Batteries

Fortress Power eBoost Scalable Energy Storage System | 16.077kWh–48.231kWh LFP | IP65 Heated | 10-Year Warranty

$ 13,299.45USD · price may vary

Model: eboost-48
Specifications: 0

Size your system More from Fortress Power

Overview

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

How to read this datasheet

Detailed specifications for Fortress Power eBoost Scalable Energy Storage System | 16.077kWh–48.231kWh LFP | IP65 Heated | 10-Year Warranty have not been published yet. Fortress Power lists this battery in the Batteries, and we add fields as the manufacturer releases them — in the meantime, ask your distributor for the datasheet before ordering.

For a battery, the figures that matter most are continuous charge and discharge current, which limits how much power you can draw from the pack, cycle life at a stated depth of discharge, commonly 3,000–6,000 cycles for LiFePO4, round-trip efficiency, around 90–95% for lithium and 75–85% for lead-acid and communication protocol (CAN or RS485) for talking to the inverter. Storage is what turns a solar array from a daytime bill-reducer into a system that covers evening loads and rides through outages. It is normally the single most expensive component, so sizing it correctly matters more than with any other part.

Choosing a battery: the checks that matter

The checks below apply to any battery. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.

Check the continuous discharge rating against your inverter. A battery that stores plenty of energy but can only deliver 50 A cannot support a large inverter at full output.
Match voltage to the inverter, and confirm the battery appears on the inverter maker's supported list. Closed-loop communication lets the inverter respect the battery's real charge limits instead of guessing.
Read the warranty in full: lithium warranties are stated as a term plus either a cycle count or a total energy throughput, and whichever limit arrives first ends the cover.
Leave room to expand. Packs that parallel cleanly let you add capacity later; ones that do not force a full replacement.

Where buyers lose money

Ignoring the charge current limit and pairing a large array with a small bank, which trips protection and shortens life.
Mixing old and new batteries, or different chemistries, in one bank. The weakest unit drags the whole bank down and can be damaged by the others.
Sizing the bank for total daily consumption rather than after-dark consumption, which typically doubles the cost for no benefit.

Price and availability in United States

Fortress Power eBoost Scalable Energy Storage System | 16.077kWh–48.231kWh LFP | IP65 Heated | 10-Year Warranty is listed at $ 13,299 (USD) for United States. Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.

SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in United States: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Fortress Power locally before ordering.

Fortress Power eBoost Scalable Energy Storage System | 16.077kWh–48.231kWh LFP | IP65 Heated | 10-Year Warranty — frequently asked questions

How much does Fortress Power eBoost Scalable Energy Storage System | 16.077kWh–48.231kWh LFP | IP65 Heated | 10-Year Warranty cost?

Fortress Power eBoost Scalable Energy Storage System | 16.077kWh–48.231kWh LFP | IP65 Heated | 10-Year Warranty is listed at $ 13,299 (USD) for United States. The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.

Who makes Fortress Power eBoost Scalable Energy Storage System | 16.077kWh–48.231kWh LFP | IP65 Heated | 10-Year Warranty?

Fortress Power eBoost Scalable Energy Storage System | 16.077kWh–48.231kWh LFP | IP65 Heated | 10-Year Warranty is a Fortress Power product, listed under batteries with model reference eboost-48. The Fortress Power brand page lists the rest of its range so you can compare across the catalogue.

Is Fortress Power eBoost Scalable Energy Storage System | 16.077kWh–48.231kWh LFP | IP65 Heated | 10-Year Warranty right for my system?

That depends on what it has to connect to. For a battery, check continuous charge and discharge current, which limits how much power you can draw from the pack, cycle life at a stated depth of discharge, commonly 3,000–6,000 cycles for LiFePO4 and round-trip efficiency, around 90–95% for lithium and 75–85% for lead-acid against the rest of your equipment before price enters the decision. Size from your evening consumption. Add up what actually runs after sunset for the hours you want covered, then divide by the usable capacity per unit — that number, not the array size, sets how many batteries you need.

Where can I buy Fortress Power eBoost Scalable Energy Storage System | 16.077kWh–48.231kWh LFP | IP65 Heated | 10-Year Warranty in United States?

SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer in United States — buying in-channel is what keeps the manufacturer's warranty valid.

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