Running a fridge, lights and campsite essentials shouldn’t become a daily power puzzle. A 12v lithium battery gives your caravan, 4WD or boat reliable off-grid energy without the bulk of traditional lead-acid options. Explore capacities and formats to find the right fit for your setup.

Choosing the Right Capacity: 100Ah, 200Ah and 300Ah
Looking for a 12v lithium battery for your caravan, 4WD or boat? LiFePO4 batteries offer reliable power in a lighter, longer-lasting package than traditional lead-acid batteries. From compact 100Ah options to high-capacity 200Ah and 300Ah batteries, choosing the right size comes down to your available space, appliances and how long you want to stay off-grid.
100Ah and 104Ah Batteries for Smaller Setups
A 12v 100ah battery is a practical choice for lighter power needs, including smaller caravans, camper trailers and touring 4WDs. It can support essentials such as a 12V fridge, lighting, water pumps and device charging without taking up unnecessary space.

200Ah Batteries for Bigger Rigs and Longer Trips
Need more time between charges? A lithium battery 12v 200ah gives you more capacity for larger fridges, inverters and multiple appliances. It’s well suited to caravans, boats and off-grid camping setups with higher daily power demands.
300Ah and 48V Batteries for Heavy-Duty Off-Grid Systems
For larger electrical systems, 300Ah and 48V batteries provide the capacity needed for demanding off-grid setups. They’re a strong option when you’re running more equipment or need reliable stored energy for longer trips away from mains power.
Built for Caravans, 4WDs and Boats
A good lithium battery for camping, touring or boating needs to fit your setup as well as your power requirements. Consider the battery dimensions, capacity and features alongside your existing charging and electrical system.
Standard and Slimline Formats
Standard batteries suit conventional battery boxes and compartments. A slimline lithium battery is designed for tighter spaces, making it useful behind seats or in compact storage areas where every centimetre counts.
Bluetooth Monitoring and Self-Heating
Selected batteries include Bluetooth monitoring, letting you check important battery information from a compatible device. Self-heating models can also help support charging in very cold conditions. Compare features across the range, including Renogy lithium battery options, to find the right fit for your setup.
Why Go Lithium (LiFePO4) Over Lead-Acid
Lighter and More Usable Capacity
Compared with a traditional 12v deep cycle battery using lead-acid chemistry, LiFePO4 batteries are typically lighter and allow more of their rated capacity to be used. That means more usable energy without carrying as much weight.
Longer Lifespan, Less Maintenance
LiFePO4 batteries are designed for repeated charging and discharging, making them a practical option for regular touring and off-grid use. They also require little ongoing maintenance compared with many lead-acid batteries.
FAQs
People often ask us these questions when talking about 12v lithium batteries.
How long does a 12V lithium battery last?
LiFePO4 batteries can provide thousands of charge cycles, depending on use, charging and operating conditions.
How long will a 100Ah lithium battery run a 12V fridge?
Often several days, but runtime depends on the fridge’s power consumption, conditions and other loads.
What is the best 12V lithium battery in Australia?
The right battery depends on your required capacity, available space, electrical system and desired features.
What are the disadvantages of using a 12 volt lithium battery?
Higher upfront cost and the need for compatible charging equipment are the main considerations.