Hey David.
Following up on your recent articles on best ways to improve the electrical system in a caravan. We were after some advice on things we need to keep in mind. We have a New Age Manta Ray caravan that is around 6 years old and will be looking to upgrade shortly – probably this year. What should we be thinking of? Love your column.
Thanks
Mike and Judy, Grey Nomads, (currently Port Hedland, WA)
Thanks Grey Nomads!
No doubt you are enjoying your travels and have seen some amazing parts of Australia along the way. Assuming that you have been traveling for some time you most likely will have given some good consideration as to what you think you’ll need in your next van. Probably also seen some of the cool gear that other travelers have in their setup also. The modern caravan owner has far greater energy needs than ever before. With the increasing popularity of lithium batteries, advanced inverters, and smart monitoring systems, the days of simple 12V setups are behind us.
Firstly, you will need to consider your current and future energy needs. Start by evaluating what appliances and devices you currently use in your caravan and consider their location. Essentials like lighting, a refrigerator, and water pumps are standard, but modern setups often include air conditioning units, TVs, coffee machines, and other high-demand appliances. Many owners also want to power laptops, drones, and other tech equipment. Consider where you may charge these devices from in and around your van. For example, do you think you may need more solar (or at least want the flexibility? Then request the wiring to be added for this upfront so that it can run through the walls and roof etc without costly structural work later when retrofitting.
Next, consider your power storage. Create a solution that will enable you to either add batteries or invest in a larger battery bank later. Consider things such as wire size and fuses upfront. No use setting up a 100Ahr lead system when you want to increase this later. Ask for thicker cables and fusing to handle heavier charging and discharging. Skimping on wiring and connectors can lead to performance issues and even safety hazards. Even the storage should be considered. Many vans now store the batteries externally – consider add an additional battery basket that can be used later.
Prioritize smart monitoring and management. A smart power management system is no longer a luxury—it’s a necessity for anyone serious about future-proofing their 12V setup. These systems allow you to monitor battery levels, solar input, and power consumption in real time, often via a smartphone app. Brands like BMPRO, popular in Australia, offer comprehensive power management systems designed specifically for caravans and RVs. With remote monitoring and easy integration, these systems help you identify inefficiencies and optimize energy use, ensuring your system runs at peak performance.
Plan for future integration. As technology evolves, new devices and features will become available. When designing your system, think about compatibility with future add-ons. For example, some modern BMS and inverters are designed to integrate with additional features like temperature sensors, automatic generators, and advanced load-shedding systems. Opt for products with flexible firmware updates and robust ecosystems to stay ahead of the curve. Consider your connectivity to the internet for these firmware updates. You should also give thought to increasing the size of your shunt on the battery at the initial stages to ensure you can monitor the batteries effectively.
And lastly, consider safety and redundancy. Safety is paramount in any electrical system. Incorporate multiple safety features such as circuit breakers, fuses, and thermal protection to prevent overloading or short circuits. Additionally, consider adding redundancy to your setup, such as dual charging sources (solar and alternator) to ensure power availability in all scenarios.
Safe travels
12V Guru