What is the HomeGrid 4.8kWh Battery Module HG-FS48100-15OSJ1?

The HomeGrid 4.8kWh Battery Module HG-FS48100-15OSJ1 is a lithium iron phosphate (LiFePO4) energy storage solution designed for residential, commercial, and industrial applications. It offers high efficiency, long cycle life, and modular scalability within HomeGrid Stack’d and LV Series systems.

What type of battery chemistry does the HomeGrid HG-FS48100-15OSJ1 use?

This battery module uses LiFePO4 (Lithium Iron Phosphate) chemistry, which is known for enhanced safety, thermal stability, long lifespan, and environmentally friendly performance compared to other lithium technologies.

How much energy does the HomeGrid 4.8kWh battery store?

The module provides 4.8 kWh of nominal energy with a 51.2V nominal voltage and a 100Ah capacity, making it suitable for both backup power and daily energy cycling.

Can the HomeGrid HG-FS48100-15OSJ1 be expanded?

Yes, the HomeGrid 4.8kWh Battery Module is fully modular and can be stacked in parallel to expand total storage capacity, from small residential systems to large-scale multi-megawatt-hour installations.

Does the HomeGrid battery include a Battery Management System (BMS)?

Yes, it features an integrated BMS that continuously monitors voltage, current, and temperature to ensure safe operation, balanced cell performance, and real-time system protection.

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HomeGrid 4.8kWh Battery Module – HG-FS48100-15OSJ1

HomeGrid 4.8kWh Battery Module HG-FS48100-15OSJ1

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HomeGrid 4.8kWh Battery Module – HG-FS48100-15OSJ1

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SKU PES-ESS-BTS-0358

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$1,884.30 USD

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SKU: PES-ESS-BTS-0358
MPN: HG-FS48100-15OSJ1

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HomeGrid 4.8kWh Battery Module – HG-FS48100-15OSJ1 $1,884.30

Specifications

Capacity 4.8kWh

Product Category Battery

What is your return policy?

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.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

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.

HomeGrid 4.8kWh Battery Module – HG-FS48100-15OSJ1

The HomeGrid HG-FS48100-15OSJ1 4.8kWh Battery Module delivers reliable, modular, and scalable energy storage designed for both residential and commercial applications. Built with high-quality lithium iron phosphate (LiFePO4) chemistry, this module ensures safety, long cycle life, and exceptional thermal stability. It integrates seamlessly into HomeGrid’s Stack’d and LV Series systems, offering easy expandability and compatibility with leading inverter brands.

Product Overview

The HomeGrid 4.8kWh module is a core component of the Stack’d energy storage platform, providing 51.2V nominal voltage and up to 100Ah capacity. Its integrated Battery Management System (BMS) enhances performance, enables real-time monitoring, and ensures safety across all operating conditions. This model includes an internal heating feature to maintain performance even in cold weather environments.

Key Features

1. Modular Expandability

Designed to be stacked in parallel for flexible energy capacity expansion up to multiple MWh systems.

2. Safe LiFePO4 Chemistry

Utilizes lithium iron phosphate cells known for superior thermal stability and non-toxic performance.

3. Integrated BMS

Monitors voltage, current, and temperature, ensuring balanced and safe operation across cells and modules.

4. High Round-Trip Efficiency

Delivers over 95% energy efficiency for optimal charge/discharge performance.

5. Heating Functionality

Maintains operational performance in cold environments via integrated heating components.

6. Long Service Life

Rated for up to 6,000 cycles at 80% depth of discharge for dependable, long-term storage.

7. Plug-and-Play Installation

Quick, tool-free setup with standardized connection ports and smart module communication.

Applications

Residential solar + storage systems
Commercial and industrial backup
Microgrid and off-grid applications
EV charging and energy management systems

Technical Specifications

Model	HG-FS48100-15OSJ1
Nominal Energy	4.8 kWh
Nominal Voltage	51.2 VDC
Nominal Capacity	100 Ah
Battery Chemistry	LiFePO4 (Lithium Iron Phosphate)
Operating Voltage Range	44.8 – 56.5 VDC
Cycle Life	>6,000 cycles @ 80% DOD
Round Trip Efficiency	>95%
Communication Interfaces	CAN, RS485
Enclosure Rating	IP65 (Indoor/Outdoor)
Operating Temperature	-4°F to 122°F (-20°C to 50°C)
Heating Function	Yes, Integrated
Dimensions (H × W × D)	17.7 × 19.6 × 5.5 in
Weight	97 lb
Warranty	10 Years Limited

Certifications

UL 9540A Certified
UL 1973 & UL 9540 Compliant
UN 38.3 Tested for Transport Safety
IEC 62619 Certified

Downloads

HomeGrid 4.8kWh Battery Module Datasheet

Specifications & Documents: Full specifications & datasheet for HomeGrid 4.8kWh Battery Module – HG-FS48100-15OSJ1

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?

HomeGrid 4.8kWh Battery Module – HG-FS48100-15OSJ1

Product Overview

Key Features

1. Modular Expandability

Designed to be stacked in parallel for flexible energy capacity expansion up to multiple MWh systems.

2. Safe LiFePO4 Chemistry

Utilizes lithium iron phosphate cells known for superior thermal stability and non-toxic performance.

3. Integrated BMS

Monitors voltage, current, and temperature, ensuring balanced and safe operation across cells and modules.

4. High Round-Trip Efficiency

Delivers over 95% energy efficiency for optimal charge/discharge performance.

5. Heating Functionality

Maintains operational performance in cold environments via integrated heating components.

6. Long Service Life

Rated for up to 6,000 cycles at 80% depth of discharge for dependable, long-term storage.

7. Plug-and-Play Installation

Quick, tool-free setup with standardized connection ports and smart module communication.

Applications

Residential solar + storage systems
Commercial and industrial backup
Microgrid and off-grid applications
EV charging and energy management systems

Technical Specifications

Model	HG-FS48100-15OSJ1
Nominal Energy	4.8 kWh
Nominal Voltage	51.2 VDC
Nominal Capacity	100 Ah
Battery Chemistry	LiFePO4 (Lithium Iron Phosphate)
Operating Voltage Range	44.8 – 56.5 VDC
Cycle Life	>6,000 cycles @ 80% DOD
Round Trip Efficiency	>95%
Communication Interfaces	CAN, RS485
Enclosure Rating	IP65 (Indoor/Outdoor)
Operating Temperature	-4°F to 122°F (-20°C to 50°C)
Heating Function	Yes, Integrated
Dimensions (H × W × D)	17.7 × 19.6 × 5.5 in
Weight	97 lb
Warranty	10 Years Limited

Certifications

UL 9540A Certified
UL 1973 & UL 9540 Compliant
UN 38.3 Tested for Transport Safety
IEC 62619 Certified

Downloads

HomeGrid 4.8kWh Battery Module Datasheet

Specifications & Documents: Full specifications & datasheet for HomeGrid 4.8kWh Battery Module – HG-FS48100-15OSJ1

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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.

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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.

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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

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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!

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Great Experience

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Highly Recommend

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