Drop-in lithium for your touring caravan.
Most UK touring caravans leave the factory with a lead-acid or AGM leisure battery that gives you around half its rated capacity. A TITAN drops into the same locker, delivers close to 100% usable capacity, weighs far less, and shrugs off a winter laid up without the sulphation damage that writes off a lead-acid.
Why caravan owners switch to lithium
A touring caravan spends most of its life parked on a drive or in storage, then gets used hard over a weekend or a fortnight. That pattern is exactly what kills a lead-acid battery - it sulphates while sitting, and it sags under load when you actually need it. Lithium does neither.
The biggest gain is real usable capacity. A lead-acid or AGM battery is generally safe to use only to 50% depth of discharge, so a 100Ah lead-acid gives you roughly 50Ah in practice. A 100Ah TITAN gives you close to all of it. On a club site with no electric hook-up - a Certificated Location or a CL - that difference decides whether your TV, fridge and lighting last the weekend or not.
The second gain is the flat discharge curve. Lithium holds its voltage right across the discharge cycle, so your fridge, lighting and water pump run at full performance to the end of charge. A lead-acid sags as it depletes, which means appliances run poorly and a motor mover can stall on a tired battery. Lithium holds its voltage flat even under the very high surge current a motor mover demands - giving reliable, full-power operation every time.
The weight saving is real too. A standard 110Ah lead-acid leisure battery typically weighs around 28 to 30 kg. A TITAN of equivalent usable capacity can be half that. For caravans where every kilogram counts against the payload, this can make a meaningful difference.
Finally, winter storage. Caravans often sit unused for months. Lead-acid hates sitting at a partial state of charge and sulphates badly if left. Lithium self-discharges very slowly and is not damaged by sitting part-charged, so a battery that goes away in October can come back in March and still be in good health.
Find your caravan brand
Pick your make for model-by-model sizing, locker details and fitting notes. More brands are being added.
- Adria - Astella, Alpina, Adora, Altea and the wider Adria touring range
- Bailey - Discovery, Pegasus, Unicorn and Alicanto Grande
- Bessacarr - dealer-special caravans built to a higher trim specification
- Buccaneer - Skyliner and Starliner luxury twin-axle caravans
- Coachman - Acadia, VIP, Laser and Lusso
- Elddis - Whirlwind, Avante and Crusader
- Sprite - the UK's best-selling entry-level caravan range
- Sterling - heritage and used caravans
- Swift - Basecamp, Challenger, Conqueror and Elegance Grande
- Xplore - the lightweight XC range
Not listed? Most UK caravans use a 12V leisure battery in an external front or side locker, so the sizing and fitting advice carries across even if your exact brand is not listed here.
Sizing a caravan battery
Match your battery to how you actually use the caravan, not to what came fitted. These are starting points - measure your locker and check your payload before ordering.
| Use | What it covers | Good fit |
|---|---|---|
| Weekend touring, mostly hook-upServiced pitches, mains charger tops up overnight | TV, lighting, fridge and water pump; minimal off-grid demand | 100Ah |
| Touring with a motor moverMotor mover adds a very high surge draw during pitch manoeuvring | Standard caravan loads plus reliable motor mover voltage hold | 100Ah to 150Ah |
| Regular off-grid / club CLs, no EHUCertificated Locations, rallies and remote club sites | Full independence; TV, fridge and lighting for two to three nights from solar | 150Ah to 180Ah |
| Twin-axle luxury, inverter + Alde electricHigh-spec caravans with electric heating elements and inverter loads | Extended off-grid comfort; inverter for laptops, appliances and heating | 180Ah to 230Ah |
These are starting points, not a guaranteed fit. Always measure your locker including the height clearance above the terminals before ordering. On single-axle caravans, check your payload and MTPLM margin - a heavier battery may affect what else you can carry. Use the battery size calculator to total your actual daily draw.
Where the battery lives, and the drop-in
Most UK caravans mount the leisure battery in an external locker at the front - often on the offside, sometimes in a combined service locker alongside the mains inlet and gas regulator. Some models, including certain Bailey caravans, use a central underfloor battery box instead. Either way, TITAN packs are built to the standard DIN leisure battery footprint, so the upgrade is usually a genuine drop-in: disconnect the old battery, lift it out, lower the TITAN in, reconnect.
The TITAN case is sealed to IP67, which makes it well suited to the damp, exposed conditions typical of an external caravan locker. The RJ45 comms ports are rated to IP32 while a cable is plugged in, so keep any connected ports clear of standing water and away from direct spray.
Before ordering, measure the internal dimensions of your locker carefully - including the height clearance above the terminal positions. Terminal height is the most common reason a battery that matches the footprint still does not fit. If you are unsure, send us a photo and measurements and we will advise honestly.
Charging a caravan
A touring caravan is towed rather than driven, so the charging picture is different from a motorhome or a campervan. There are three real sources:
230V mains hook-up through the onboard charger or PSU. This is the main charging source on a serviced pitch at a caravan club site or commercial park. The caravan's built-in mains charger tops the battery up overnight. If your charger has a lithium or AGM profile setting, use it. If not, check the charger compatibility list to confirm the charge voltage sits within the safe range for lithium.
Roof solar through an MPPT controller. Many caravans in the upper ranges come with a factory-fitted solar panel and MPPT charge controller, and it is also one of the most popular and cost-effective retrofits. Solar is the key source on Certificated Locations and club CLs with no electric hook-up - the battery charges through the day and powers the van through the night. A lithium battery accepts charge faster and more efficiently than lead-acid, which means more back from the same panel area. See the solar sizing guide for working out panel and controller requirements.
Trickle from the tow car through the 12S or 13-pin plug. While towing, the 12S connection carries a small maintenance current from the tow car to keep the caravan fridge running and provide a light top-up to the leisure battery. This is not a meaningful charge source - it is a maintenance trickle, not a fast charge - but it keeps the battery topped up during a long drive and requires no special wiring or upgrades beyond the standard 13-pin socket.
Every TITAN carries a custom BMS with a built-in low-temperature charge heater, so it accepts charge safely down to -30C. It comes with a lifetime, fully transferable warranty and is inspected, comms-tested and function-checked at our end-pack QC bench in Cheltenham before it ships.
