Powering a motorhome independent of the grid
In the world of motorhoming, having a reliable and efficient power system is essential for a comfortable and successful trip. Here are some tips to help you optimise your motorhome's power setup.
Firstly, when adding an extra leisure battery, it's crucial to fuse any additional batteries close to the battery terminals. This ensures a safe and efficient power flow.
Power stations and power banks are versatile units that combine battery, charger, inverter, and various mains and USB outlets. They are a handy addition to your motorhome, especially for adding a mains inverter without draining down the main battery bank.
Solar panels are a useful addition to a motorhome, but their output can vary significantly depending on the weather conditions. A 150W solar panel might only produce 0.1A in winter, while in sunny conditions, a 400W solar panel can produce 24A.
When using mains-powered devices without being plugged into an electric hook-up, an inverter is needed. Power stations and power banks are useful for such situations, providing a portable power source.
Almost every appliance and anything with an electrical switch runs on 12V battery power in a motorhome. A microwave, for instance, doesn't consume 800W, but its input power consumption is typically double that. It's worth noting that a 2500W fan heater will consume more than 200A from a battery, enough to flatten a 200Ah battery in under an hour.
Gas heating systems in motorhomes require electricity to ignite the flame and power the blown-air fan. A new type of super-efficient blown-air heater, the Ablemail AHC12 electric heater, runs directly off 12V and offers a rapid warm-up time.
Energy-efficient gadgets and appliances should be sought out to reduce energy consumption. The new range of super-efficient flush induction hobs by Portal Zero is an example of such energy-efficient devices becoming available for motorhomes.
When setting off on tour, it's important to avoid as many common touring errors as possible to ensure a successful trip. This includes choosing the right power station based on your usage and the weight and bulkiness of the unit.
Lithium batteries are a great option for motorhomes due to their lightweight nature and high energy density. They offer a much greater depth of discharge compared to lead acid batteries. The manufacturer recommended by the website team for the best lithium-powered battery for a motorcaravan is Lithionics, as featured in the Winnebago Power MAX System used in the Winnebago Travato 59KL.
A battery-to-battery (B2B) charger, such as the EcoFlow Alternator Charger, can shove 40-80A into a leisure battery while driving, recharging it in a couple of hours. When wiring solar panels to batteries, a suitable regulator and a fused supply should be used.
It pays to shop around for energy-efficient gadgets and devices, as well as upgrading your battery and charging systems. It's also well worth checking which new products have come onto the market at leisure vehicle shows.
Some energy is lost in the conversion from 12V DC battery power to 230V AC power. It's important to consider this when planning your power setup. High-power devices can consume enormous current when running on an inverter, so it's essential to choose the right inverter for your needs.
In summary, by upgrading your motorhome's power system with energy-efficient appliances, lithium batteries, and a B2B charger, you can enjoy a greener and more convenient journey. Remember to consider the size of your solar panel, the weight and bulkiness of your power station, and the energy consumption of your appliances when making your choices. Happy touring!
