Would you like consistent battery performance, reliable operations and to avoid breakdowns? Read our tips below on how to preserve the quality of your motorhome leisure battery.
What is a Motorhome Leisure Battery?
Your leisure battery is the heart of your motorhome. It brings warmth, light and entertainment – turning your vehicle into a home on wheels. It’s the energy source which allows your electrical appliances to run smoothly while travelling around the UK and beyond. And surprisingly, it’s not found in the engine.
Unlike a car battery, which simply starts your vehicle and relies on the alternator to stay charged, a leisure battery delivers a steady 12V power supply to your appliances. It also stabilises power and shields your devices from surges when plugged into the mains.
You may also want a generator or inverter for your 240V sockets to allow bigger appliances like your TV, kettle or toaster to function smoothly.
Most motorhomes don’t include a leisure battery with purchase. If you need help installing your battery or deciding which battery is best for your vehicle, speak to a member of our technical team.
Why Battery Maintenance is Important
The Victron Battery range is designed for off-grid use and supplies reliable power for around 6 years – plenty of time to roam the UK’s hidden gems and chase the sun across mainland Europe. But like tyres and brake pads, batteries wear over time. Checking your battery should be a key part of your vehicle checks to keep your journey smooth and stress-free.
Safety and security devices also need access to power when your motorhome isn’t on to prevent theft or accidents, so it’s necessary to ensure your battery is regularly charged and in good condition to protect your motorised home.
Completely draining the battery power of your leisure battery can kill it. So, keeping an eye on the condition of the power source is critical.
5 Tips to Maintain Your Battery
These are our remote energy solutions team's best tips to maintaining your motorhome leisure battery.
1. Winter Wobbles and Storage Care
If you aren’t planning to use your motorhome for a while, you need to decide whether to leave the battery where it is or remove it. Before deciding, you should consider any security alarms linked to your vehicle which may require a consistent power source.
The battery, if removed, should be placed in an area with good ventilation in a dry, warm and safe place. A garage or shed will suit but keep the battery clear from petrol cans and naked flames.
Victron batteries are sealed and maintenance-free, so you don’t need to worry about topping up fluid levels. You can monitor battery levels with Victron’s battery monitor and the VictronConnect app to find real-time data, as well as historical data.
During the Winter
The colder the temperature, the harder the battery has to work. Its performance will drop, and you might have to charge it more often. If it gets too cold it may simply just stop working, which can be an expensive problem.
If you’re unable to attach a charger permanently, you can bring it home to charge once a month or on a timer for a few hours a day. And if you have solar panels, be aware that the weaker sunlight in winter may not effectively charge your battery.
2. Keep It Clean
Keeping your battery area clean is as important as wiping your feet before entering your home. At least once every year, clean the battery tray, terminals and connectors. Dust and dirt can obstruct the current flow, which affects your battery's longevity and operations.
Check your battery’s manufacturer guide on how to clean the terminal connections to keep the battery in optimal condition. Don’t forget to wear eye protection and gloves to avoid any harm through accidental spills or splashes.
While you clean, check all connections and look for any signs of corrosion. If sulphation has occurred – a white substance on the battery’s plates – it’s considered to have reached the end of its working life and is ready for disposal.
3. Charge It Properly and Regularly
For your battery to reach its recommended working life, a healthy charge level is necessary. If it’s left for weeks – or months during winter – without being checked and charged, you’ll likely need to buy a new one.
A battery needs a charger with an output of at least 10% of its capacity, so use a charger designed for your battery. Choose a charger that can reduce voltage to storage mode during periods of inactivity. Never allow the battery to run flat or leave it uncharged – always maintain a 50% charge level and only discharge your battery below 80% in emergencies.
4. Don’t Overconsume
It’s easy to use multiple appliances and devices all at once like we do in our on-grid static homes. But it’s not a habit you should get into in your motorhome. The quicker you drain your battery and the more often you charge it, the quicker its performance will decrease.
Turn off everything when it’s not being used – including your fridge. The latter should be set on a medium-low setting, as it has one of the largest pulls of power from the leisure battery.
5. Periodical Checks and Awareness
Regular battery checks ensure your motorhome is always ready for the road. You’ll never have to experience a flat battery again if you understand how your power system works.
Involve everyone who travels with you in these checks. The more aware each person is of how the power is used, the easier it will be to notice issues early and avoid power failures. Habitual checks don’t just protect the battery – they keep your entire electrical system running smoothly.
Set a schedule to check the charge level, clean the terminals and test the battery’s performance every few months – both in storage and if your motorhome is in use. This will help you save time, money and frustration on your adventures.
Journey with confidence and browse our collection of leisure batteries today.
