Caravan 12V Lithium
Power System Upgrade

Lighter, Longer-Lasting Power for Off-Grid Adventures

Start Your Custom Off-Grid System Today

Got a 4WD, caravan or camp set-up? Let’s build your power system! Simple steps, custom design, total support.

Light Weight

Weighing significantly less than lead-acid batteries, the overall weight of your caravan is reduced. This can improve fuel efficiency and make towing easier.

Fast Charging

Lithium batteries charge much faster than lead-acid batteries, reducing downtime and ensuring your caravan is ready to go sooner.​

Longer Life-Span

Can last 10+ years or provide 2,000–5,000 charge cycles, far surpassing the lifespan of lead-acid batteries. This makes them a cost-effective long-term investment.

Space Saving

Smaller and lighter for the same capacity, allowing them to fit into tighter spaces and free up room for other essentials, especially in compact setups.

Not Sure What You Need?
Let’s Find Your Perfect
Power Solution

We know upgrades can feel
overwhelming. Our experts will:

1

Audit Your Setup

Assess your current power usage and goals.

2

Explain Your Options

No jargon, just honest advice.

3

Match You with the Right System

Budget-friendly to expedition-ready.

When Do You Need a Lithium Upgrade?

You’re...

Ideal For...

Signs You Need It:

Who is BMC Off Grid

Your trusted Sunshine Coast lithium battery specialists.
BMC Off Grid team in front of workshop with motorhome

Your Lithium Power Experts

We’re REDARC-certified specialists with 10+ years in off-grid electrical systems. Every install includes:

Why Choose Us

REDARC RedNetwork
Certified

Trusted by Australia’s top
brands.

No Hidden
Costs

Free upfront quotes.

Adventure-
Ready

We test our systems in real
off-grid conditions.

Real-World Results

A customer recently came to us with a second-hand motorhome equipped with a basic AGM battery and a single solar panel. Wanting the freedom to go fully off-grid and power appliances like an air conditioner and air fryer without relying on 240V mains power, we delivered a complete upgrade.

This included a RedArc 50A Battery Management System, a powerful RedArc 3000W Inverter, three additional 180W solar panels, and two Invicta 200AH Lithium Batteries. Now, with this advanced system, our customer can travel anywhere with confidence, enjoying the comforts of home while staying completely off the grid.

Motorhome with completed 12V lithium power installation

Our recent work

Two Invicta deep cycle batteries strapped in place
Invicta Black deep cycle batteries with terminal leads
Motorhome upgraded with 12V lithium power system
Caravan roof with multiple solar panels and air conditioner
Redarc RedVision battery monitor display in caravan
Redarc inverter mounted in caravan cabinet
Lithium battery installed in caravan compartment
Lithium battery with fused wiring installed under caravan bed

More of our recent work

Redarc and 40A DC-DC chargers installed with red cabling
Redarc DC-DC chargers wall-mounted with fuse block

Caravan Upgrade: RedArc BCDC Alpha50

A recent customer reached out to upgrade the outdated charging system in their caravan. Having already upgraded the solar and battery setup themselves, they wanted a solution that would enhance their system without the need for a full electrical overhaul. After assessing their needs, we recommended the RedArc BCDC Alpha50 – a perfect fit for the job. This state-of-the-art charger not only integrates seamlessly with their existing system but also provides on-the-fly Bluetooth monitoring and backcharging capability to the vehicle, ensuring maximum efficiency and convenience. The result? A more reliable, efficient power system without the complexity of a complete rebuild.
Customer beside caravan during 12V power upgrade
Caravan battery compartment with Redarc charger and wiring
Technician working under a caravan on electrical system

New product! - see our video

Redarc BCDC Alpha DC-DC battery charger

Redarc BCDC Alpha 25A or 50A DC Battery Charger

Contact us for price

We highly recommend the Redarc BCDC Alpha 25A or 50A DC Battery Charger – its efficient multi-stage charging ensures optimal battery performance, while solar input support enhances off-grid capability.

Compact and durable, it’s perfect for maintaining lithium batteries during travel, ensuring reliable power wherever your adventures take you.

book a consultation