time and maintenance concerns. The eVault Max supports both AC- and DC-coupled solar configurations and is suitable for a wide range of energy storage applications, including off-grid systems, backup power, self-consumption, and peak demand reduction.
Protection & Performance Features
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Safeguards against overcharging and excessive discharge
-
Thermal protection to prevent overheating
-
Overcurrent protection for enhanced system safety
-
Individual cell monitoring with active balancing
-
Continuous voltage and temperature tracking
-
Closed-loop communication compatibility with supported inverters
-
Optimized internal layout for straightforward servicing
-
Designed to handle higher inverter surge loads
Fortress Power | eVault Max 18.5kWh LFP Battery
The eVault Max® 18.5 kWh from Fortress Power is a next-generation lithium iron phosphate (LFP) battery designed for both residential and commercial energy storage. This integrated battery solution is highly scalable, supporting system expansion up to 370 kWh. A removable top access panel simplifies servicing and installation, helping reduce setup time and maintenance concerns. The eVault Max supports both AC- and DC-coupled solar configurations and is suitable for a wide range of energy storage applications, including off-grid systems, backup power, self-consumption, and peak demand reduction.
Protection & Performance Features
-
Safeguards against overcharging and excessive discharge
-
Thermal protection to prevent overheating
-
Overcurrent protection for enhanced system safety
-
Individual cell monitoring with active balancing
-
Continuous voltage and temperature tracking
-
Closed-loop communication compatibility with supported inverters
-
Optimized internal layout for straightforward servicing
-
Designed to handle higher inverter surge loads