Fortress Power eForce Stackable Whole-Home Energy Storage System - eForce 19.2kW 400AH

SKU: eForce-EF-1-1-1-1

$8896.55

Call

Options

eForce-EF-1-1-1-1

$8896.55

Fortress Power eForce Stackable Whole-Home Energy Storage System - eForce 28.8kW 600AH

eForce-EF-1-1-1-1-1

$13603.45

Product Overview

The Fortress Power eForce is a stackable 48V lithium iron phosphate (LFP) battery system designed for seamless integration with existing solar installations. With over 8,000 life cycles, IP65 rating, and built-in heating elements, it delivers reliable energy storage for both on-grid and off-grid applications.

Key Features

Stackable & Scalable: Stack vertically up to 28.8 kWh per stack or expand laterally up to 268.8 kWh total
8,000+ Life Cycles: LFP chemistry provides superior safety, longevity, and fast-charging capability
IP65 Rated: Built-in heating elements ensure reliable performance in extreme temperatures, indoors or outdoors
VPP Ready: Participate in virtual power plant programs to earn incentives for grid support
15-Year Warranty: Included standard, with an optional 30-year extension when paired with a Fortress Envy Hybrid Inverter

What's Included

eForce Battery (9.6kW, 19.2kW, or 28.4kW)
eWay Battery Combiner
Battery Cables & Wire Management
Floor Mount

Who Is This For?

Ideal for homeowners seeking whole-home backup or energy bill reduction, off-grid installations, those interested in VPP program participation, and anyone building a new solar system or upgrading an existing one.

Product Documents

Spec Sheets

FP_datasheet_eForce_2025.pdf

Download

Manuals & Guides

FP_manual_install_eForce_2025.pdf

Download

Frequently Asked Questions

How many eForce units can I stack together?+

The eForce system is designed for flexible stacking to scale your storage capacity to match your home's energy needs. Multiple units connect together for whole-home backup that grows with you.

What is the difference between the eForce and the eFlex MAX?+

The eForce is a stackable floor-standing unit designed for larger capacity whole-home backup, while the eFlex MAX is a compact wall-mount unit. Both use LFP chemistry with 8,000+ cycles, but the eForce scales higher for bigger homes.

Can the eForce be installed in my garage?+

Yes. The eForce is rated for both indoor and outdoor installation, making a garage, utility room, or sheltered outdoor area an ideal location. Its stackable design keeps the footprint compact even at high capacity.

Does the eForce work during a grid outage?+

When paired with a compatible hybrid inverter, the eForce automatically switches to backup mode during outages, keeping your home powered seamlessly without manual intervention.

Ready to order?

Request Quote 978-451-6890