Skip to product information

EG4 WallMount Indoor Battery 48V 314Ah 16kWh UL9540A Self-Heating

EG4 WallMount Indoor Battery 48V 314Ah 16kWh UL9540A Self-Heating

SKU: FEWMT-48161-G1

Regular price
Price: $3,700.00
Regular price
List Price: $4,352.95
Sale price
Price: $3,700.00
You Save: $652.95 (15%)
PowerGenStore support team

Found a lower price?

We'll match any verified competitor price — just share the listing with us before you buy.

Low stock

View Cart
  • Free Shipping on Orders >$5K
  • Easy 30 Day Returns

Why Buy From PowerGen Store

Authorized Dealer

100% genuine products with manufacturer warranty.

Free Fast Shipping

On most orders across the U.S.

Expert Support

Real people ready to help you choose. Based in USA

Secure Checkout

Safe encrypted payments you can trust.

Easy Returns

Simple returns on eligible orders.

Trusted Nationwide

Customers rely on PowerGen for dependable solutions.

Price Guarantee

At PowerGen Store, we are committed to offering you the best prices online. If you find a lower price at another online store within two months of your purchase, just let us know.


Click Here to review full Price Guarantee Policy

Manufactures Warranty

PowerGen Store is an Authorized Dealer for all of our Suppliers, so every product you purchase includes the Full Manufactures Warranty provided directly by the Manufacturer. See Manufactures Website for More Details

Return Policy

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. 

Click Here to review our full Returns Policy

Shipping Policy

At PowerGen Store, we are dedicated to ensuring our customers enjoy a smooth and efficient shipping experience. As a special benefit for our valued customers, we are pleased to offer FREE SHIPPING in the Contiguous 48 United States (See below for Alaska & Hawaii). To guarantee timely delivery of your orders, we have built a comprehensive network of couriers. Please see the detailed information below regarding our shipping Policy.

Click Here to read out full Shipping Policy

Description

Smart power. Simple reliability. Whether you want lower energy costs or more control during outages, the EG4 WallMount 314Ah Indoor Battery delivers dependable whole-home backup in a compact design. With 16.1 kWh of storage capacity and 200A continuous output, it provides consistent performance for your home or small business — all while fitting seamlessly into your indoor setup.

Key Features:

  • Cross-Compatible with Other EG4 Models: Seamlessly integrates with existing
    EG4 battery systems for flexible scaling and expanded storage capacity. (Note: UL9540 Certified only with Flexboss 18 & Flexboss 21)
  • Hybrid Wall or Floor Mount Design: Flexible installation options with a durable,
    space-saving enclosure (IP20 rated).
  • High-Capacity Storage: 16kWh nominal energy and 314Ah capacity for
    reliable, high-output performance.
  • Auto-ID Technology: Automatically recognizes and syncs new batteries during
    installation, simplifying system setup and configuration.

Specifications
Specification Details
Product Type Low Voltage LFP Battery
Battery Type Lithium Iron Phosphate (LFP)
Model Number WM-48-314-IN-XX (XX is a number between 00–99)
Nominal Energy Capacity 16 kWh
Usable Energy (DOD%) 12.86 kWh (80% recommended)
Voltage Range 47.5 – 57.6 VDC
Nominal Voltage 51.2 VDC
Capacity 314 Ah
Charging Voltage Range 56 – 57 VDC
Discharging Cut-off Voltage 47.5 VDC
Max Continuous Charge Current 157 A
Max Continuous Discharge Current 200 A
Continuous Charge / Discharge Power 8 / 10.2 kW
Recommended Charging / Discharging Rate 0.5C
Peak Power 12.8 kW (3 sec)
Round-trip Efficiency 95%
Max Parallel Units 16
Protection Features Over/Under Voltage, Over-Current, Short Circuit, High/Low Temperature
Battery Management System (BMS) Integrated with Active Balancing
Communication Protocols RS485, CAN
Battery Breaker 250 A
Storage Temperature Range** -4 – 131°F (-20 – 55°C)
Humidity Range 5% – 95% RH (non-condensing)
Altitude 9843 ft (<3000 m)
Cooling Method Natural Convection
Dimensions (H × W × D) 34.1 × 18.1 × 9.6 in (865 × 460 × 245 mm)
Operating Temperature Range Charge: 32 – 122°F (0 – 50°C); Discharge: -4 – 131°F (-20 – 55°C)
Weight 293.2 lbs (133 kg)
Enclosure Rating IP20
Mounting Options Wall or Floor Mount
Display / Indicators LED Status
Connector Type Degson Quick Connector / Screw Terminal
UL 1973 Yes
UL 9540 DC ESS, AC ESS with EG4 18kPV, 12kPV, FlexBOSS 21, FlexBOSS 18
UL 9540A Battery-to-Battery spacing of 6 in
UN 38.3 Yes
FCC Part 15 (EMC) Yes
Protection Class Class B
Cycle Life (70% EOL Capacity) 10,000 cycles @ 0.5C, 25°C, 80% DOD
Design Life* 10 years
Warranty 10 years or 10,000 cycles
Application Type Residential / Commercial / Off-grid / Backup
Lifetime Energy Throughput (Calculated) 115.7 MWh
Recommended DOD Setting Note* Set no lower than 20% to maintain recommended 80% depth of discharge
Storage Temperature Note** For storage longer than 3 months: 59 – 86°F (15 – 30°C)
Note Specifications subject to change without notice

Questions & Answers

Have a Question?

Be the first to ask a question about this.

Ask a Question

Recently Viewed Products