A common questions we get from customers is:
“How long can I use my motorhome without being plugged into mains electric?”
The honest answer is: it depends on how you use your motorhome, the weather, and the time of year. Let’s look at what affects your battery life and what you can realistically expect when staying off-grid.
Your leisure battery typically powers:
It’s important to remember that while your gas may provide the heat for your heating and hot water, many systems still require electricity to run fans, controls and ignition systems.
During the summer months, leisure batteries tend to last much longer because:
A standard 100Ah leisure battery may last around 2–3 days before needing a recharge.
If your motorhome has solar panels, you may be able to stay off-grid for significantly longer during sunny weather.
Winter places much higher demands on your battery because:
In colder months, the same battery that lasts 2–3 days in summer may only last:
1–2 days before requiring charging.
If you’re using heating regularly and spending most evenings inside the motorhome, battery consumption can increase dramatically.
A couple touring Scotland in June:
2–4 days without hook-up
A family of four:
Expected battery life:
1–2 days without hook-up
Using heating overnight, lights, television and charging devices:
Expected battery life:
Around 24 hours before charging is recommended
Solar Panels
Solar panels can make a huge difference, particularly from spring through autumn.
On a sunny summer day, a solar panel may replace much of the power you’ve used, helping you stay off-grid for longer.
Driving Between Locations
Every time you drive, your vehicle’s charging system tops up the leisure battery.
Many touring customers rarely experience battery issues because they move locations regularly.
Switching lights off when not needed
Our motorhome control panels show battery voltage or charge level.
As a general guide:
12.7V = Fully charged
12.4V = Around 75%
12.2V = Around 50%
Below 12V = Recharge recommended
Allowing a battery to become completely flat can shorten its lifespan.
For most customers:
Summer: Expect 2–4 days off-grid from a healthy leisure battery.
Spring/Autumn: Around 1–3 days depending on usage.
Winter: Often 1–2 days, particularly if heating is being used.
If you’re planning longer off-grid adventures, solar panels, regular driving and sensible power usage can dramatically extend the time you can stay away from electric hook-up.
