Skip to content
Description Specs FAQs Documents Reviews
EG4 PowerPro WallMount 48V 280Ah (14.3kWh) All Weather LiFePO4 Battery (2-6 Battery Bundles)
by EG4

EG4 PowerPro WallMount 48V 280Ah (14.3kWh) All Weather LiFePO4 Battery (2-6 Battery Bundles)

SKU: EG4LIFPOW4-48V280A-2
Sold out
$9,442.49
$9,442.49 - $28,326.24
$9,442.49
$7,553.99
$7,553.99 - $22,660.99
$7,553.99
Availability:
Out of stock
Availability:
Out of stock
Availability:
Out of stock
Availability:
Out of stock
Availability:
Out of stock
Quantity Options: 2 x Lithium Batteries

Free Shipping

Enjoy free shipping on all products from Off Grid Stores

Limited Sales Tax Collection

In compliance with state regulations, we must charge sales tax in: AZ, CA, CO, FL, GA, IL, IN, ME, MI, MD, MN, MO, NC, NJ, NV, OH, PA, SC, TN, TX, UT, VA, WA, and WI.

If your state isn’t listed — no tax!

Authorized Dealer

We are authorized dealers of every brand on our website

Found a lower price?

Let us know and we’ll do our best to beat it. We work hard to offer you the best value online.

Live Chat for Price Help

10-Year Warranty

Off Grid Stores is an authorized retailer of EG4 products. Because of this, we pass on EG4's manufacturer warranty to you.

Best Price Guarantee

We work hard to offer fair, competitive prices on everything we sell.

If you find the same item listed for less on a competitor’s site, let us know — and we’ll do our best to match it.

Just reach out to our customer service team before purchasing to see what we can do.

You can learn more by visiting our Best Price Request page here.

Shipping & Handling

We provide Free Shipping to the continental 48 United States only.

International shipping, as well as shipping to Alaska, Hawaii, US Protectorates, P.O. Boxes, APO, FPO, or DPO addresses, is NOT available.

Orders are typically processed and shipped from our warehouse within 1-3 Business Days (excluding weekends and holidays).

After leaving our warehouse, the expected delivery time is 3-4 Business Days, resulting in an average total shipping and handling time of 4-7 Business Days.

Learn more about our Shipping & Handling Policy here.

Returns & Refunds

While shopping at Off Grid Stores know that returns are a breeze! If you are not completely satisfied with your purchase, for any reason, you may return it to us within 30 Days of delivery for a refund.

If you would like to open up a return you can send us an email to support@offgridstores.com with your name, order number, and reason for return.

To learn more about our Returns & Refunds Policy you can do so here.

Why Choose Off Grid Stores?
  • Trusted by Thousands: We’ve served over 15,000 customers and counting — your satisfaction is our priority.
  • Real Expertise: Our team has hands-on experience with the products we sell — we actually use them ourselves.
  • U.S.-Based Support: When you reach out, you’ll talk to a real person here in the USA, not someone overseas.
  • Fast, Reliable Shipping: All products ship from U.S. warehouses for quicker, hassle-free delivery.
  • Authorized Dealer: We're official partners with every brand we carry, so your purchase is backed by full manufacturer warranty and support.

EG4 PowerPro WallMount 48V 280Ah (14.3kWh) All Weather LiFePO4 Battery (2-6 Battery Bundles)

EG4 PowerPro WallMount 48V 280Ah (14.3kWh) All Weather LiFePO4 Battery (2-6 Battery Bundles)

EG4 WallMount All Weather Lithium Battery | 48V 280Ah | 14.3kWh LiFePO4 | All-Weather Energy Storage 

The EG4 14.3kWh PowerPro WallMount Battery is a high-capacity energy storage solution designed for outdoor reliability and seamless system integration. Built with an all-weather IP65-rated enclosure and quick-connect battery cables, it’s ideal for residential or commercial installations in any climate. Its smart Battery Management System continuously monitors performance to maximize safety and efficiency, while integrated self-heating ensures dependable operation even in freezing temperatures. Dual onboard fire arrestors and an emergency stop function offer added protection and peace of mind. The PowerPro pairs effortlessly with top inverter brands like EG4, Sol-Ark, Victron, and Growatt, and includes a built-in LCD touchscreen for easy monitoring. Certified to meet UL9540A, UL1973, and UL9540 standards, and backed by a 10-year warranty, this battery delivers long-term power you can count on.

Key Features:

  • Smart Battery Management System – Actively monitors voltage, temperature, and performance to ensure safe, efficient, and reliable operation.
  • Quick-Connect Battery Cables – Simplify installation with fast, secure, and weather-rated connections
  • Integrated Self-Heating – Automatically warms the battery in low temperatures to maintain optimal performance in cold climates.
  • All-Weather Design – IP65-rated enclosure and weather-rated quick connectors allow for safe outdoor installation in various environments.
  • Dual Fire Arrestors – Provide added safety by preventing thermal runaway and containing potential fire risks.
  • Emergency Stop Function – Enables complete system shutdown via RSD, ESS disconnect, or inverter RSD for fast response in critical situations.
  • Certified for Safety – UL9540A tested, UL1973 certified, and UL9540 listed with EG4 18kPV for trusted compliance and performance.

Specifications:

EG4 48V 280Ah WallMount All Weather Lithium Battery
MODULE OPERATING PARAMETERS
Parameter BMS Recommended Charger Settings
Total Energy Capacity 14.3kWh @25C, 100% SOC -
Voltage 51.2V -
Capacity 280Ah ±2% @25°C ±2°C @ 0.5C
Charging Voltage (Bulk/Absorb) 56.0V (±0.8V) 56.2V (±0.2V)
Float - 54V (±0.2V)
SOC Cutoff - 20%*
Charge Current 140A Max. Continuous 60 – 140A
Discharge Current 140A Max. Continuous 60 – 140A
BMS PARAMETERS
Charge Spec Delay Recovery
Cell Voltage Protection 3.8V 1 sec 45V
Module Voltage Protection 60V 1 sec 55.2V
Charge Over-Current 1 >205A 10 sec -
Charge Over-Current 2 >225A 3 sec -
Temperature Protection <23°F or >158°F 1 sec >32°F or <140°F
Discharge
Cell Voltage Protection 2.3V 1 sec 3.1V
Module Voltage Protection 44.8V 1 sec 48V
Charge Over-Current 1 >205A 10 sec 60 sec
Charge Over-Current 2 >300A 3 sec 60 sec
Short Circuit >600A <0.1 ms -
Temperature Protection <-4°F or >167°F 1 sec >14°F or <149°F
PCB Temperature Protection >230°F 1 sec @ <176°F
GENERAL SPECIFICATIONS
Parameter Spec Condition
Cell Balance 120mA Passive Balance Cell Voltage Difference >40mV
Temperature Accuracy 3% Cycle Measurement Measure Range:-40°F – ≈212°F
Voltage Accuracy 0.5% Cycle Measurement Cells & Module
Current Accuracy 3% Cycle Measurement Measure Range:-200-200A
SOC 5% Integral Calculation
Power Consumption (Standby) <300uA Standby/Storage
Power Consumption (Operating) <25mA Charging/Discharging
Communication Ports RS485/CAN Customizable
BATTERY HEATER SPECIFICATIONS
Parameter Spec Condition Spec Condition
Voltage 56V -
Power Consumption 224W -
Internal Battery Temperature ≤32°F or ≥41°F Heat On/Heat Off
ENVIRONMENTAL PARAMETERS
Charging Range 32°F to ≈122°F
Discharging Range -4°F to ≈131°F
Storage Range 32°F to ≈113°F
Operating Altitude <16404 ft. (<5000 m)
Ingress Protection IP65
PHYSICAL SPECIFICATIONS
Dimensions (H × W × D) 36.2 in × 20.2 in × 9.1 in.
Weight 308.6 lbs. (140 kg)
Design Life >15 years
Cycle Life >8000 Cycles @ 0.5C 80% DOD
Lifetime Production 82.6MWh**
SAFETY CERTIFICATIONS
Certifications UL1973, UL9540A (Passed)

Frequently Asked Questions

What is PowerPro Wallmount

It is a 48V LFP battery, 16 cell 280Ah with capacity of 14.3kWh

Is it battery or inverter or combination of both?

PowerPro Wallmount is a LFP battery

Can I use any inverter in the market with this battery?

Yes, you can.

What’s the recommended inverter for this battery?

EG4-18kPV with the conduit box

Can I add multiple WallMounts together?

Yes, you can do that in parallel. Each battery is provided with 4 connection slots that can accommodate 2/0 wires. You can daisy chain them for your scalability needs.

What connection cables does it come with?

Each battery comes with two sets of outdoor rated battery connectors 2/0 size (amphenol or equivalent) at one end going to the battery and the other end going to the inverter. The inverter end of the wire is not amphenol connector

What cable to use for paralleling the batteries?

Parallel kit (sold separately) can connect multiple batteries in parallel. Both ends of these cables are weather rated connectors (amphenol or equivalent)

Can I install the battery above the ground?

Yes, the battery can be installed above the ground. Ensure proper mounting procedures listed in the manual.

Do I need X-bracket for all my battery installations?

You only need X-bracket for reference when installing EP-18kPV along with the battery.

Do I need conduit box for every battery installation?

You only need conduit box for the 18kPV installation. However, it’s a highly recommended accessory for each battery to ensure all the conduits are hidden for professional look.

How many PowerPro WallMounts do I need for my 18kPV?

Up to 3 can be used with a single 18kPV.

How do I upgrade the firmware?

You’ll need to use a RS485 to USB cable along with the BMS Tools software. Firmware from EG4’s website can be installed using this program

How can I access the BMS on my computer?

BMS Tools provides access to the BMS information. You’ll need to use an RS485 to USB cable.

Product Documents:

EG4 48V 280Ah WallMount All Weather Lithium Battery User Manual

download
Download Now >

EG4 48V 280Ah WallMount All Weather Lithium Battery Specification Sheet

download
Download Now >
OTP graphic
OTP graphic