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Fortress Power eForce 19.2 19.2kW Energy Storage System (19.2kWh Capacity)

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Fortress Power eForce 19.2 19.2kW Energy Storage System (19.2kWh Capacity)

$11,941.17 USD

$ $11,941.17 USD

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You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

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Fortress Power eForce 19.2 — Outdoor LFP Battery Storage Kit

Model eForce 19.2 | 19.2 kWh | 400Ah | 48V | LFP | IP65 Outdoor Rated | Built-In Heater | Includes eWay Combiner, Cables & Floor Mount | 10-Year Warranty

19.2 kWh

Total Energy Capacity

8,000

Cycle Life @ 70% EOL

14.4 kW

Surge Discharge (10s)

IP65

Outdoor / All-Weather Rated

Product Overview

The Fortress Power eForce 19.2 is a complete 19.2 kWh outdoor-rated lithium iron phosphate (LFP) energy storage kit comprising two stacked 9.6 kWh Tier-1 prismatic LFP battery modules — each with a built-in temperature-sensor-controlled heater — topped with the Fortress eWay integrated AC/DC combiner and wireway, pre-assembled cables, and a floor-standing mount. Rated at 400Ah / 48V nominal with an IP65 ingress protection rating, the eForce 19.2 is engineered for all-weather outdoor installation, supporting operating temperatures from -4°F to 140°F (-20°C to 60°C) without derating. With 8,000 cycle life at 70% end-of-life capacity, a 250A maximum charge/discharge current, 14.4 kW surge discharge capability, and native RS485 / Wi-Fi / CAN communication for closed-loop BMS integration with compatible inverters, the eForce 19.2 is purpose-built for whole-home backup, solar self-consumption, off-grid, and Virtual Power Plant (VPP) applications. The kit is compatible with the Fortress Power Envy 8kW, 10kW, and 12kW inverters, and the system is scalable to up to eight 19.2 kWh units in parallel for a total of 153.6 kWh.

Key Benefits

IP65 Outdoor Rating + Built-In Temperature-Controlled Heater: The eForce 19.2 is fully sealed to IP65 — protected against dust ingress and water jets from any direction — making it suitable for direct outdoor wall or floor installation in garages, carports, or exterior locations without a separate enclosure. Each battery module contains an integrated electric heater that activates automatically when cell temperature drops below the operational threshold, keeping the LFP cells within their optimal performance window down to -4°F (-20°C) and preventing cold-temperature capacity loss that affects standard outdoor batteries.

eWay Integrated Combiner — All AC/DC Connections in One Place: The Fortress eWay wireway sits atop the stacked battery modules and serves as the system's central AC/DC connection hub — integrating busbars, cable conduit ports, and a lockable, taggable power disconnect (eDisconnect) in a single assembly that eliminates the need for a separate DC combiner box or manual disconnect hardware. All inverter AC connections, battery DC bus connections, and communication wiring route through the eWay, significantly reducing installation time and simplifying field wiring for the installing technician.

8,000-Cycle Life — 20-Year Design Life: The Tier-1 prismatic LFP cells inside the eForce 19.2 are rated for 8,000 full charge/discharge cycles at 70% end-of-life capacity — equivalent to over 21 years of daily cycling. This cycle life guarantee is backed by a 10-year standard warranty, with upgrade options available to extend coverage to 30 years when the eForce is installed as a complete system with the Fortress Envy inverter and Guardian Gateway, making it one of the longest-warranted residential battery systems on the market.

250A Continuous + 14.4 kW Surge Discharge: A maximum continuous charge/discharge current of 250A enables rapid charging from high-power solar arrays and fast discharge to support whole-home loads simultaneously, while a 14.4 kW surge discharge capability for 10 seconds handles the high inrush currents of large motor loads — central air conditioners, well pumps, electric water heaters — without triggering BMS protection cutoffs or dropping loads during startup.

Modular & Scalable — Up to 153.6 kWh Per System: The eForce 19.2 is stackable and fully modular. Up to eight 19.2 kWh units can be connected in parallel on a single system, scaling total storage capacity from 19.2 kWh to 153.6 kWh — enabling the same base hardware to serve a small residential backup installation today and a whole-home or light commercial off-grid application as energy needs grow.

Closed-Loop BMS with RS485, Wi-Fi & CAN Communication: Native RS485, Wi-Fi, and CAN communication interfaces enable the eForce 19.2 to establish a closed-loop BMS connection with compatible inverters — passing real-time cell voltage, state of charge, temperature, and charge/discharge limits directly to the inverter's control firmware for fully coordinated, cell-level managed charging and discharging. This eliminates the voltage-only open-loop charging limitations of generic battery/inverter pairings and maximizes both cycle life and usable capacity over the life of the system.

How It Works

The eForce 19.2 operates as a 48V DC battery bank that connects to a compatible hybrid inverter (Fortress Envy 8kW, 10kW, or 12kW recommended) through the eWay combiner's integrated DC bus. The inverter manages all DC-to-AC conversion, battery charge regulation, grid interaction, and backup switching — while the eForce battery's integrated BMS communicates cell-level status data to the inverter continuously via the closed-loop communication link.

Integrated BMS — Active Cell-Level Management: Each of the two 9.6 kWh battery modules within the eForce 19.2 contains an independent Battery Management System that monitors individual cell voltage, state of charge, temperature, and health in real time. The master BMS coordinates both modules as a unified 400Ah / 48V bank and communicates charge/discharge current limits, state-of-charge percentage, and fault status to the inverter via CAN or RS485 — allowing the inverter to charge and discharge the battery at the exact current rate the cells can safely accept at that moment, rather than using fixed voltage setpoints.

Built-In Heater — Cold Weather Self-Protection: LFP cells experience significant capacity reduction and can sustain permanent damage if charged at sub-zero temperatures. The eForce 19.2's integrated temperature-controlled heater activates automatically when internal battery temperature approaches the cold threshold — warming the cells to their operational range before charge begins and maintaining thermal stability throughout cold-weather discharge events, without any user intervention or external thermostat required.

eWay Combiner — Simplified Field Wiring: The eWay wireway provides the physical and electrical interface between the stacked battery modules and the installed inverter. The integrated busbar accepts the DC output from both battery modules and routes combined DC power to the inverter via pre-terminated cables included in the kit. AC wiring from the inverter and communication cables to the BMS also route through the eWay's conduit ports, keeping all high-current connections organized, strain-relieved, and enclosed — and providing a single lockable eDisconnect point that de-energizes the entire battery bank for safe maintenance.

What's In The Kit

🔋

2 × eForce 9.6 kWh Modules

Tier-1 prismatic LFP, 200Ah each, with integrated BMS & built-in heater

⚡

eWay Combiner (AC/DC)

Integrated busbar, conduit ports, lockable eDisconnect — mounts on top of battery stack

🔌

Pre-Terminated Cables

DC battery interconnect & inverter connection cables included for fast, error-free installation

🔩

Floor-Standing Mount

Heavy-duty floor mount bracket for stable freestanding installation indoors or outdoors

Technical Specifications

Manufacturer	Fortress Power
Model	eForce 19.2
Battery Chemistry	Lithium Iron Phosphate (LFP) — Tier-1 Prismatic 15-Cell Modules
Configuration	2 × 9.6 kWh Modules Stacked Vertically (2 × 200Ah)
Nominal Energy Capacity	19.2 kWh
Nominal Capacity	400 Ah
Nominal Voltage	48 VDC
Operating Voltage Range	39V – 54V
Re-Charge Voltage	46V
Cut-Off Voltage	42V
Bulk / Absorption Charge Voltage	52.5V
Max Charge / Discharge Current	250A / 250A
Closed-Loop Charge / Discharge	240A / 250A
Open-Loop Charge / Discharge	200A / 200A
Surge Discharge Power (10s)	14,400 W (14.4 kW)
Maximum Short-Circuit Current	3,000A (5ms)
Cycle Life	8,000 Cycles @ 70% EOL Capacity
Design Life	20 Years
Communication Interfaces	RS485 \| Wi-Fi \| CAN
Compatible Inverters	Fortress Power Envy 8kW \| 10kW \| 12kW (Closed-Loop)
Max Units in Parallel	8 Units (153.6 kWh Maximum System)
Ingress Protection	IP65 — Dust-Tight & Water-Jet Protected \| Indoor or Outdoor
Operating Ambient Temperature	-4°F to 140°F (-20°C to 60°C) — Built-In Heater Active Below Threshold
Dimensions (W × D × H)	24.4" × 9.4" × 53.1" (620 × 240 × 1,351 mm)
Weight	465 lbs (210.9 kg)
Mounting Options	Floor-Standing (Included) \| Wall-Hung (Separate Accessory) \| Ground-Mount
Warranty	10-Year Standard \| Upgradeable to 30 Years with Full Fortress Envy System

Certifications & Compliance

Battery Safety: UL 1973 | UL 9540 | UL 9540A (Large-Scale Fire Testing) | UN38.3 (Transportation)
EMC / Grid: IEEE 1547 | FCC (SDOC)
Inverter Safety (Envy): UL 1741
Ingress Protection: IP65 — Suitable for Outdoor Installation Without Additional Enclosure
NEC Compliance: NEC 2020 §706 (Energy Storage Systems)
Warranty: 10-Year Standard | Up to 8,000 Cycles @ 70% EOL

Documentation

📄Datasheet (PDF)

● Available | Contact us for lead time and pricing

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Fortress Power eForce 19.2 — Outdoor LFP Battery Storage Kit

Model eForce 19.2 | 19.2 kWh | 400Ah | 48V | LFP | IP65 Outdoor Rated | Built-In Heater | Includes eWay Combiner, Cables & Floor Mount | 10-Year Warranty

19.2 kWh

Total Energy Capacity

8,000

Cycle Life @ 70% EOL

14.4 kW

Surge Discharge (10s)

IP65

Outdoor / All-Weather Rated

Product Overview

Key Benefits

How It Works

What's In The Kit

🔋

2 × eForce 9.6 kWh Modules

Tier-1 prismatic LFP, 200Ah each, with integrated BMS & built-in heater

⚡

eWay Combiner (AC/DC)

Integrated busbar, conduit ports, lockable eDisconnect — mounts on top of battery stack

🔌

Pre-Terminated Cables

DC battery interconnect & inverter connection cables included for fast, error-free installation

🔩

Floor-Standing Mount

Heavy-duty floor mount bracket for stable freestanding installation indoors or outdoors

Technical Specifications

Manufacturer	Fortress Power
Model	eForce 19.2
Battery Chemistry	Lithium Iron Phosphate (LFP) — Tier-1 Prismatic 15-Cell Modules
Configuration	2 × 9.6 kWh Modules Stacked Vertically (2 × 200Ah)
Nominal Energy Capacity	19.2 kWh
Nominal Capacity	400 Ah
Nominal Voltage	48 VDC
Operating Voltage Range	39V – 54V
Re-Charge Voltage	46V
Cut-Off Voltage	42V
Bulk / Absorption Charge Voltage	52.5V
Max Charge / Discharge Current	250A / 250A
Closed-Loop Charge / Discharge	240A / 250A
Open-Loop Charge / Discharge	200A / 200A
Surge Discharge Power (10s)	14,400 W (14.4 kW)
Maximum Short-Circuit Current	3,000A (5ms)
Cycle Life	8,000 Cycles @ 70% EOL Capacity
Design Life	20 Years
Communication Interfaces	RS485 \| Wi-Fi \| CAN
Compatible Inverters	Fortress Power Envy 8kW \| 10kW \| 12kW (Closed-Loop)
Max Units in Parallel	8 Units (153.6 kWh Maximum System)
Ingress Protection	IP65 — Dust-Tight & Water-Jet Protected \| Indoor or Outdoor
Operating Ambient Temperature	-4°F to 140°F (-20°C to 60°C) — Built-In Heater Active Below Threshold
Dimensions (W × D × H)	24.4" × 9.4" × 53.1" (620 × 240 × 1,351 mm)
Weight	465 lbs (210.9 kg)
Mounting Options	Floor-Standing (Included) \| Wall-Hung (Separate Accessory) \| Ground-Mount
Warranty	10-Year Standard \| Upgradeable to 30 Years with Full Fortress Envy System

Certifications & Compliance

Documentation

📄Datasheet (PDF)

● Available | Contact us for lead time and pricing

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Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

Jacob B

Easy Process, Genuine Support

Patrick B

Off Grid Solar Purchase

James Martin

Highly Recommend

Brian H

Solar Kit for Mobile Work Van

Keith S

Best Tech Support

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