The Roamer 100XTREME enables high-powered appliances and creature comforts in the most remote off-grid locations, whether that’s taking a campervan on a ski trip to Alps, trekking in the Sahara Desert or an expedition to the South Pole. Premium, low temperature LiFePO4 cells provide consistent high power in any environment or temperature - making light work of even the most extreme adventures.
FREE Roamercare with every battery – includes 15 minute kick off call to support installation.
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.
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Every cloud has a silver lining
The 100XTREME uses our exclusive low temperature cylindrical LiFePO4 cells with the widest usable temperature range of any LiFePO4 battery on the market. And because this powerhouse can be charged down to minus 30 and discharged down to minus 40, there’s absolutely no need for cell heaters.
This battery provides an exceptional amount of power for its size - delivering a continuous charge/discharge rate of 200A. That’s twice the power of most of our competitors and enough to run an inverter up to 2600W. The state-of-the-art cells also ensure stable voltage throughout the charge and discharge curve with a long lifespan of up to 3500 cycles, at 80% depth of discharge.
Come rain or shine Never stop exploring
Our XTREME batteries are expertly designed to withstand the coldest temperatures and harshest environments. Traditional LiFePO4 batteries cannot be charged below zero but the Roamer XTREME uses exclusive low temperature cells which can be fast charged without needing a heater. Whatever the weather, you can count on Roamer to keep every moment fully charged with adventure.
Discover more about our XTREME Batteries.
Your adventure starts with your setup. And with Roamer, it’s quick and easy. Simply choose your battery location, attach the cables, configure your chargers, and download our Roamer BMS app for real-time monitoring. Uninterrupted power = uninterrupted adventure.
We understand the prospect can be quite overwhelming so if you'd like some support, we offer an off grid electrical system design service. You will spend time with one of our experts who will give you all the tools and advice you need to install your own electrical system, even if you've got no idea where to start. From choosing chargers to cable sizing and configuring settings, we've got you covered.
The power of the Roamer 100XTREME
5/5 average rating
“Fantastic service from start to finish and the post sale backup is second to none.”
Here at Roamer, we take safety extremely seriously and strive to make the safest LiFePO4 batteries possible. It is no secret that Lithium can be dangerous and whilst LiFePo4 is without doubt, the safest option, it is still not without risk. And that’s why we go above and beyond on both compulsory and voluntary extensive safety tests and processes. We choose to test every single battery before it leaves the factory by cycling to 100% and 0% and applying a high charge and discharge load to identify potentially faulty cells and connections, test BMS performance and verify cell balance at the top and bottom of the voltage-charge cycle. Our SMART3 batteries use only traceable branded cells from reputable manufacturers with lab test reports to verify battery safety as part of the EN 61619 certification. Finally, our product and fulfilment services also meet the courier requirements to ship Dangerous Goods under the UN3480 certification. Find out more about the steps we have taken to ensure maximum safety here.
Know your power with the all-new Roamer BMS App - the ultimate wingman for uninterrupted adventure. It’s easy to use, connects via Bluetooth, 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.