INTRODUCING SMART5

Roamer's 5th generation of lithium batteries.

Higher quality, more power and safer than ever

12 Year Warranty

That’s how much we believe in our product. Over a decade of powered adventures.

Unlimited Tech Support

Our UK based team are here to help. Reach out to us any time - by phone, email or live chat

Triple Certified For Safety

Tested, certified and industry verified. Now with ECE R-10 for type approved vehicles.

Five Generations. One Relentless Goal.

SMART5 is the result of years of refinement - each generation tested, improved, and battle-hardened through real-world feedback. From better thermal management to additional third party integrations, every evolution brings you a battery that is stronger, safer, and more intelligent.

> Premium LiFePO4 cells up to 20 years life

> Ultra reliable 300A BMS for high power

> New models - 144SMART5 and 340SMART5

> Plug and Play with Victron, Garmin and more

> Fully certified with R10 type approval

Smarter by Design

Drop-In Lithium Power

SMART5 provides genuine drop-in compatibility. No need to replace your entire electrical system or lead-acid chargers.

EASY UPGRADES

Roamer Intelligence

Link your battery with third party inverters and monitoring systems, with the widest range of integrations yet.

INTEGRATIONS

Ultimate Reliability

Engineered by Roamer for ultimate reliability. In house testing and quality controls ensure every battery works perfectly out of the box.

BUILT TO LAST

Europe's Trusted Number ONE

Over the last 6 years Roamer have established themselves as Europe's leading experts in lithium leisure batteries and off-grid electrics. Don't just take our word for it - Roamer are trusted by tens of thousands of professionals and end users.

Unrivalled build quality and reliability is demonstrated by an industry leading warranty return rate of less than 0.1% in the last 12 months.

Every battery purchase also includes Roamercare. Our unique battery support package includes a free setup consultation call and ongoing technical support via phone, email and live chat.

5/5 average rating

Happy adventurers

powered by Roamer

Thomas Pearce

Roamer leads the pack with their product, and when you couple that with their customer service, it amazes me that people buy elsewhere. Honestly, forget Renogy, Fogstar or anyone else (I've used them both before, but never again). If you value domestic experts with can-do, positive attitudes who genuinely want to help you, then look no further, you've found the holy grail of van electrical companies.

Ian Locke

Nice when you come across a company who really cares about what they're doing! I've been in touch with them for various bits of advice regarding choice and installation of my Roamer battery, and without fail, everyone has been really friendly and helpful, willing to spend the time regardless of how seemingly trivial the question is.

Rebecca Freear

Having had an A1 buying experience with the guys at Roamer batteries, we were confident to ask for help when needed. Steve spent ages on the phone, patiently going through settings on the charge controller and advising re apps and appliance energy usage. Chris called twice later to make sure we had got the information we needed. If only all companies were as caring and thorough as Roamer Batteries, they are a top class small British business!

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's SMART BMS app displayed on two iPhones side by side

Roamer in the wild

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