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Fortress Power Avalon Battery Management System 1 per Battery Stack - Avalon BMS Module - AV-BMS

Fortress Power BMS Battery Storage | Portlandia Electric Supply

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SKU PES-ESS-BTS-0242

Fortress Power Avalon Battery Management System 1 per Battery Stack - Avalon BMS Module - AV-BMS

$1,523.88 USD

$ $1,523.88 USD

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In Stock

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9+ sold

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Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

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All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

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?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Fortress Power Avalon BMS module — Battery Management System (AV-BMS)

The Fortress Power Avalon Battery Management System - AV-BMS is essential for the safe and smart operation of Avalon energy storage stacks. Designed for advanced lithium stacks, it acts as the system’s brain. It constantly monitors, balances, and safeguards each battery module. Whether in residential or commercial setups, the AV-BMS guarantees long-term safety and durability.

Designed for precision, the Fortress Avalon BMS module 1 per Battery Stack is vital for every Avalon stack. It optimizes energy handling to maintain consistent performance.

Fortress Avalon BMS module functions as the “brain” of the high-voltage stack. It handles cell monitoring, pack protection, and communication. This top-mounted device offers quick installation and includes a DC breaker, power button, status LED, and ports such as BMU, Heater, COM, and P+/P− power bus.

Key features

With factory-integrated control plus communication cables (BMS→SEP & BMS→Inverter), the Fortress Avalon BMS module supports stacks of 3–6 battery modules (AV-B). ^{[installation guide]}

1 BMS per battery stack (required); fits 3–6 AV-B modules (14.7–29.4 kWh stacks)
On-board controls: latching POWER button, DC breaker, green/red status indicators
Ports: P+ / P− power, COM (CAN to SEP/PCS), BMU daisy-chain, HT heater terminals, PE ground
Included (BMS package): BMS→SEP comm cable (24 V power + CAN), BMS→Inverter comm cable; installer supplies external power and ground
Protection & ratings (stack): IP65 enclosure, CAN communications; stack allows 50 A charge/discharge, −10–50 °C charge range

Specifications

**Fortress Avalon BMS module** — specification box
System role	Controls and protects Avalon high voltage stack; interfaces with inverter & Smart Energy Panel (SEP)
Compatibility	Stacks of 3–6 AV-B modules (14.7/19.6/24.5/29.4 kWh)
Communication	CAN bus to SEP & Hybrid Inverter; BMU chain to modules
On-board interfaces	POWER button · DC breaker · P+ / P− power · COM (CAN) · BMU · HT heater · PE ground
Included cables	BMS→SEP comm cable (24 V + CAN) · BMS→Inverter comm cable (supplied)
Stack electrical (ref.)	Nominal current 50 A; voltages 144–288 V depending on 3–6 modules
Ingress protection	IP65 (stack rating)
Operating temp. (stack)	Charge −10 to 50 °C · Discharge −20 to 55 °C
Warranty (stack)	Battery limited warranty up to 15 years (see system docs)

Installers benefit from the Fortress Avalon BMS module with plug-and-play control, ensuring safer operation, solid communication, and quick commissioning. It fits cleanly in UL9540 setups with Avalon ESS.

What Is the Fortress Power Avalon Battery Management System - AV-BMS?

This system tracks battery health, voltage balance, temperature, and communication between modules and inverter. It monitors each cell’s condition in real time to prevent overcharge, deep discharge, overheating, and faults.

Proper balancing of battery stacks improves efficiency and extends lifespan. The AV-BMS works seamlessly with compatible system setups for smarter energy storage and enhanced safety.

Why the Avalon BMS Module Is Essential for Battery Stacks

Each Avalon battery stack requires a dedicated unit to manage safety and efficiency. The Fortress Avalon Battery Management System 1 per Battery Stack - Avalon BMS Module - AV-BMS assures consistent power and safe operation.

Without a correctly configured BMS, systems risk voltage imbalance, efficiency loss, and hazards. The AV-BMS delivers advanced control and safety for each stack.

Key Features of the Fortress Power Avalon Battery Management System - AV-BMS

Intelligent Battery Monitoring

The Fortress Power Avalon Battery Management System - AV-BMS tracks voltage, current, temperature, and charge state across every battery module. This real-time data ensures top performance under varied loads.

Advanced Cell Balancing

The system balances cells automatically to keep charge uniform. This approach improves efficiency and prevents premature aging.

Robust Safety Protection

Built-in safeguards protect against overvoltage, undervoltage, short circuits, overheating, and faults. These features enhance safety and prevent damage.

Seamless System Communication

The AV-BMS works efficiently with inverters and energy systems, ensuring smooth operation and accurate reporting.

Scalable and Stack-Specific Design

Designed for modular setups, the Fortress Avalon Battery Management System 1 per Battery Stack - Avalon BMS Module - AV-BMS enables scalable storage while ensuring control and protection.

Performance Benefits of Using the Fortress Power Avalon Battery Management System - AV-BMS

Installing the Fortress Power Avalon Battery Management System - AV-BMS improves reliability and lifespan of Avalon stacks. It maintains stable conditions to minimize wear and upkeep.

Optimized energy control increases efficiency. Stored power is effectively used during peak or backup demand. The AV-BMS adds system stability and reduces costs.

Ideal Applications for the Avalon BMS Module

The Fortress Avalon Battery Management System - AV-BMS suits many storage needs, including:

Residential solar energy storage systems
Commercial and industrial backup setups
Off-grid and hybrid energy systems
Load shifting and peak shaving solutions

Its intelligent control fits settings where safety and performance are both critical.

Long-Term Reliability and System Protection

Reliability defines the Fortress Power Avalon Battery Management System 1 per Battery Stack - Avalon BMS Module - AV-BMS. It is engineered for long-term use and protects battery integrity through heavy cycles and power shifts.

By detecting imbalances early, the AV-BMS ensures the stack runs efficiently as one unit. This approach reduces downtime and improves energy dependability.

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 Avalon BMS module — Battery Management System (AV-BMS)

Designed for precision, the Fortress Avalon BMS module 1 per Battery Stack is vital for every Avalon stack. It optimizes energy handling to maintain consistent performance.

Key features

With factory-integrated control plus communication cables (BMS→SEP & BMS→Inverter), the Fortress Avalon BMS module supports stacks of 3–6 battery modules (AV-B). ^{[installation guide]}

1 BMS per battery stack (required); fits 3–6 AV-B modules (14.7–29.4 kWh stacks)
On-board controls: latching POWER button, DC breaker, green/red status indicators
Ports: P+ / P− power, COM (CAN to SEP/PCS), BMU daisy-chain, HT heater terminals, PE ground
Included (BMS package): BMS→SEP comm cable (24 V power + CAN), BMS→Inverter comm cable; installer supplies external power and ground
Protection & ratings (stack): IP65 enclosure, CAN communications; stack allows 50 A charge/discharge, −10–50 °C charge range

Specifications

**Fortress Avalon BMS module** — specification box
System role	Controls and protects Avalon high voltage stack; interfaces with inverter & Smart Energy Panel (SEP)
Compatibility	Stacks of 3–6 AV-B modules (14.7/19.6/24.5/29.4 kWh)
Communication	CAN bus to SEP & Hybrid Inverter; BMU chain to modules
On-board interfaces	POWER button · DC breaker · P+ / P− power · COM (CAN) · BMU · HT heater · PE ground
Included cables	BMS→SEP comm cable (24 V + CAN) · BMS→Inverter comm cable (supplied)
Stack electrical (ref.)	Nominal current 50 A; voltages 144–288 V depending on 3–6 modules
Ingress protection	IP65 (stack rating)
Operating temp. (stack)	Charge −10 to 50 °C · Discharge −20 to 55 °C
Warranty (stack)	Battery limited warranty up to 15 years (see system docs)

What Is the Fortress Power Avalon Battery Management System - AV-BMS?

Proper balancing of battery stacks improves efficiency and extends lifespan. The AV-BMS works seamlessly with compatible system setups for smarter energy storage and enhanced safety.

Why the Avalon BMS Module Is Essential for Battery Stacks

Without a correctly configured BMS, systems risk voltage imbalance, efficiency loss, and hazards. The AV-BMS delivers advanced control and safety for each stack.

Key Features of the Fortress Power Avalon Battery Management System - AV-BMS

Intelligent Battery Monitoring

Advanced Cell Balancing

The system balances cells automatically to keep charge uniform. This approach improves efficiency and prevents premature aging.

Robust Safety Protection

Built-in safeguards protect against overvoltage, undervoltage, short circuits, overheating, and faults. These features enhance safety and prevent damage.

Seamless System Communication

The AV-BMS works efficiently with inverters and energy systems, ensuring smooth operation and accurate reporting.

Scalable and Stack-Specific Design

Designed for modular setups, the Fortress Avalon Battery Management System 1 per Battery Stack - Avalon BMS Module - AV-BMS enables scalable storage while ensuring control and protection.

Performance Benefits of Using the Fortress Power Avalon Battery Management System - AV-BMS

Installing the Fortress Power Avalon Battery Management System - AV-BMS improves reliability and lifespan of Avalon stacks. It maintains stable conditions to minimize wear and upkeep.

Optimized energy control increases efficiency. Stored power is effectively used during peak or backup demand. The AV-BMS adds system stability and reduces costs.

Ideal Applications for the Avalon BMS Module

The Fortress Avalon Battery Management System - AV-BMS suits many storage needs, including:

Residential solar energy storage systems
Commercial and industrial backup setups
Off-grid and hybrid energy systems
Load shifting and peak shaving solutions

Its intelligent control fits settings where safety and performance are both critical.

Long-Term Reliability and System Protection

By detecting imbalances early, the AV-BMS ensures the stack runs efficiently as one unit. This approach reduces downtime and improves energy dependability.

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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

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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!

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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

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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

Coll A

Great Experience