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Unlimited lifetime support, always available.
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EG4-18KPV-12LV Inverter + EG4 PowerPro 14.3kWh Battery | 18,000W PV Input | 12,000W AC Output | Indoor / Outdoor | UL1973 & UL9540A Certified
The EG4 18K Battery Storage Bundle is a fully integrated, all-weather energy storage solution combining the EG4 18kPV Hybrid Inverter (Model: EG4-18KPV-12LV) with the EG4 PowerPro 14.3kWh LiFePO4 battery and conduit box — delivering a plug-and-play system engineered for residential solar, commercial backup, off-grid installations, and outdoor deployments. With 18,000W of PV input capacity, 12,000W of continuous AC output, self-heating battery technology for cold climates, and closed-loop inverter-battery communication, this bundle eliminates the need for external charge controllers or transformers. Backed by a 10-year manufacturer's warranty and certified to UL1973 and UL9540A, it is built for energy independence at scale.
Built for Outdoor & All-Weather Operation: The weather-sealed hybrid inverter and all-weather PowerPro battery enclosure are engineered for both indoor and outdoor installation — including extreme temperature environments. The battery's integrated self-heating technology automatically activates in cold climates to maintain optimal charging and discharging performance year-round.
High-Capacity Solar Input & AC Output: The EG4 18kPV inverter accepts up to 18,000W of PV array input and delivers a rock-solid 12,000W of continuous AC output on a 120/240V split-phase configuration — providing ample power for high-demand residential appliances, commercial loads, and critical backup circuits simultaneously.
Expandable LiFePO4 Storage: The included 48V / 280Ah / 14.3kWh LiFePO4 battery can be doubled to 28.6kWh by adding a second EG4 PowerPro unit via optional battery paralleling cables — giving system owners the flexibility to start smaller and scale storage capacity as energy needs grow, without replacing any existing hardware.
Plug-and-Play Installation — No External Controllers Needed: Closed-loop communication between the inverter and battery enables fully automatic, coordinated charge and discharge management straight out of the box — eliminating the need for external charge controllers, transformers, or complex BMS configuration, and dramatically reducing installation time and cost.
LCD Display & App Monitoring: An onboard LCD screen provides real-time visibility into system performance, battery state of charge, PV input, and AC output — with optional app connectivity enabling remote monitoring and control from any smartphone, giving installers and homeowners full system visibility at all times.
Industry-Leading Safety Certifications: Certified to UL1973 and UL9540A, the bundle features dual built-in fire arrestors, an emergency stop function, and LiFePO4 chemistry's inherent thermal stability — providing multi-layer protection against electrical faults, thermal events, and fire hazards throughout the system's 8,000+ cycle lifetime.
The EG4 18kPV Hybrid Inverter manages all energy flows within the system — accepting up to 18,000W of DC solar input, converting it to 120/240V AC for home or business use, and simultaneously directing surplus energy into the PowerPro LiFePO4 battery bank for later use. During grid outages, the system seamlessly switches to battery backup, and the closed-loop communication protocol between inverter and battery ensures that charging rates, voltage limits, and state-of-charge parameters are always precisely coordinated without manual intervention.
Hybrid Inverter & MPPT Solar Charging: The 18kPV inverter's built-in MPPT solar charge controller continuously tracks the maximum power point of the connected PV array, harvesting maximum energy and routing it to loads and battery storage — operating in grid-tied, off-grid, or hybrid backup modes based on grid availability and system configuration.
Closed-Loop Battery Communication: The inverter and PowerPro battery exchange real-time data via a closed-loop communication protocol, automatically adjusting charge current, discharge limits, and cell balancing parameters — ensuring the battery is always operated within safe, optimal parameters for maximum lifespan and efficiency without any manual BMS configuration.
Self-Heating & Thermal Management: In cold ambient conditions, the PowerPro battery's integrated self-heating system automatically warms the LiFePO4 cells to the minimum operating threshold before initiating charging — preventing capacity loss, cell damage, and shortened lifespan that can occur when lithium batteries are charged at sub-zero temperatures.
EG4 18kPV Hybrid Inverter — Model EG4-18KPV-12LV
| Max PV Solar Input | 18,000 W |
| Continuous AC Output | 12,000 W |
| System Voltage | 48V DC |
| AC Output Configuration | 120/240V Split Phase |
| Communication Protocol | Closed-Loop (Inverter ↔ Battery) |
| Display | LCD Screen + Optional App Connectivity |
| Installation | Indoor or Outdoor — Weather-Sealed Enclosure |
EG4 PowerPro All-Weather LiFePO4 Battery
| Battery Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Nominal Voltage | 48V |
| Capacity | 280Ah | 14.3 kWh |
| Expandable Capacity | Up to 28.6 kWh (2 batteries in parallel) |
| Cycle Life | 8,000+ Cycles @ 80% Depth of Discharge |
| Cold Climate Feature | Integrated Self-Heating Technology |
| Certifications | UL1973, UL9540A |
Bundle Summary
| Bundle Name | EG4 18K Battery Storage Bundle |
| Safety Features | Dual Fire Arrestors, Emergency Stop Function |
| Warranty | 10-Year Manufacturer Warranty — EG4 Electronics |
Included in Bundle
➕ Optional Add-On
Battery Certifications: UL1973, UL9540A — Battery-level and system-level fire and safety testing
Battery Chemistry: LiFePO4 — Inherently stable, non-flammable lithium chemistry
Fire Safety: Dual built-in fire arrestors + emergency stop function
Warranty: 10-Year Manufacturer Warranty — EG4 Electronics
● Available | Contact us for lead time and pricing
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.
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.
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.
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.
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.
EG4-18KPV-12LV Inverter + EG4 PowerPro 14.3kWh Battery | 18,000W PV Input | 12,000W AC Output | Indoor / Outdoor | UL1973 & UL9540A Certified
The EG4 18K Battery Storage Bundle is a fully integrated, all-weather energy storage solution combining the EG4 18kPV Hybrid Inverter (Model: EG4-18KPV-12LV) with the EG4 PowerPro 14.3kWh LiFePO4 battery and conduit box — delivering a plug-and-play system engineered for residential solar, commercial backup, off-grid installations, and outdoor deployments. With 18,000W of PV input capacity, 12,000W of continuous AC output, self-heating battery technology for cold climates, and closed-loop inverter-battery communication, this bundle eliminates the need for external charge controllers or transformers. Backed by a 10-year manufacturer's warranty and certified to UL1973 and UL9540A, it is built for energy independence at scale.
Built for Outdoor & All-Weather Operation: The weather-sealed hybrid inverter and all-weather PowerPro battery enclosure are engineered for both indoor and outdoor installation — including extreme temperature environments. The battery's integrated self-heating technology automatically activates in cold climates to maintain optimal charging and discharging performance year-round.
High-Capacity Solar Input & AC Output: The EG4 18kPV inverter accepts up to 18,000W of PV array input and delivers a rock-solid 12,000W of continuous AC output on a 120/240V split-phase configuration — providing ample power for high-demand residential appliances, commercial loads, and critical backup circuits simultaneously.
Expandable LiFePO4 Storage: The included 48V / 280Ah / 14.3kWh LiFePO4 battery can be doubled to 28.6kWh by adding a second EG4 PowerPro unit via optional battery paralleling cables — giving system owners the flexibility to start smaller and scale storage capacity as energy needs grow, without replacing any existing hardware.
Plug-and-Play Installation — No External Controllers Needed: Closed-loop communication between the inverter and battery enables fully automatic, coordinated charge and discharge management straight out of the box — eliminating the need for external charge controllers, transformers, or complex BMS configuration, and dramatically reducing installation time and cost.
LCD Display & App Monitoring: An onboard LCD screen provides real-time visibility into system performance, battery state of charge, PV input, and AC output — with optional app connectivity enabling remote monitoring and control from any smartphone, giving installers and homeowners full system visibility at all times.
Industry-Leading Safety Certifications: Certified to UL1973 and UL9540A, the bundle features dual built-in fire arrestors, an emergency stop function, and LiFePO4 chemistry's inherent thermal stability — providing multi-layer protection against electrical faults, thermal events, and fire hazards throughout the system's 8,000+ cycle lifetime.
The EG4 18kPV Hybrid Inverter manages all energy flows within the system — accepting up to 18,000W of DC solar input, converting it to 120/240V AC for home or business use, and simultaneously directing surplus energy into the PowerPro LiFePO4 battery bank for later use. During grid outages, the system seamlessly switches to battery backup, and the closed-loop communication protocol between inverter and battery ensures that charging rates, voltage limits, and state-of-charge parameters are always precisely coordinated without manual intervention.
Hybrid Inverter & MPPT Solar Charging: The 18kPV inverter's built-in MPPT solar charge controller continuously tracks the maximum power point of the connected PV array, harvesting maximum energy and routing it to loads and battery storage — operating in grid-tied, off-grid, or hybrid backup modes based on grid availability and system configuration.
Closed-Loop Battery Communication: The inverter and PowerPro battery exchange real-time data via a closed-loop communication protocol, automatically adjusting charge current, discharge limits, and cell balancing parameters — ensuring the battery is always operated within safe, optimal parameters for maximum lifespan and efficiency without any manual BMS configuration.
Self-Heating & Thermal Management: In cold ambient conditions, the PowerPro battery's integrated self-heating system automatically warms the LiFePO4 cells to the minimum operating threshold before initiating charging — preventing capacity loss, cell damage, and shortened lifespan that can occur when lithium batteries are charged at sub-zero temperatures.
EG4 18kPV Hybrid Inverter — Model EG4-18KPV-12LV
| Max PV Solar Input | 18,000 W |
| Continuous AC Output | 12,000 W |
| System Voltage | 48V DC |
| AC Output Configuration | 120/240V Split Phase |
| Communication Protocol | Closed-Loop (Inverter ↔ Battery) |
| Display | LCD Screen + Optional App Connectivity |
| Installation | Indoor or Outdoor — Weather-Sealed Enclosure |
EG4 PowerPro All-Weather LiFePO4 Battery
| Battery Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Nominal Voltage | 48V |
| Capacity | 280Ah | 14.3 kWh |
| Expandable Capacity | Up to 28.6 kWh (2 batteries in parallel) |
| Cycle Life | 8,000+ Cycles @ 80% Depth of Discharge |
| Cold Climate Feature | Integrated Self-Heating Technology |
| Certifications | UL1973, UL9540A |
Bundle Summary
| Bundle Name | EG4 18K Battery Storage Bundle |
| Safety Features | Dual Fire Arrestors, Emergency Stop Function |
| Warranty | 10-Year Manufacturer Warranty — EG4 Electronics |
Included in Bundle
➕ Optional Add-On
Battery Certifications: UL1973, UL9540A — Battery-level and system-level fire and safety testing
Battery Chemistry: LiFePO4 — Inherently stable, non-flammable lithium chemistry
Fire Safety: Dual built-in fire arrestors + emergency stop function
Warranty: 10-Year Manufacturer Warranty — EG4 Electronics
● Available | Contact us for lead time and pricing
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.
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.
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.
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.
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.
From hurricanes to blackouts, reliable solar power ensures you're able to keep your home & family safe no matter what comes your way.
Making one-click solar solutions simple since 2018. Whether you’re powering a cabin, charging devices, or backing up your home.
Say goodbye to reliance on the energy companies. Enjoy the same freedom that 50,000+ customers have with their own solar power system.
Troy P
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
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
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
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
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
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
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
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
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
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
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
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
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
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.
Shop Securely, Trusted Supplier, 100% Satisfaction
Trusted Company, Real Products, Lifetime Support
Avoid Scams, Buy with Confidence, Enjoy Peace of Mind
Manufacturer Warranty, Exceptional Service
Shop Securely, Trusted Supplier, 100% Satisfaction
Trusted Company, Real Products, Lifetime Support
Avoid Scams, Buy with Confidence, Enjoy Peace of Mind
Manufacturer Warranty, Exceptional Service
Shop Securely, Trusted Supplier, 100% Satisfaction
Trusted Company, Real Products, Lifetime Support
Avoid Scams, Buy with Confidence, Enjoy Peace of Mind
Manufacturer Warranty, Exceptional Service
Shop Securely, Trusted Supplier, 100% Satisfaction
Trusted Company, Real Products, Lifetime Support
Avoid Scams, Buy with Confidence, Enjoy Peace of Mind
Manufacturer Warranty, Exceptional Service
Shop Securely, Trusted Supplier, 100% Satisfaction
Trusted Company, Real Products, Lifetime Support
Avoid Scams, Buy with Confidence, Enjoy Peace of Mind
Manufacturer Warranty, Exceptional Service
Shop Securely, Trusted Supplier, 100% Satisfaction
Trusted Company, Real Products, Lifetime Support
Avoid Scams, Buy with Confidence, Enjoy Peace of Mind
Manufacturer Warranty, Exceptional Service
Shop Securely, Trusted Supplier, 100% Satisfaction
Trusted Company, Real Products, Lifetime Support
Avoid Scams, Buy with Confidence, Enjoy Peace of Mind
Manufacturer Warranty, Exceptional Service
Shop Securely, Trusted Supplier, 100% Satisfaction
Trusted Company, Real Products, Lifetime Support
Avoid Scams, Buy with Confidence, Enjoy Peace of Mind
Manufacturer Warranty, Exceptional Service
Shop Securely, Trusted Supplier, 100% Satisfaction
Trusted Company, Real Products, Lifetime Support
Avoid Scams, Buy with Confidence, Enjoy Peace of Mind
Manufacturer Warranty, Exceptional Service
Shop Securely, Trusted Supplier, 100% Satisfaction
Trusted Company, Real Products, Lifetime Support
Avoid Scams, Buy with Confidence, Enjoy Peace of Mind
Manufacturer Warranty, Exceptional Service
When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.
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