Fortress Power eBoost 16kWh Solar Battery – DIY-Friendly Residential Backup
Pre-order today! Shipping October 1, 2025.
🛠️💰🏆 Simplest Install. Lowest Cost. Maximum Value
The Fortress Power eBoost is a high-capacity, modular solar battery. Each unit provides 16kWh of usable energy and can be stacked with additional units to scale up to 256kWh. With an IP65 rating, built-in heating elements, and integration with the eWay wireway system, eBoost ensures clean, organized, and reliable installations in any environment. Engineered to handle high load demands, it delivers dependable, cost-effective power for homes, off-grid cabins, or small businesses, making it an ideal solution for DIY solar enthusiasts seeking practical, efficient, and expandable energy storage.
Applications
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Whole-home backup power
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Off-grid homes and cabins
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Light Commercial Use
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DIY solar setups
Meet the Fortress Power eBoost Scalable Home Energy Storage System
eBoost 16kWh LFP Battery / Key Benefits
Energy Freedom, Power for All Conditions
🛡️ Extended Warranty for Peace of Mind
Long-lasting LFP cells with over 8,000 cycles and a 15-year warranty provide reliable, worry-free energy for your home or business.
🔋 High-Capacity Power for Your Needs
Each eBoost unit provides 16kWh of energy, perfect for homes or businesses with high electricity usage or limited installation space.
📈 Flexible, Cost-Effective Energy That Grows with You
Start with a single eBoost battery and
expand up to 16 units (256kWh) as your energy needs grow, without complicated
upgrades or extra costs.
🛠️ DIY-Friendly & Easy Installation
The integrated eWay wireway system keeps wiring organized and code-compliant, combining busbars, conduit ports, and an emergency shutoff, which ensures a quick, simple, and safe setup.
🌦️ Built-In Heater & All-Weather Protection
IP65-rated housing and internal heating elements keep eBoost performing reliably in freezing winters or humid summers.
⚡ Flexible Energy Management
Pair with the Envy Duo 21 inverter for whole-home backup, or combine with other compatible inverters for DIY off-grid or grid-tie solar systems.
eBoost Feature Videos
See what eForce can do. Coming Soon~
eBoost Installation Videos
Step-by-step setup guide. Coming Soon~
eBoost Influencer Videos
Hear what influencers think. Coming Soon~
eBoost 16kWh LFP Battery Technical Specs & Downloads
Get the details you need—spec sheets, manuals, and performance data all in one place. We link directly to the manufacturer's site, so you know you always have the most up-to-date information.
| 16kWh | 32kWh | |
| GENERAL DATA | ||
| Weight | 353 lbs (160 kg) | 706 lbs (320 kg) |
| Operating Temperature | -4 ºF – 140 ºF (-20 ºC – 60 ºC)* | |
| Ingress Protect | Degree IP65 | |
| Communication | PCS CAN/RS485; Parallel:CAN | |
| Dimensions (W*D*H) | eWay : 22.84×10.18×9.39 in (580×258.6×238.5 mm) | Battery: 22.28×10.18×33.71 in (566×258.6×856 mm) | |
| Warranty | 10 years (up to 15 years with Fortress Power inverter and platform) | |
| Mounting Options | Ground-Mount, Floor Standing, Wall-Hanged (Separate Accessory) | |
| BATTERY SPECIFICATIONS | ||
| Maximum Units In Parallel | 16 | |
| Cell Type | Tier-1 Prismatic 16 Cell LFP | |
| Nominal Capacity | 314Ah | 2 x 314Ah |
| Nominal Energy | 16.1kWh** | 32.2kWh** |
| Nominal Voltage | 51.2V | |
| Re-charge Voltage | 49V | |
| Cut-off Voltage | 41.6V | |
| Maximum Short-Circuit (A) | Under Testing | |
| Operating Voltage Range | 41.6-57.6V | |
| Closed-Loop Charge/Discharge | 180/250 A | 360/500 A |
| Bulk/Absorption Charge | 55.2V | |
| Max Charge/Discharge | 314A/10s | 628A/10s |
| Surge Discharge Power W | 18kW/10s | 36kW/10s |
| Cycle Life @ EOL 70% | 8000 Cycles | |
| STANDARDS & CERTIFICATIONS | ||
| Safety Standards | UL1973, ANSI/CAN/UL9540:2023, UL9640A (expected Q3 2025) | |
| Listings | CEC, LUMA, oGPE | |
| Transportation | UN38.3 | |
* Performance will degrade at operating temperatures above 104 ºF (40 ºC)
** Values are based on measurements taken at 77 ºF (25 ºC) at beginning of life.
