48V 105Ah LiFePO4
The Roamer is our professional 48V LiFePO4 battery - designed for high power users whether that’s in a house, boat or van. This is our most powerful battery yet, giving you total freedom to live and work off grid without compromise.

£1,620 £1,800

In Stock

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Capacity 105Ah at 51.2V
Up to 16 in parallel
Up to 5.4kW continuous discharge
Up to 3kW continuous charge
Compatible with range of inverters
Plug and play with Victron GX
Remote online monitoring
Bluetooth, CANbus and WiFi

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.


Built to last

The Roamer HOME is built around sixteen Grade A+ 105Ah LiFePO4 cells with exceptional power density and 100% usable capacity allowing for a full cycle capacity of 5.4kWh, expandable up to 86kWh. We included our high power 48V BMS that supports up to 10kW discharge and includes a wide range of safeguards including low temperature charging and surge protection.

We’ve used the highest quality components and packed them into a compact, serviceable case that can be rack or floor mounted for flexible installation.

Live Smarter

The Roamer HOME comes with integrated CANBus and RS485 ports offering a range of communication options. The BMS is configured for plug and play integration with a wide range of third party inverters and system monitoring, including Victron GX products.

DIY power but make it Roamer

Premium Build Quality

Traceable grade A cells from EVE
Up to 2x the power output of competitors Precision engineered structure


Real time monitoring
CANbus comms

Victron GX integration

Easy Integration

Compatible with all inverters
Rack or floor mount
DIY install possible

Support & Expertise

UK supported installation
10 year warranty

The Power of 48-105HOME



iPhone charges from start to finish



Laptop charges from start to finish






Days of fridge power



Lord of the Rings viewings on TV



Minutes of hair drying



Hours of air conditioning



Pizzas in the airfryer 

5/5 average rating

“Fantastic service from start to finish and the post sale backup is second to none.”

Rob Landsman

My partner and I have had the pleasure of buying a battery from Roamer. Being new to the campervanning world we sometimes need all the help we can get, and the people at Roamer offer help and advice by the bucket load. Today we received help from the amazing Steve and then had a follow up call from Chris, two of the nicest people you could ever wish to speak to. We can't recommend Roamer highly enough. Their products are very well made and after sales service is second to none.

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!

Joseph Parker

First and foremost Roamer batteries “do what they say on the tin”. Having purchased batteries before that did not live up to their amp hour claims, this is a brand you can trust. Setting up an off grid system at home to avoid energy price increases was made a good deal easier by all the help and advice. You can always buy cheaper but I am not sure you will ever get better value for money when it comes to buying top quality batteries.

Graeme Kerr

The team at Roamer are fantastic. Seriously, if you are in the market for this type of product I wouldn't recommend another company. After placing our order, Steve and Chris have been nothing short of brilliant in supporting us on delivery updates, schematic design & support, video calls, install advice... the lot. We are relative novices in this area and ask a lot of questions but the team is always there, exactly what you need from this type of purchase.

Indra Åkerblom

We are extremely pleased with the help we got from Steve and the crew at roamer batteries. We needed to upgrade our battery bank and they helped us out. Such a good price for what you get, extraordinary customer service and they really went above and beyond with helping us sort shipping and installing the battery. Would highly recommend it!

Rowan Robinson

Been thinking about going lithium in the van and came across these guys who have some pretty sick branding. Spoke to Chris who answered all my questions and said they could design me a full system to suit my needs along with a battery! The fact that they took their time talking things through with me was the clincher, the customer service was great! Friendly and knowledgeable, I can definitely recommend these guys.

Felix Van Spall

Roamer supplied the electrical design for our self build camper which saved us weeks of research and newbie mistakes, I highly recommend to anyone taking on a self build. Roamer also supplied all the electrical equipment (price matched) with telephone support fo the install - great when you have those little recommendations and questions you're not sure about. Big Fan

Compare models


Change model
Capacity (Ah)
Nominal Voltage (V)
Continuous Discharge
Continuous Power
Charge Temperature
0 to 55C
Dimensions (mm)
385L x 435W x 230H
45 kg
Total Price


Change model
Capacity (Ah)
Nominal Voltage (V)
Continuous Discharge
Continuous Power
Charge Temperature
0 to 60C
Dimensions (mm)
521L x 268W x 218H
38 kg
Total price
The Ultimate Off Grid Home Battery


Select your Roamer model to compare
For full time living
For high power winter users
For arctic explorers
For full time living
For high power users
For extended tours
For compact seatbase installs
For extreme expeditions
For off grid adventurers
For occasional off-grid campers
Roamer to Victron GX CANbus cable

Safety First.

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.