EG4 12000XP Complete Off-Grid Solar Kit | 7kW Solar | 20.4kWh Server Rack Batteries
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Visit CalculatorThe EG4 12000XP Complete Off-Grid Solar Kit is a high-performance, scalable energy solution designed for full-time off-grid living, large backup systems, and energy independence. Built around the powerful EG4 12000XP inverter, this system delivers robust 120/240V split-phase power with advanced solar input capacity and seamless battery integration.
Paired with a 7kW solar array and flexible 20.4kWh server rack battery options, this kit provides reliable daily energy production and substantial storage capacity. Designed for efficiency, expandability, and ease of installation, it’s an ideal solution for homeowners looking to eliminate reliance on the grid or ensure uninterrupted power in critical situations.



Everything you need is included with your product.
Inverter:
Battery Options (Choose One):
Solar Panels:
Accessories:
Accessory Based on Battery Choice:
AC input data
| Specification | Details |
| Nominal AC voltage (grid | generator) | 120/240VAC; 120/208VAC (L1/L2/N required) |
| Frequency (grid | generator) | 60 Hz (Default) | 50 Hz (Configurable) |
| Grid max. continuous AC current | 100A @ 240VAC |
| Max. AC input power | 24000W |
| Generator max. continuous current | 62.5A @ 240VAC |
| Recommended generator capacity | 6000W – 15000W |
| AC bypass (grid | generator) | 100A | 90A |
| Available fault current | 5kA |
| Input short circuit current | 150A peak @100us, per inverter |
AC output data
| Specification | Details |
| Output voltage | 120/240VAC; 208VAC |
| Output frequency | 60 Hz (Default) | 50 Hz (Configurable) |
| Max. continuous output current* | 62.5A @ 240VAC | 62.5A @ 208V |
| Nominal power output* | w/ PV: 15000W @ 240V | 13000W @ 208V | w/out PV: 12000W @ 240V | 12000W @ 208V |
| Max. continuous wattage | 15000W (L1-L2) | 7500W (L1-N or L2-N) |
| Peak power (surge capacity)** | 15360W for ≈10s |
| Power factor value | .99 |
| THD (V) | <3% |
| Switching time | <10 ms @ Single | <20 ms @ Parallel |
PV input data
| Specification | Details |
| Number of MPPTs | 2 |
| Inputs per MPPT | 2/2 |
| Max. usable input current | 35A/35A |
| Max. short circuit input current | 44A/44A |
| DC input voltage range*** | 100 – 480 VDC |
| Min. startup voltage | 100 VDC |
| MPPT operating voltage range | 120 – 385 VDC |
| Nominal MPPT voltage | 320 VDC |
| Max. PV input voltage*** | 500 VDC |
| Max. utilized solar power | 24000W (12000 per MPPT) |
| Max. recommended solar input | 28000W (14000 per MPPT) |
| Specification | Details |
| Product Model | SG48100P |
| Battery Type | Lithium iron phosphate battery |
| Rated capacity | 100Ah |
| Nominal voltage | 51.2V |
| Recommended charging voltage | 54.5V |
| Charging Limited Voltage | 57.6V |
| SOC working range | 0~100% |
| Standard discharge current | 50A |
| Maximum continuous discharge current | 100A |
| Standard charging current | 50A |
| Maximumcontinuous-charge current | 100A |
| Maximum cut-off voltage for charging. | 57.6V |
| Charge cutoff.current | 5A |
| Disharge cut-off voltage | 43.2V |
| PACK.cycle life | ≥7000 |
| Thermal management method | Natural heat dissipation |
| IP protection class | IP31 battery box |
| Flammability rating | plastic parts UL94 V-0 |
| Total system mass | Around 93lb |
| Battery system shell materia | BLACK Q235A |
| Shipping SOC | SOC45-55% |
| Dimension (LxWxH mm) | 19.3x18.9x5.5inch |
| Design life | 15 Year |
| Parallel function | Supports up to 32 batteries in parallel |
| Anti-theft function | sensor G-sensor anti-theft function |
| Display function | English smart display |
| Charging current limit function | Current limit 20A |
| Communication mode | RS232/RS485/CAN |
| Communication protocol | Support multiple protocols |
| Storage ambient temperature | 14°F~113°F |
| Working temperature | Battery charging:32°F~113°F, Battery discharging:-4°F~140°F |
| Relative humidity of working environment | ≤95 |
Module Operating Parameters
| Specification | Details |
| Voltage | 51.2V |
| Capacity | 100AH |
| Charging Voltage (Bulk/Absorb) | 56.8V | 56.2V (+/-0.2V) |
| Float | 54V (+/-0.2V) |
| Low DC Cutoff | 44.8V | 47-45.6V (start high, lower as needed) |
| Charging Current | 100A (Max. continuous) | 30-50A |
| Discharging Current | 100A (Max. continuous) | 90A |
Environmental Parameters
| Specification | Details |
| Charging Range | 32° ‒ 113°F (0°C to 45°C) |
| Discharging Range | -4°F ‒ 122°F (-20°C to 50°C) |
| Storage Range | -4°F ‒ 122°F (-20°C to 50°C) |
| Ingress Protection | IP20 |
Charging/ Discharging Parameters (Charge)
| Specification | Details |
| Cell Voltage Protection | 3.8V | 1 sec | 3.45V |
| Module Voltage Protection | 60.0V | 1 sec | 55.2V |
| Over Charging Current 1 | >102A | 20 sec |
| Over Charging Current 2 | >120A | 3 sec |
| Temperature Protection | <23°F or >158°F <-5°C or >70°C | 1 sec | >32°F or <140°F >0°C or 60°C |
Charging/ Discharging Parameters (Discharge)
| Specification | Details |
| Cell Voltage Protection | 2.3V | 1 sec | 3.1V |
| Module Voltage Protection | 44.8V | 1 sec | 48V |
| Over-Charging Current 1 | >102A | 30 sec | 60 sec |
| Over-Charging Current 2 | >150A | 3 sec | 60 sec |
| Short Circuit | >300A | <0.1 mS |
| Temperature Protection | <-4°F or >167°F <-20°C or >75°C | 1 sec | >14°F or <149°F >-10°C or <65°C |
| PCB Temp Protection | >221°F (>105°C) | 1 sec | @ <176°F (<80°C) |
General Specifications
| Specification | Details |
| Cell Balance | 120mA | Passive Balance | Cell Voltage Difference >40mV |
| Temperature Accuracy | 3% | Cycle Measurement | Measuring Range: 40°F ‒ 212°F (-4°C ‒ 100°C) |
| Voltage Accuracy | 3% | Cycle Measurement | Measurement Range: +/-200A |
| SOC | 5% | Integral Calculation |
| Power Consumption | Sleep & Off Mode | <300uA | Storage/Transport/ Standby |
| Power Consumption | Operating Mode | <25mA | Charging/Discharging |
| Communication Ports | RS485/CAN | Customizable |
| Maximum Modules in Series | 1 |
| Maximum Modules in Parallel | 64 |
| Dimensions (H×W×D) | 6.1in×19in×17.4in (15.5cm×48.2cm×44.2cm) |
| Weight | 99.6 lbs. (45.2 kg) |
| Module | ETL Listed to UL Standard 9540A:2019 |
| Cell | UL:1973 |
| Specification | Details |
| Battery Type | LFP Battery |
| Nominal Voltage | 51.2V |
| Nominal Capacity | 100Ah |
| Minimum Capacity | 99.5Ah |
| Nominal Energy | 5120Wh |
| Charging Voltage | 56V |
| Discharging Cutoff Voltage | 44.8V |
| Standard Charging Current | 20A |
| Maximum Charging Current | 100A |
| Standard Discharge Current | 50A |
| Continuous Discharge Current | 100A |
| Maximum Discharge Current | 100A |
| Shell Material | Sheet metal casing |
| Weight | 99.20lb |
| Initial AC(1000Hz)Internal Resistance | ≤50mΩ |
| Monthly Self-Discharge Rate | ≤5% |
| Overall Dimensions | 17.7x17.8x5.2in |
| Cycle Life(Times)(25℃±2℃) | ≥7000; Capacity Retention≥70% |
| Specification | Details |
| Rated voltage | 51.2V |
| Max. voltage range | 56.0V |
| Charge voltage | 4 Person |
| Float charge voltage | 54.6V |
| Low voltage cut-off | 44.8V |
| Nominal energy | 5.12KWh |
| Usable energy | 4.92kWh |
| Nominal capacity | 100Ah |
| Dimension | 482*133.5*460mm (18.9*5.2*18.1 inch) |
| Weight | ~46kg (101lb) |
| Standard charge current | ≤50A |
| Max. charge current | 70A |
| Standard discharge current | ≤50A |
| Max. discharge current | 100A (initial temp. ≤35℃) |
| Peak discharge current | 101~119A@5mins | 120~200A@5S |
| Communication | RS485 /CAN |
| Max parallel number | 32pcs |
| Operation temperature 1 | Charge: 0~50℃ | Discharge:-20~50℃ |
| Storage temperature (0℃ |
<6 months |
| Storage temperature (-10℃ |
<3 months |
| Storage temperature (Recommended environment) | 15~35℃, 5~75%RH |
Electrical Performance
| Specification | Details |
| Nominal Voltage | 51.2 V |
| Nominal Capacity | 100 Ah |
| Energy | 5120 Wh |
| Self-Discharge | < 3% / Month |
| Cells | 3.2 V 100 Ah |
Charge Performance
| Specification | Details |
| Recommended Charge Current | 50 A |
| Maximum Charge Current | 100 A |
| Recommended Charge Voltage | ≤ 58.4 V |
| Maximum Batteries in Series | 48 |
Discharge Performance
| Specification | Details |
| Maximum Continuous Discharge Current | 100 A |
| Peak Discharge Current | 120 A / min |
| Recommended Low Voltage Disconnect | 44.8 V |
Temperature Performance
| Specification | Details |
| Discharge Temperature | –4 ~ 140 °F (–20 ~ 60 °C) |
| Charge Temperature | –4 ~ 122 °F (–20 ~ 50 °C) |
| Storage Temperature | 23 ~ 95 °F (–5 ~ 35 °C) |
| BMS High-Temperature Cut-Off | Discharge 167 °F (75 °C) / Charge 158 °F (70 °C) |
| Reconnect Temperature | Discharge 149 °F (65 °C) / Charge 140 °F (60 °C) |
Mechanical Performance
| Specification | Details |
| Dimensions (L × W × H) | 19.14 × 16.95 × 5.22 in |
| Approx. Weight | 100 lb |
| Terminal Type | M8 |
| Terminal Torque | 80 ~ 100 in-lbs |
| Case Material | SPCC + SGCC |
| Enclosure Protection | IP20 |
Inverter Supported
| CAN | RS485 |
| Victron / SMA / SOFAR / Studer Innotec | Voltronic / RCT / MPP / Alphaoutback |
| PYLON / Sol-Ark / Solis / Goodwe / Deye / Growatt / SAJ / Megarevo / INVT / Sermatec / TBB / MUST / Sunsynk | SRNE / RYLON / Growatt |
| Schneider | 4 Person |
| LUXPOWER | Yes |
What can this system power?
This system can power most or all of a typical home, including refrigerators, lighting, well pumps, HVAC (with load management), and large appliances.
What is the difference between open-loop and closed-loop batteries?
Closed-loop batteries (like EG4) communicate directly with the inverter for optimized performance and monitoring, while open-loop batteries operate independently but still function reliably.
Can I expand this system later?
Yes, both solar input and battery storage can be expanded to meet increasing energy demands.
Is this system suitable for full-time off-grid living?
Yes, this kit is specifically designed for full-time off-grid applications with sufficient solar and storage capacity.
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I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!
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I am always hesitant to buy things at places I have never shopped... I want to give a shout out to Manny who with great patience and knowledge helped me get my orders... I felt valued as a customer and I will definitely be back in the future. I highly recommend them, they make you feel like family.
Jennene A.
I'm about to go off grid. I called Manny, he walked me through everything so I could truly understand what I needed and never tried to upsell me. He was honest and made a customer for life.
Ray B.
I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!
Roger V.
I have been talking with Manny the owner... He has not only helped me design a system but he's been assisting with the install and components. I am super pleased so far with the assistance.
Jeff S.
We added 2 more batteries to our current set up. Pleased with the customer service from Off-Grid Source! Will be back!
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Very fast response times. Very professional. I highly recommend!
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