How to choose the right lithium battery for your setup
Lithium batteries are a popular choice for campervans, motorhomes and solar-powered systems thanks to their efficiency, lighter weight and consistent power output.
When choosing a lithium battery, consider:
- How often you travel and how long you stay off-grid
- Whether you use solar panels, mains charging or both
- The total power draw of your appliances, such as fridges, lighting and device charging
For regular touring or solar use, lithium batteries are well suited to modern 12V leisure systems when paired with compatible charging equipment.
What battery capacity do I need for a campervan or motorhome?
Battery capacity is usually measured in amp hours (Ah). The right size depends on how much power you use each day and how often you can recharge.
As a general guide:
- Smaller capacities are suitable for short trips or lighter power needs
- Larger capacities are better for longer stays, solar setups or higher-demand appliances
If you rely on solar charging or spend multiple days off-grid, choosing a higher capacity battery can help provide more flexibility and reduce the need for frequent recharging.
Lithium vs lead-acid leisure batteries
Both lithium and traditional lead-acid batteries are used in leisure applications, but they offer different benefits.
Lithium batteries are typically:
-Lighter and easier to install
-Able to deliver more usable power
-Better suited to regular charging and discharging
-More efficient when used with compatible MPPT solar controllers
Lead-acid batteries can still be suitable for occasional use, but many campers and tourers choose lithium for improved performance and long-term value in modern setups.
Charging and compatibility considerations
Whichever battery you choose, itβs important to use charging equipment designed to support it. Solar charge controllers, mains chargers and DC-DC chargers should be compatible with lithium charging profiles where applicable.
Matching your battery with suitable controllers and cabling helps ensure safe operation and reliable everyday performance.