Why a Lithium Leisure Battery is a Game-Changer

If you’re an avid campervanner, caravanner, or motorhomer, you’ve likely heard about lithium leisure batteries. They promise longer-lasting power, faster charging, and better efficiency—but are they worth the investment? To find out, I put a lithium leisure battery through its paces over the past year, testing it in real-world conditions across several countries.

Lithium Leisure Battery Points:

• Lithium leisure batteries offer superior efficiency and longevity compared to traditional batteries.
• Various amp-hour units are available, including 100ah, 105ah, and 120ah battery options.
• Cold weather isn’t great for lithium; the BMS may not allow the battery to charge due to possible battery damage.
• The battery on test was a 120ah Avon ALFP12120BT lithium leisure battery. It was supplied by battery specialists BBL Batteries.

Pushing a Lithium Leisure Battery to the Limit

This wasn’t a lab test—it was an adventure. Over 12 months, my lithium leisure battery endured extreme conditions, from the scorching heat of the Sahara Desert to freezing temperatures in Europe. It powered multiple caravans, survived off-grid trips, and even kept a Bearded Dragon warm on a winter getaway.

For comparison, two caravans took part in the test. One caravan was fitted with a traditional lead-acid battery, while the other used a lithium leisure battery. The difference was clear from the start, with lithium providing consistent power and lasting far longer without recharging.

Why fit a lithium leisure battery?

The obvious advantage is longevity, both in terms of use when on holiday and overall lifespan. A lead/acid battery ‘drops away’ when a load is put across it, reaching a 50% depth of discharge (DoD). In contrast, the voltage of a lithium battery stays high until the battery is around 90% DoD but then drops away quickly. The voltage effect of lithium allows your accessories and equipment to operate much longer while maintaining a high level of performance. In real-world terms, I wanted to try a battery that would make my life easier when holidaying at locations that didn’t have electric hook-up points. This included sites without wash blocks, so, as a family of four, we’d charge devices overnight and use the shower four times daily. This is in addition to general lighting and heating use.

As with all batteries, they should have a long life if you treat them well. A standard lead/acid battery could complete 500 cycles in its lifetime, whereas a Lithium battery could complete 2000 cycles at 100% DoD or 6000 cycles at 50% DoD. Granted, I borrowed the battery for the season, so the purchase price versus service life equation wasn’t a factor, but a battery that costs four times as much as a comparable lead/acid that could last ten times as long is worth considering.

The Benefits of a Lithium Leisure Battery

1. Longer-Lasting Power

Unlike lead-acid batteries, which lose voltage as they discharge, a lithium leisure battery maintains a steady power supply until nearly depleted. This means your lights, heating, and appliances run efficiently for much longer.

2. Incredible Lifespan

A lithium leisure battery can last significantly longer than a traditional battery:

• Up to 6,000 charge cycles at 50% depth of discharge (DoD)
• Four times the lifespan of a lead-acid battery

This makes it a cost-effective option in the long run, even with a higher upfront price.

3. Perfect for Off-Grid Adventures

If you enjoy off-grid camping, a lithium leisure battery gives you the freedom to stay longer without worrying about power. During my trip, I discovered that many campsites still had non-electric pitches available, allowing me to save money while enjoying prime locations.

Charging and Monitoring Made Easy

A common question is whether a lithium leisure battery is compatible with existing caravan charging systems. In my case, the caravan charger worked fine, bringing the battery to 95% capacity, while my 100W Truma solar panel easily handled top-ups.

The built-in Bluetooth monitoring system was another game-changer. Using a simple phone app, I could check battery levels at any time—especially useful during remote travels where power conservation is crucial.

High-Powered Devices? No Problem for a 12v leisure battery

Some worry that a lithium battery can’t handle high-current devices like motor movers and inverters. Throughout the test, I successfully powered:

• A dual-motor mover on both single and twin-axle caravans.
• A laptop from an inverter.
• A heat source for my daughter’s Bearded Dragon, Derek, while off-grid.

Cold Weather Performance

Cold temperatures are one of the few downsides of a lithium leisure battery. While it functions perfectly in freezing weather, it won’t charge below 0°C due to potential cell damage. Some lithium models have heating elements to prevent this issue, so winter campers may want to explore those options. A branded battery with a tried-and-tested BMS (battery management system) is essential in extreme conditions.

Benefits of Lithium Leisure Batteries: Key Features to Consider.

First and foremost, consider the battery capacity. This determines how long your devices can be powered before the battery needs recharging. Evaluate your energy needs carefully; a higher-capacity battery is essential if you enjoy longer trips or have numerous devices.

Safety features are another critical aspect. Look for batteries with thermal management and overcharge protection. These features provide peace of mind, ensuring your adventures aren’t interrupted by overheating issues or other safety concerns. A robust battery management system, or smart BMS, is a must-have.

The weight and size of the battery impact installation. Bailey battery boxes may be smaller than some, although Avon has batteries to fit such compartments.

Compatibility with existing systems ensures seamless integration into your leisure vehicle. It’s vital to check that the battery you choose works well with your current setup, including any chargers or solar systems you might have. A Truma solar charge controller may have switches on the bottom of the unit that enable lithium charging.

Exploring Lifepo4 Leisure Batteries

Lifepo4 batteries are making waves in the leisure battery sector. They offer exceptional safety, stability, and longevity and are a top choice for those who prioritise safety without sacrificing performance.

Longevity is another strong suit of Lifepo4 batteries. Many users report these batteries lasting over 2000 charge cycles, offering years of reliable service. This durability makes them a cost-effective option in the long run.

The consistent power output of Lifepo4 batteries ensures your devices run smoothly throughout use. Whether it’s powering a compressor fridge, lighting, or other devices, you can rely on these batteries to deliver consistent and stable power.

Many leisure vehicle owners prefer Lifepo4 batteries because they are lightweight. This feature is particularly advantageous for applications where weight reduction is beneficial, such as campervans, caravans, or motorhomes.

Should You Invest in a Lithium Leisure Battery?

A traditional battery may suit your needs if you stick to campsites with electric hook-ups. But if you love off-grid camping, longer battery life, and fast recharging, a lithium leisure battery is worth considering. It is an investment, though, as the battery tested was almost £900.

Frequently Asked Questions

What are Lithium Leisure Batteries?

Lithium leisure batteries are advanced energy storage solutions designed for use in caravans, motorhomes, boats, and other leisure vehicles. They offer high performance, longer lifespan, and faster charging than traditional lead-acid batteries.

How do Lithium Leisure Batteries differ from Lead-Acid Batteries?

Lithium leisure batteries have a higher energy density, which means they can store more energy in a smaller and lighter package. They also have a longer lifespan, faster charging times, and are maintenance-free compared to lead-acid batteries.

Are Lithium Leisure Batteries safe to use?

Yes, lithium leisure batteries are safe to use when handled properly. They are equipped with built-in safety features such as overcharge protection, over-discharge protection, and short-circuit protection to prevent accidents and ensure reliable performance.

How do I maintain Lithium Leisure Batteries?

Lithium leisure batteries require minimal maintenance compared to lead-acid batteries. To extend their lifespan, charge them often, avoid excessive charging or fully discharging, and keep them in a cool, dry location when not in use.

Can I replace my Lead-Acid Battery with a Lithium Leisure Battery?

Yes, you can replace your lead-acid battery with a lithium leisure battery in most leisure vehicles. However, it is important to check compatibility with your vehicle’s charging system and the solar charge controller settings if a solar panel is fitted.

Will a 100ah or 105ah lithium leisure battery power a caravan or motorhome?

A 100ah or 105ah lithium battery can provide the necessary power for your vehicle, but it’s important to consider your setup’s specific requirements. With the increasing energy demands of modern appliances and gadgets, opting for a higher amp-hour rating like 105ah might give you extra power security during your travels.

Should I buy an unbranded lithium leisure battery or spend extra on a trusted brand?

When choosing between an unbranded lithium leisure battery and a trusted brand, it’s important to consider the potential risks and benefits. While unbranded batteries may be more budget-friendly, they often lack the quality control and durability that come with established brands. Investing in a trusted brand can give you peace of mind, knowing you’re getting a reliable product that will last longer and perform better in the long run.