At Secure Storage, we provide secure outdoor storage for caravans, motorhomes and campervans.
While many people think security begins and ends with fencing, gates and CCTV, true protection also involves understanding modern safety risks, including the growing use of lithium-ion batteries in leisure vehicles.
Across the UK, lithium battery safety is becoming an increasingly important topic. These batteries now power everyday essentials such as phones, laptops and power tools, and they are increasingly used as leisure battery systems in caravans and motorhomes. When installed and maintained correctly, lithium leisure batteries are safe, efficient and extremely reliable. However, poor installation, incorrect charging or unnoticed damage can significantly increase the risk of fire.
Understanding those risks helps protect not only your vehicle but also other vehicles stored nearby.
Why lithium batteries are becoming more common in leisure vehicles
Lithium leisure batteries are popular within the touring community because they are lighter, charge faster and last considerably longer than traditional lead-acid batteries. Many caravan and motorhome owners find that they offer improved performance and greater off-grid capability.
As their use increases, so does the need for awareness around safe installation and correct maintenance. Lithium battery fires in motorhomes and caravans are rare, but when they do occur, they can escalate quickly.
How lithium battery fires differ from conventional fires
Lithium-ion batteries behave very differently from traditional fuel sources if they fail. A damaged or faulty battery can enter a process known as thermal runaway, where it overheats internally and rapidly ignites. These fires burn at extremely high temperatures and can release flammable gases. In some cases, they may even re-ignite after appearing to have been extinguished.
Standard fire extinguishers are often ineffective against lithium battery fires. Specialist lithium fire suppression equipment is typically required. Within a caravan or motorhome storage environment, this is particularly important, as the heat from one vehicle can quickly spread to others nearby.
This is why prevention and early identification are critical.
Common causes of lithium battery incidents
Most lithium battery incidents are preventable. They are often linked to incorrect charging equipment, overcharging, water ingress, physical damage or poorly installed aftermarket systems. Batteries that have been modified or installed without competent knowledge can significantly increase the risk.
Quality also matters. Imported or non-certified battery systems may not meet recognised UK safety standards, which can increase the likelihood of failure
Warning signs you should never ignore
Early warning signs should always be taken seriously. A lithium battery that becomes swollen, unusually hot, leaks fluid or produces a strong chemical smell should be treated as unsafe. Visible damage to wiring or casing is another clear indicator that professional inspection is required.
Acting early can prevent far more serious consequences.
Preparing your caravan or motorhome for storage
Before placing your caravan or motorhome into storage, it is sensible to check that your lithium leisure battery system is correctly installed and in good condition. Chargers should be disconnected during storage, and loose rechargeable items such as damaged power banks or vapes should not be left inside the vehicle.
Manufacturer-approved charging equipment should always be used, and battery compartments should be inspected periodically for signs of deterioration. Safe caravan storage is not just about perimeter security. It also depends on responsible vehicle preparation.
What to do if you suspect a lithium battery problem
If you notice heat, smoke, or any unusual smells from your vehicle while on-site, move away immediately and inform the storage team. If there are any signs of fire, contact emergency services by dialling 999. Lithium battery fires should only be handled by trained individuals using appropriate specialist equipment.
Safe storage is a shared responsibility
The use of lithium batteries in caravans and motorhomes continues to grow rapidly. This is not intended to cause concern, but to encourage informed and responsible ownership.
Lithium batteries are safe when installed correctly, maintained properly and monitored for early warning signs. By understanding lithium battery safety in caravans and motorhomes, you help protect your own vehicle, neighbouring vehicles and the wider storage environment.
At Secure Storage, we believe safety is about more than locks and gates. It is about knowledge, awareness and responsible ownership.
Stay safe and travel smart.