Product Summary:

The wall-mountable, all-weather 48V EG4 All Weather has arrived and is here to revolutionize power storage for every home in America. This 28.68kWh configuration is the ideal solution for off-grid power in your tiny home, cabin, or homestead, supported by comprehensive safety, reliability, and state-of-the-art features.   The All Weather System was designed to be a durable, high-capacity off-grid power solution, with a single unit design, easy expandability down the road, and all hardware included to secure the system to your wall with a simple installation. The All Weather comes equipped with an IP65-rated, all-weather casing, as well as an advanced BMS with auto cell-balancing, and a responsive self-heating function to ensure long-lasting safety and reliability even in the harshest of conditions. Plus, the All Weather features an interactive LED display on the side of the unit, along with full CANBus and RS485 communication protocols, so you can always monitor the status and performance of your power. This battery even boasts an internal fire extinguishing unit for ultimate peace of mind when installed inside or outside your home. Supported by these robust safety and visibility features, this power system is engineered to withstand up to 8,000 cycles at 80% depth of discharge (DoD), achieving lifespans of up to 10+ years.   But that’s not all. We pair these All Weather with the cutting-edge 12000XP split-phase, off-grid inverter from EG4, with a rated power of 12000W, and equipped with its own LCD touch screen display, 2 MPPT inputs, an integrated UPS module for seamless on and off-grid switching, and the ability to handle PV arrays of up to 24000W. Plus, through its smart load control, AC coupling abilities, and peak shaving function, you can meet your power needs and protect your home against unstable grids or rolling blackouts, while seeing huge savings each month on your electric bill. But if you already have an inverter at home, don’t worry. The All Weather is compatible with dozens of 48V inverters on the market today.   Whether you’re looking to outfit your home with an uninterrupted power system or you’re simply looking to ensure emergency backup power is always available, EG4’s All Weather ensures reliable, efficient power delivery day in and day out, allowing you to save on utilities, and most importantly, stay powered and prepared. Take control of your power and shop the all-new 48V All Weather Systems today.

Whether indoors or outdoors, our All-Weather battery is built to last. Paired with the 12000XP inverter, the complete ESS system is engineered for safe, optimal indoor performance.

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Battery Downloads

SKU#:K0149, K0766, K0767, K0165, K0166, K0167, K0168
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
UL9540A Certificate:DownloadDOWNLOAD
UL1973 Certificate:DownloadDOWNLOAD
Quick Start Guide:DownloadDOWNLOAD
CEC Listing- EG4 WallMount All Weather:Go to linkGO TO LINK

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)

Inverter Downloads

SKU:K0149, K0766, K0767, K0165, K0166, K0167, K0168
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
UL1741 Certificate:DownloadDOWNLOAD
UL9540 Certificate:DownloadDOWNLOAD
WiFi Configuration Guide:DownloadDOWNLOAD
CEC Listing – EG4 12000XP:Go to linkGO TO LINK

Inverter Specifications

Nominal AC Voltage:120/240VAC | 120/208VAC (L1/L2/N required)
Frequency (Grid | Generator):60 Hz (Default) | 50 Hz (Configurable)
Max Continuous AC Current (Grid | Generator):100A @ 240VAC | 62.5A @ 240VAC
Max AC Input Power:24000W
AC Bypass (Grid | Generator):100A | 90A
Recommended Generator Capacity:6000W – 15000W
Output Voltage:120/240VAC | 208VAC
Output Frequency:60 Hz (Default) | 50 Hz (Configurable)
Max Continuous Output Current:50A @ 240VAC | 57.7A @ 208VAC
Nominal Output Power (without PV):12000W @ 240V | 12000W @ 208V
Nominal Output Power (with PV):12000W @ 240V | 12000W @ 208V
Max Continuous Wattage:12000W (L1/L2) | 6000W (L1-N/L2-N)
Surge Capacity:18000W (5 sec) | 15000W (10 sec)
Power Factor:0.99
Total Harmonic Distortion:<3%
Switching Time:<10 ms (Single) | <20 ms (Parallel)
No. of MPPTs (Inputs per MPPT):2 (2)
Max Input Current:35A / 35A
Max Short Circuit Input Current:44A / 44A
DC Input Voltage Range:100 – 480VDC
Min Start Up Voltage:100VDC
MPPT Operating Voltage Range:120 – 385VDC
Nominal MPPT Voltage:320VDC
Max Utilized PV Power:24000W (12000W per MPPT)
Max Recommended PV Input:28000W (14000W per MPPT)
Efficiency:99% (MPPT) | 93.5% (PV to Loads) | 92.8% (PV to Battery) | 92.5% (AC to Battery) | 90.2% (Battery to Loads)
Idle Consumption (Standby Mode):<70W
Nominal Voltage:48VDC
Battery Voltage Range:46.4 – 60VDC
Max Charge / Discharge Current:250A
Max Charge / Discharge Power:12000W
DC Cut-Off Voltage:59VDC
Recommended Battery Capacity per Inverter:>400Ah
Max Parallel Connections:6
Protection Rating:IP20
Communication Interface:RS485 / CANBus / WiFi
Operating Temperature (Full Load):32ºF – 113ºF (0ºC – 45ºC)
Storage Temperature:5ºF – 140ºF (-15ºC – 60ºC)
Altitude:<6,561 ft (2000 m)
Relative Humidity:5 – 95% (Non-Condensing)
Typical Noise Emission:<60 dB
Cooling Method:Fan
Weight:104.7 lbs (47.5 kg)
Depth:5.9 in (150 mm)
Width:20.9 in (530 mm)
Height:34.25 in (870 mm)

EG4 All Weather Battery: 10-Year EG4 Manufacturer Warranty

EG4 12000xp Inverter: 5-Year EG4 Manufacturer Warranty

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