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BigBattery 48V EG4 WALLMOUNT 280Ah All Weather Battery
BigBattery 48V EG4 WALLMOUNT 280Ah All Weather Battery
Regular price
$3,499.00 USD
Regular price
Sale price
$3,499.00 USD
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BigBattery 48V EG4 WALLMOUNT 280Ah All Weather
Product Summary:
The EG4 280Ah All-Weather LiFePO₄ Battery is a high-performance, rugged energy storage solution designed for reliable operation in extreme environments. Delivering 14.3kWh of storage with a 200A continuous discharge, this battery is ideal for residential, off-grid, and backup power systems requiring durability and long-term performance.
Built with advanced LiFePO₄ chemistry, the EG4 All-Weather battery offers 8,000+ cycles at 80% depth of discharge, providing exceptional lifespan and value. Engineered for resilience, it features integrated self-heating, EMP protection, dual fire arrestors, and an emergency stop (E-Stop) for enhanced safety and cold-weather reliability.
With weather-resistant construction, quick-connect terminals, and an integrated LCD for real-time BMS monitoring, this battery ensures easy installation and dependable performance in both indoor and outdoor applications.
Ships From: Texas, USA
Warranty: 10 Years
Support: Lifetime USA-Based Tech Support
Compatibility
UL 9540 Certified + Closed-Loop Communication (Grid-Tied):
EG4 12kPV
EG4 18kPV
EG4 FlexBoss18
EG4 FlexBoss21
Closed-Loop Communication (Off Grid Non-UL 9540 Installs):
All BigBattery APEX Inverters
All EG4 Inverters
Key Features
- 14.3kWh LiFePO₄ Battery – High-capacity, safe lithium storage
- 200A Continuous Output – Supports high-demand residential loads
- 8,000+ Cycle Life – Long-lasting performance at 80% DoD
- Integrated Self-Heating – Reliable operation in cold climates
- Advanced BMS Protection – Protection against voltage, current, and temperature risks
- EMP Protection & Fire Safety – Dual fire arrestors and emergency shutdown (E-Stop)
- Weather-Resistant Design – Built for indoor and outdoor installations
- Quick-Connect Terminals – Simplified installation and system expansion
- LCD Monitoring Display – Real-time battery performance and diagnostics
- Maintenance-Free Operation – No routine servicing required
A durable, high-capacity battery solution built for extreme conditions, long-term reliability, and dependable energy storage wherever you need it.
Items Included
48V EG4 All Weather 280Ah Wallmount Battery - 1
Mounting Bracket - 1
X Bracket - 1
Expansion Bolt - 6
Red & Black Battery to Inverter Power Cables (3.3 FT) - 1
Battery to Inverter Comm Cable (5 FT) - 1
Mounting Bracket - 1
X Bracket - 1
Expansion Bolt - 6
Red & Black Battery to Inverter Power Cables (3.3 FT) - 1
Battery to Inverter Comm Cable (5 FT) - 1
Downloads & Specifications
Battery Specifications
Nominal Voltage:51.2V
Chemistry:Lithium Iron Phosphate (LiFePO4)
kWh Capacity:14.3kWh
Ah Capacity:280Ah
BMS Charging Voltage (Bulk/Absorb):56.0V (±0.8V)
Rec. Charging Voltage (Bulk/Absorb):56.2V (±0.2V)
Rec. Float Setting:54V (±0.2V)
Rec. SoC Cutoff Setting:20%
Max. Continuous Charge Current:140A
Max. Continuous Discharge Current:140A (200A Max. Continuous for 30 min)
Rec. Charge Current:60 – 140A
Rec. Discharge Current:60 – 140A
Max Continuous Discharge Rate:10,240W
Voltage:56V
Power Consumption:224W
Internal Temperature Cutoffs:≤32ºF (On) | ≥41ºF (Off)
Charging Temperature Range:32ºF – 122ºF (0ºC – 50ºC)
Discharging Temperature Range:-4ºF – 131ºF (-20ºC – 55ºC)
Storage Temperature Range:32ºF – 113ºF (0ºC – 45ºC)
Operating Altitude:<16,404 ft (<5,000 m)
Protection Rating:IP65
Communications:RS485 | CANBus
Weight:308.6 lbs (140 kg)
Depth:9.1 in (232 mm)
Width:22.3 in (566 mm)
Height:36.1 in (916 mm)
