Fortress Power
eBoost Scalable Energy Storage System
Overview
The Fortress Power eBoost is a high-capacity, modular energy storage solution built for residential and light commercial applications. With 16kWh of usable energy per unit and the ability to scale up to 256kWh, eBoost is engineered to handle high load demands while offering the flexibility of stackable, parallel installations. Built-in heating elements, an IP65 weatherproof enclosure, and integration with the eWay wireway system allow for clean, all-weather installs. When paired with the Envy Duo 21 or any Envy-series inverter, the eBoost forms a fully integrated, whole-home energy storage system—ideal for backup power, energy independence, and more.
Features
- Delivers 16kWh of energy storage per unit—ideal for homes or businesses with higher load profiles or limited install space.
- Easily scale your system by connecting up to 16 units in parallel, giving you the flexibility to grow as your energy needs evolve.
- IP65-rated and equipped with internal heating elements for reliable performance in extreme conditions.
- Modular, scalable design with fast-connect hardware reduces install time and labor while maintaining a clean, professional appearance.
- Pairs with all Fortress Power Envy inverters, including the Envy Duo 21, for seamless whole-home backup and energy management.
- Built-in busbars, conduit ports, LED indicators, and an emergency shutoff make for clean, code-compliant installations with fewer external components.
System Components
The Fortress Power eBoost system is comprised of several key components:
- Fortress Power eBoost Battery Module: The primary energy storage unit, available in various capacities.
- Envy Duo 21 Hybrid Inverter or 8/10/12kW Models: The inverter that manages power flow and system operation.
- eBoost eWay for AC & DC Wires: An integrated system for managing electrical connections, featuring a built-in 750A busbar for efficient wiring.
- Locking Wheels: Integrated features for easy mobility of the battery modules.
The eBoost unit is designed for clean, professional installations with accessible connection points and indicators.
Technical Data
General Data
| Specification | 16 kWh Model | 32 kWh Model |
|---|---|---|
| Weight | 308.6 lbs (140 kg) | 617.2 lbs (280 kg) |
| Operating Temperature | -4 °F - 140 °F (-20 °C - 60 °C) | |
| Ingress Protect | IP65 | |
| Communication | PCS CAN/RS485; Parallel:CAN | |
| Dimensions (W*D*H) | eWay: 22.84 x 9.52 x 10.18 in (580 x 241.9 x 258.5 mm) Battery: 22.28 x 11.27 x 37.81 in (566 x 286 x 960.2 mm) |
eWay: 22.84 x 9.52 x 10.18 in (580 x 241.9 x 258.5 mm) Battery: 22.28 x 11.27 x 37.81 in (566 x 286 x 960.2 mm) |
| Warranty | 10 years (up to 15 years with Fortress Power inverter and platform) | |
| Mounting Options | Floor Standing, Wall-Hanged | |
Battery Specifications
| Specification | 16 kWh Model | 32 kWh Model |
|---|---|---|
| Maximum Units in Parallel | 16 | 8 |
| Cell Type | Tier-1 Prismatic LFP | |
| Nominal Capacity | 314Ah | 2 x 314Ah |
| Nominal Energy | 16.076kWh** | 32.152kWh** |
| Nominal Voltage | 51.2V | 51.2V |
| Re-charge Voltage | 49V | 49V |
| Cut-off Voltage | 41.6V | 41.6V |
| Maximum Short-Circuit (A) | 180/250 A | 360/500 A |
| Operating Voltage Range | 41.6-57.6V | 41.6-57.6V |
| Closed-Loop Charge/Discharge | 314A/10s | 628A/10s |
| Bulk/Absorption Charge | 55.2V | 55.2V |
| Max Charge/Discharge | 314A/10s | 628A/10s |
| Surge Discharge Power W | 16kW/10s | 32kW/10s |
| Cycle Life @ EOL 70% | 8000 Cycles | 8000 Cycles |
Standards & Certifications
- Safety Standards: UL1973, ANSI/CAN/UL9540:2023, UL9540A (expected Q3 2025)
- Listings: CEC, LUMA, OGPE
- Transportation: UN38.3 Passed
- Certifications: ETL Certified by Intertek, Transport Safety Certified
Contact Information
For more information, please visit the Fortress Power website or contact them directly:
- Website: www.fortresspower.com
- Email: sales@fortresspower.com
- Phone: 877.497.6937
Note: Information subject to change.
