Category: Useful tools

  • 12v to 48v AGM or Lithium Battery Charging Time Speed Calculator

    AGM or Lithium Battery Charging Time Speed Calculator Guide Understanding how long it takes to charge a battery is essential when designing or using any off grid, solar, or backup power system. Whether you’re running a 12V, a 24V or 48V lithium, or AGM leisure battery bank, knowing your battery’s charging time helps you decide…

  • Ohm’s Law Voltage Current Resistance Triangle Circuit Calculator

    Ohm’s Law: The Voltage Current and Resistance Relationship In Circuits Understanding the relationship between voltage, current, and resistance is essential when working with electrical and electronic circuits. Whether you’re designing a solar power system, troubleshooting a caravan electrical issue, or learning basic electronics, Ohm’s Law is the foundation. This guide explains Ohm’s Law in simple…

  • Solar 12v to 48v Battery Life Runtime Consumption Calculator

    Battery Life Calculator If you’re running a solar powered system, whether it’s for a caravan, campervan, RV, or an off grid cabin, knowing how long your batteries will last under load is critical. Overestimating or underestimating your battery life can leave you stranded without power or result in overspending on unnecessary battery capacity. This is…

  • Off Grid Solar Leisure Battery Bank Capacity Size Calculator

    The most critical decision when planning an off grid solar system for your camper van, boat, or small cabin is choosing the right battery bank size. Your daily energy use is the primary factor to consider when sizing your battery, another important factor is the chosen charging method. To put that into perspective if your daily energy use is significantly…

  • How Much Solar Do I Need, PV Panel Size Calculator UK

    How Much Solar Do I Need? PV Panel Size Calculator (UK) If you’re trying to work out what size off grid solar panels you need for your campervan, motorhome, shed, boat, tiny home, or off grid setup, this guide will help you calculate it quickly. Sunlight in the UK varies a lot between seasons, so…

  • DC Amp Fuse Size Selection Calculator

    DC Amp Fuse Size Selection Calculator (2025 Guide) Correct fuse sizing is essential for the safe operation of any DC energy system, regardless of the application whether its your camper van or your shed. Choosing the wrong fuse can cause wires to overheat, or may result in damage to your equipment. In this guide, you’ll…

  • Solar 12V to 48V DC Battery Cable Size Calculator

    12V to 48V DC Battery Cable Size Calculator Tool Sizing your solar cables correctly is crucial for safety, performance, and efficiency. This guide will help you calculate the ideal DC cable size for your 12V, 24V, or 48V solar battery system, whether it’s for your campervan, off grid setup, or home solar installation. Disclaimer: This calculator is for…

  • How much does a shed off grid solar panel system cost?

    Are you wondering how much a complete prewired off grid solar system will cost? We’ve developed this in house cost estimator to help you get a fast, reliable estimate tailored to your energy needs. What Is a Prewired Solar System? A prewired solar system is a ready to use solution that includes all the essential…

  • Caravan Power Usage Calculator

    Our Power Usage Calculator When designing an off grid energy system the first step is to know your energy needs! We created this caravan power usage calculator tool in house to help you size your leisure battery and plan your system. You can also use it for other applications like boats or sheds. We invite…

  • 12v to 48v cable voltage drop calculator in a DC circuit

    The Voltage Drop Calculator Voltage drop is the reduction in voltage that occurs as electricity flows through a cable, caused by the cable’s resistance. The longer and thinner the cable, and the higher the current, the greater the voltage drop meaning less usable voltage reaches your appliance or equipment. In this article we explain the…