EG4 WallMount Indoor Battery 48V 314Ah | 16kWh UL9540A Self-Heating
Power your home or backup system with the EG4 WallMount Indoor Battery, a high-capacity 48V energy storage module designed for residential, off-grid, and hybrid applications. Featuring self-heating for reliable cold-weather performance and UL9540A safety certification, it supports clean indoor installations with a compact wall- or floor-mount enclosure and scalable integration with other EG4 models.
Performance & Specifications
- Nominal energy: 16 kWh; usable energy (DOD 80% recommended): 12.86 kWh
- Nominal voltage: 51.2 V; voltage range: 47.5–57.6 VDC; capacity: 314 Ah
- Max continuous charge/discharge: 157 A / 200 A
- Continuous power: 8 kW (charging) / 10.2 kW (discharging); peak power: 12.8 kW (3 s)
- Round-trip efficiency: 95%
- Operating/Storage temperatures: charge 0–50°C; discharge -20–55°C; storage -20–55°C
- Dimensions and weight: 34.1 × 18.1 × 9.6 in; 133 kg; enclosure IP20; cooling by natural convection
- Max parallel units: 16; BMS integrated with active balancing; protection: over/under voltage, over-current, short circuit, high/low temperature
Safety, Certifications & Compatibility
UL 1973 certified and UL 9540/UL 9540A listed, enabling DC and AC ESS configurations with compatible EG4 systems. Cross-compatibility: seamlessly integrates with existing EG4 models; UL9540 certification applies specifically with Flexboss 18 & Flexboss 21. Battery-to-battery spacing is 6 in. UN 38.3 compliant.
Installation & Maintenance
Designed for clean indoor installation, the unit offers flexible wall or floor mounting with the supplied mounting bracket. Auto-ID technology automatically recognizes and syncs new batteries during installation, simplifying system setup. For extended storage, keep within the recommended storage temperature range of 59–86°F (15–30°C) if stored for more than three months. Maintain clearance for ventilation and inspect connections and enclosure integrity during routine service.
Included
- 1 x EG4 WallMount 314Ah Indoor Battery
- 1 x Mounting Bracket (attached to back)
- Red and Black Degson power cables (2 sets each) 2/0 AWG (39.4 in.)
- 2 x M10 Lifting Eye Bolt
- 6 x Expansion Bolt M8×70
- 1 x Battery to Inverter Communication Cable (59.1 in.)
- 1 x 120Ω Terminating Resistor
- 1 x Wi-Fi/Bluetooth Antenna
- 1 x X-Bracket
- User Manual
| Category | Details |
|---|---|
| Product Type | Low Voltage LFP Battery |
| Battery Type | Lithium Iron Phosphate (LFP) |
| Model Number | WM-48-314-IN-XX (XX = 00–99) |
| Nominal Energy Capacity | 16kWh |
| Usable Energy (DOD%) | 12.86kWh (80% recommended) |
| Voltage Range | 47.5 – 57.6 VDC |
| Nominal Voltage | 51.2 VDC |
| Capacity | 314Ah |
| Charging Voltage Range | 56 – 57 VDC |
| Discharging Cut-off Voltage | 47.5 VDC |
| Max Continuous Charge Current | 157A |
| Max Continuous Discharge Current | 200A |
| Continuous Charge/Discharge Power | 8 kW / 10.2 kW |
| Recommended Charge/Discharge Rate | 0.5C |
| Peak Power | 12.8kW (3 sec) |
| Round-trip Efficiency | 95% |
| Max Parallel Units | 16 |
| Protection Features | Over/Under Voltage, Over-Current, Short Circuit, High/Low Temp |
| BMS | Integrated, Active Balancing |
| Communication Protocols | RS485, CAN |
| Battery Breaker | 250A |
| Storage Temp 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 | Charge: 32 – 122°F (0 – 50°C) • Discharge: -4 – 131°F (-20 – 55°C) |
| Recommended DOD Setting Note | Do not set below 20% to maintain 80% DOD |
| Storage Temp Note | >3 months storage: recommended 59 – 86°F (15 – 30°C) |
| Weight | 293.2 lbs (133 kg) |
| Enclosure Rating | IP20 |
| Mounting Options | Wall / 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: 6 in |
| UN 38.3 | Yes |
| FCC Part 15 (EMC) | Yes |
| Protection Class | Class B |
| Cycle Life (70% EOL) | 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 | 115.7 MWh |