EG4 Electronics WallMount 314Ah Outdoor AllWeather Battery, 16kWh Lithium Battery for Residential and Commercial Systems, UL 1973 and UL 9540

Overview

Sealed to IP67, this EG4 WallMount 314Ah AllWeather battery stores 16kWh nominal and works indoors or outdoors. It suits off-grid cabins, homes, and commercial installations.

Planning a system? Read our guide: How to size a battery backup system for your home.

Key benefits

• At 80% DOD it provides 12.86kWh of usable energy per cycle, and it lasts more than 10,000 cycles before reaching 70% capacity.
• An integrated heater switches on at 32°F and off at 37°F to keep cells in a safe charging range.
• Auto-ID detects the inverter and sets the communication protocol automatically in three to five seconds.
• Up to 32 batteries combine for 514kWh.

Key features

• 16 UL-recognized 3.2V LiFePO4 cells in series, 51.2Vdc nominal
• Discharge range -4°F to 131°F; charging range 32°F to 122°F
• 157A continuous charge and 200A continuous discharge current
• 250A battery breaker
• Natural convection cooling

Ideal use

For garages, sheds, basements, utility closets, and outdoor sites in most climates, installed where flooding is unlikely.

What is included

• Communication cables
• 120Ω terminating resistors

Key specifications

Model / SKU

EG448V314AODWMB

Brand

EG4

Category

Batteries

Voltage

2V

Energy capacity

16 kWh

Rated power

448 W

From the manufacturer

The EG4 WallMount 314Ah AllWeather LiFePO4 Battery The WallMount 314Ah AllWeather Battery delivers 16kWh of nominal energy storage in a wall-mounted, IP67-rated enclosure that works indoors and outdoors. Each unit contains 16 UL-recognized 3.2V LiFePO4 cells wired in series, producing a nominal voltage of 51.2Vdc. At the recommended 80% DOD (Depth of Discharge), you’ll get 12.86kWh of usable energy per cycle, and the battery can last more than 10,000 cycles before reaching 70% of its original capacity. This makes it ideal for use in your off-grid cabin, residential home, or commercial installation. The EG4 AllWeather Battery Excels in Rain or Snow The IP67 ingress protection rating means this enclosure is sealed against dust and can withstand temporary water submersion. This rating protects the internal cells and electronics when installed in garages, sheds, basements, utility closets, and the outdoors. While the EG4 314Ah outdoor battery can withstand brief submersion, it’s important to install it in a location unlikely to flood. The operating discharge temperature spans from -4°F to 131°F, and the charging range spans from 32°F to 122°F. When temperatures fall to 32°F or below, the integrated 448W heater activates to keep cells within a safe charging range. The heater automatically shuts off at 37°F. For hot climates, natural convection cooling keeps the unit within operating parameters up to 131°F during discharge. These features make this 16kWh LiFePO4 battery ideal for outdoor installation in most climates and regions. Power Multiple Home Loads While Starting Large Motors The BMS manages a maximum continuous charge current of 157A and a maximum continuous discharge current of 200A, which translates to 8kW of continuous charge power and 10kW of continuous discharge power. For pumps, compressors, and other items with high-inrush current, the EG4 AllWeather battery can provide up to 12.8kW for up to three seconds. A 250A battery breaker protects against damage from dangerously high currents. Add Batteries for Commercial Renewable Energy Systems For systems needing additional energy, you can combine up to 32 EG4 314Ah AllWeather batteries for a total storage capacity of 514kWh. This is enough to power large-scale residences or small commercial systems. Auto-ID Enables Plug-and-Play Setup The WallMount 314Ah AllWeather Battery uses Auto-ID technology, so you don’t have to manually configure battery addresses and protocols. When the primary battery powers on, the BMS detects the connected inverter and automatically selects the correct communication protocol: EG4, Victron, or another compatible brand. It then assigns itself as battery ID 1, and each additional battery receives a unique ID in sequence. Installers connect batteries using the included communication cables between Comm 1 and Comm 2 ports, close the loop with the included 120Ω terminating resistors, and power on each unit in order. The Auto-ID process completes in three to five seconds per battery. The BMS Protects the Battery and Extends Cycle Life The integrated BMS monitors each of the 16 cells individually and provides protection against overvoltage, undervoltage, overcurrent, short circuit, and high/low temperature conditions. Should the BMS notice a cell or PCB outside of safe operating temperature, it automatically shuts down the battery. Active cell balancing operates at 2-3A, which means it can equalize the cells more quickly than passive methods. It also keeps cell voltages within a tight range of each other, which directly extends cycle life and maintains consistent capacity across the full battery bank. Installation and Mounting Since this 48V wall mount battery is so heavy, it’s important to attach it to the wall while resting the feet on the ground. Combine the battery with the EG4 conduit box to hide the wires going from the battery to the inverter. The conduit box rests directly on top of the battery, and you can install an EG4 inverter, like the 18kP

Warranty terms mentioned in this description are the manufacturer’s. Our own coverage is the 30-day limited warranty.

Before you order

We confirm compatibility, installation requirements, and delivery details with you during order review, before any payment. Home electrical work may require a qualified installer.

Contact our team with questions about outdoor placement for this AllWeather battery. Message our team on WhatsApp.