Explore ROAMER Batteries



Easy 14 day returns
Not entirely satisfied? Send it back within 14 days for a money-back guarantee.
10 year warranty
That’s how much we believe in our product. A decade of powered adventures.
Ongoing support
We’re all about community. Reach out to us any time - we’re here to help.
YOUR JOURNEY IS OUR JOURNEY
Roamercare is now FREE
Over the last 6 years Roamer have established themselves as the world's leading experts in lithium leisure batteries and off-grid electrics. That's why we've introduced ROAMERCARE, our premium battery support plan thats designed to help you install, maintain and ultimately enjoy the power that you get when you buy the best high power lithium LiFePO4 battery on the market.
Every Roamer battery purchase now includes:
- 30 minute set up consultation to help with install
- Electrical system design for new Victron systems
- Unlimited tech support for ongoing queries
- UK based phone and email assistance
- 10 year warranty to cover all eventualities
At Roamer, you're not just a customer, you're part of a community. We're here to support you, answer your questions, and provide the resources you need to explore with confidence.
SMART INTEGRATIONS
Intelligence on display
New SMART4 communication features allow for seamless plug-and-play CANbus integration with Victron, Simarine and other touch-screen display systems. You can now monitor and control your system from your campervan, motorhome or boat using the Roamer SMART Bluetooth app or connected touch screen.
Victron GX integration takes this even further, with the ability to receive notifications and view your battery data in real time from anywhere in the world, via the Victron VRM portal.
HIGH POWER DROP-IN REPLACEMENT
Upgrades made simple
If you're looking to upgrade an existing campervan, motorhome or boat then you need something that is going to slot in seamlessly and work with your existing chargers.
Roamer SMART4 batteries include several new and exclusive features that makes the process of upgrading from lead acid to lithium easier than ever before. You can now adventure further and for longer, without having to replace your entire electrical system.
FREE ELECTRICAL CONSULTATION
When you buy any large battery (worth £120)

More than just a pretty battery
Roamer have designed and supplied over 1600 complete systems for campervans, boats and tiny houses. If you are looking to upgrade your electrical system, simply add the free consultation during the checkout process.
Installing yourself? No problem. Roamer provides ongoing install support by phone, live chat and email. We can even program your chargers remotely.
Need a little more help? We also offer nationwide installation services whether thats upgrading your battery or installing a complete off-grid electrical system.


5/5 average rating
Happy adventurers
powered by Roamer
The only recharging you’ll be doing is in Nature
Whether you’re a weekend camper, an extreme explorer or living full-time in your van, our 4th generation SMART Series has the perfect battery for every kind of adventurer. Choose a model aligned with your needs and enjoy uninterrupted power for uninterrupted adventure.
Less wondering
More wandering
Know your power with the all-new Roamer SMART App - the ultimate wingman for uninterrupted adventure. It’s easy to use, connects via Bluetooth, allows and lets you track and monitor the status of your battery from the comfort of your van, boat, or home. Real-time feedback at your fingertips.

Roamer in the wild
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