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The EG4 WallMount 280Ah Indoor Lithium Battery Delivers Reliable Energy Storage So That Your Power Stays On When It Matters Most
When power outages interrupt your day or energy costs keep climbing, you need a battery system that works quietly in the background and performs when you need it most. The EG4 WallMount 280Ah Indoor Lithium Battery is built for dependable, long-term energy storage, giving homeowners, RVers, and off-grid users confidence and control over their power.
With a robust 14.3kWh capacity, this indoor wall-mounted battery provides consistent backup energy for essential appliances, tools, and systems. Whether you are preparing for outages, optimizing solar usage, or building a complete off-grid setup, this system is designed to keep your life running smoothly.
At its core is advanced lithium iron phosphate chemistry, widely known for its safety, stability, and long lifespan. Unlike traditional lead-acid batteries that degrade quickly and require frequent maintenance, this system delivers over 8,000 cycles at 80% depth of discharge. That means years of reliable performance without constant replacements or upkeep.
EG4 WallMount 280Ah Indoor Lithium Battery Features
High Capacity Energy Storage So That You Can Power More With Confidence
With 14.3kWh of usable energy, this battery supports essential appliances, lighting, and electronics during outages or off-grid use. It gives you dependable power coverage for longer periods without worrying about sudden interruptions.
Long Cycle Life For Reliable Power Over Many Years
Delivering over 8,000 charge cycles at 80% depth of discharge, this system is built for longevity. Compared to traditional batteries, it reduces replacement costs and provides consistent performance year after year.
Advanced Battery Management System For Safe And Stable Operation
The integrated BMS continuously monitors voltage, temperature, and performance to protect your system. This ensures safe operation while maximizing efficiency, helping you get the most out of every charge cycle.
LCD Touchscreen Display So That You Stay In Control At All Times
The built-in display provides real-time data on battery performance, charge levels, and system health. This makes it easy to monitor and manage your energy system without complex tools or guesswork.
Automatic Self Heating For Reliable Performance In Cold Conditions
Cold weather can impact battery efficiency, but the automatic self-heating feature keeps the system operating smoothly. This ensures consistent performance even in lower temperature environments.
Emergency Stop Function For Immediate System Shutdown When Needed
Safety is a priority with the integrated emergency stop feature. It allows you to quickly shut down the system in critical situations, giving you added peace of mind during operation.
Seamless Inverter Integration For Flexible Energy System Design
With RS485 and CANBus communication, this battery connects easily with leading hybrid inverters. It supports both grid-tied and off-grid setups, making it adaptable to a wide range of energy systems.
Get answers to the most frequently-asked questions customers ask before placing an order.
Is Outbound Power an Authorized Dealer?
Yes! Outbound Power is an Authorized Dealer for every single brand and product on our store.
How long will it take for my order to arrive?
Shipping times vary depending on your location and the product or products ordered.
Order Processing Time Most products are processed within 1-3 business days. If there is a delay in processing your order, we will alert you with as much information as possible about what to expect.
After order processing is complete, you will receive tracking information to monitor your order while it is in transit.
Order Shipping Time Following processing, it may take between 3 and 8 days to arrive, depending on your location.
Please refer to the product page for your item and reference the estimated delivery time frame for more details.
Additionally, you can see the estimated delivery time frame during checkout and receive a tracking number once your order ships.
What are your shipping rates? Do you offer free shipping?
Everything on our store ships for free. Really!
What is Outbound Power's return policy?
Most items may be returned within 30 days of delivery. Please refer to our Returns & Exchanges policy to determine what items are eligible. Returns are not accepted beyond 30 days following delivery.
Are Outbound Power products used/old/refurbished?
Everything sold on our website is brand-new.
Do you price match?
No — we price BEAT! Please refer to our Price Beat Promise for full details.
Great pricing. When I am ready to upgrade, I plan on doing business with you all again. You value customers and that is greatly appreciated. Thanks for everything.
Thank you for your kind words and support! We’re glad to hear you’re satisfied with our pricing and service. We look forward to assisting you with your upgrade when you’re ready. Thanks again for choosing Outbound Power, and please let us know if we can ever be of service.
Exact fit to the Cummins 4500i small battery compartment.
Thank you for your great review! We're glad the battery fit perfectly and met your expectations. If you need anything else, please don’t hesitate to reach out, we’re always here to help.
Hi Sam, thank you for your fantastic review! We're so glad to hear the Pecron Trolley Kit works great for you. If you need any further assistance, feel free to reach out. Cheers!
This was purchased to run a small compressor when our crews are on job sites where running and moving power cords is inconvenient and time consuming. The generator is lightweight and perfect for the task. We're now investing in a second unit.
Thank you for the great review! We’re glad to hear it is making work easier. We truly appreciate your business. Please let us know if there is anything more we can do to be of service!
I like outbound because they give a good deal discount called. They help when you call nice people when you call the number they answer and help thank you
Hi Melvin, thank you for your kind words! We're glad you had a great experience and appreciate your support. If you need anything else, we're here to help!
Excellent service with excellent pricing. By far the best price I could find on the battery. Delivery arrived in perfect condition. love all the tracking information.
Thank you so much for the kind review! We’re glad we could provide a great price and that everything arrived to your satisfaction. We also appreciate you mentioning the tracking updates. We want every customer to feel informed and confident from order to delivery. Thanks again for choosing Outbound Power and please let us know if we can ever be of service!
Thank you for the positive feedback! We strive to provide excellent customer service and we're glad to hear that you had a great experience with us. We appreciate your support and hope to continue serving you in the future!
Outbound Power did a great job with communication and answered all my presale questions. Shipping was prompt - and was patient with me during a small snafu when my neighbor was being “helpful” and took one of the boxes and neglected to tell me. Great prices too!
Hi James, thank you for taking the time to leave us a review. We are thrilled to hear that you had a positive experience with our team! Thank you for your business and please feel welcome to reach out anytime if we can be of service!
Fantastic service from Jam at Outbound Power made this an easy choice.
We are in the installation phase now and are excited to have a reliable system for our power backup needs.
Thank you for your kind words and for choosing Outbound Power for your backup power needs. We're happy to hear that Jam provided fantastic service and helped make the decision process easy for you. Our goal is always to help customers find a reliable backup power solution that fits their needs.
We’re excited for you to begin the installation phase and are confident you’ll be pleased with the Anker SOLIX E10 Smart Hybrid Whole-Home Backup System. Thank you again for choosing Outbound Power!
This works very well. I can charge my unit and expansion batteries more than twice as fast as using a 120 volt wall outlet. I think it also helps with the battery temperature.
Hi there, thank you for your positive feedback! We're glad to hear that the cable is working well for you and is able to charge your unit and expansion batteries at a faster rate. If we can be of service again, please let us know!