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Off-grid 4.0

The “Off-grid 4.0.48 ”solar system is capable of running a load up to 5000 Wh per day with a battery bank capacity of 2 days of autonomy. That’s how long you can run your loads without sunlight.

To maximize the output wattage of the solar panels, each system was designed to face south or equivalent.

The solar array’s power generation capacity is dependent how much shading and the angle of the rays as they hit the solar panels. Peak power occurs when the rays are at the right angles to the panels, our recommendation is to use a 45 degrees angle if on ground or equivalent on roof. We used an average year round daily peak sun hours of 3 hrs without no shade.

The efficiency of batteries depends on the temperature at which they are stored. We recommend that lithium-ion batteries and sealed lead-acid batteries (AGM and gel cells) to be stored in a controlled temperature room with a minimum temperature of 0 degrees Celsius at worse.

Most batteries are rated at 77°F (25°C), which means their specifications are based on how the battery’s cells perform at 25°C. As a rule of thumb, batteries lose about 10% of their rated capacity, as measured by the cells, for every 15-20 degrees below 80°F. For a larger battery bank, we recommend building an insulated shelter with small controlled fans (small heater for winter) to increase life of the batteries.

Each system is designed for 2 days of autonomy (DoA), which is how long you can run your loads without the sun.

Each panel requires at least of 24ft2 of space.

Key features

  • High solar cell efficiency : Monocrystalline 20.1%
  • Bypass diodes minimize power drop caused by shade and ensure excellent performance in low-light environments.
  • The included MPPT charge controller has a peak efficiency of 97%.
  • Electroluminescence (EL) tested solar modules; Anti pid technology (apt) hot-spot protect (hsp) traceable quality (tra.Qtm) anti lid technology (alt)
  • Corrosion-resistant aluminum frame for extended outdoor use; allowing the panels to last for decades
  • Sealed; Gel and Flooded charging algorithm ready
  • 4-Stage battery charging process for a rapid; efficient; and safe battery charging
  • Each package is designed with high end quality materials.
  • Each component that is used comes with documentation
    to guide you through.
  • The Off grid 2.0, 3.0 and the 4.0 system are expendable.

Usage, power and battery specification


The “Off-grid 4.0.48 ”solar system is capable of running a load up to 5000 Wh per day with a battery bank capacity of 2 days of autonomy. That’s how long you can run your loads without sunlight.


The “Off Grid 4.0.48” system has 2550W DC,powered by a 48V-420Ah battery bank system that will gives you the freedom to run more loads than the “Off Grid 3.0” system. This system is able to run off grid appliances and some higher demanding appliance like coffee machine, kettle and a submersible pump, small AC fridge, small washing machine, (see table 1 for loads examples).This system is ideal for cabins, tiny homes, RVs, trailers, boats, sheds and treehouse.


The batteries are essential for an off-grid system. We recommend keeping these batteries between -10 °C to 20 °C to maximize their life and efficiency.

The following or equivalent are loads that the system can run
LED Lights
10 10 7 7 700
Phone charger
3 7 4 7 84
Ceiling Fan
1 60 2 7 120
Laptop Charger
1 65 3 7 195
40" LED TV
1 80 2 6 160
AC Fridge
1 350 7 7 2450
Submersible Pump
1 400 2 7 800
Coffee Machine / Kettle
1 1000 0.2 7 200
1 100 2 5 200

Technical Details

*** Items subject to change


QTY Description
2 Breakers
1 SmartSolar MPPT 250/100
1 Victron Multiplus 48/3000VA
8 B6-400B 6V, 420AHr
1 BMV 702 Battery Shunt
1 Cables and Materials
1 100A,125A Breaker & DC disconnect
1 20m 10/2 tec


Racking options

Product price
Additional options total:
Grand total

***Installation not included.
***Optional upgrade to lithium.
***Tax not included
***See our racking options for adds on