Fortress Power eBoost Scalable Energy Storage System

The Fortress Power eBoost is a modular, high-capacity DC energy storage system designed for residential and light commercial backup and energy management. With stackable configurations and parallel scalability, eBoost delivers serious capacity in a clean, all-weather enclosure—built to grow as your needs evolve.

Key Features & Benefits:

(Values vary by model: eBoost 16 / eBoost 32 / eBoost 48)

• Model numbers:

  • eBoost DC Energy Storage System 16 P1

  • eBoost DC Energy Storage System 32 P2

  • eBoost DC Energy Storage System 48 P3

• Battery chemistry / cell type: Tier-1 Prismatic 16 Cell LFP

• Nominal energy: 16.077kWh / 32.154kWh / 48.231kWh

• Nominal capacity: 314Ah / 628Ah / 942Ah

• Nominal voltage: 51.2V

• Operating voltage range: 41.6–57.6V

• Bulk/Absorption charge voltage: 55.2V

• Recharge voltage: 49V

• Cut-off voltage: 41.6V

• Closed-loop charge/discharge: 180/250A | 360/500A | 540/750A

• Max charge/discharge (10s): 314A/10s | 628A/10s | 942A/10s

• Surge discharge power (10s): 16kW/10s | 32kW/10s | 48kW/10s

• Max short-circuit: 2000A, 17ms

• Ingress protection: IP65

• Operating temp: -4°F to 140°F (-20°C to 60°C) *

• Comms: PCS CAN/RS485; Parallel: CAN

• Max units in parallel: 16 / 8 / 5

• Dimensions (W×D×H):

  • eWay: 22.84 × 9.52 × 10.18 in (580 × 241.9 × 258.5 mm)

  • Battery: 22.28 × 11.27 × 37.81 in (566 × 286 × 960.2 mm)

• Weight: 304.2 lb | 608.4 lb | 912.6 lb

• Mounting options: Floor Standing, Wall-Hanged

• Cycle life @ EOL 70%: 8000 cycles

• Altitude: < 6,561 ft (< 2000 m)

• Warranty: 10 years

Standards & Certifications

• Safety: UL1973, ANSI/CAN/UL9540:2023, UL9540A

• Listings: CEC, LUMA, OGPE

• Transportation: UN38.3

* Temperature line provided with an asterisk in source; additional footnote details not provided.
** Nominal energy values provided with double-asterisk; additional footnote details not provided.

Ideal For

• Whole-home or facility backup power when paired with Fortress Envy-series inverters

• Energy independence and load support for higher-demand homes or light commercial sites

• Projects needing an IP65, heated, clean-install storage solution

• Systems that need expandable capacity over time

User Manual / Documents:

• Fortress Power eBoost Scalable Energy Storage System Data Sheet