The lithium battery built for VW campers.
VW conversions are tight on space, and that is exactly where most leisure batteries fall down. You either squeeze in something small and run flat, or you cannot fit the capacity you want without rebuilding the seat base. TITAN makes a compact DIN battery that no one else offers in the UK, so a VW California, Transporter conversion or Grand California can carry real lithium capacity in the space it already has.
Why VW owners come to us
The problem with a VW is rarely the battery, it is the bay it has to live in. Many vans were designed around a standard lead-acid case, and when you go to fit a big lithium pack you find it will not drop in without modification. Our 105Ah is the answer to that. It is a compact size that no other UK brand makes, so you get proper lithium capacity in a footprint a VW can actually take.
It is not exclusive to VW, plenty of small campers and day vans use it, but it has become the default for owners who want lithium without cutting up the van. If your build has room for more, the 120Ah, 150Ah and 180Ah drop into larger trays, but a lot of Californias and Transporters are happiest with the compact case.
VW California and the rest of the range
A starting point by vehicle. Space varies hugely between conversions, so always measure your bay before you buy.
| Your VW | What it is like | Usual fit |
|---|---|---|
| VW California (T5, T6, T6.1) | Factory camper, tight under-seat space | 105Ah compact |
| VW Grand California | Crafter-based, bigger build and more kit | 150Ah to 180Ah |
| VW Caddy California | Micro-camper, minimal space | 105Ah compact |
| VW Transporter conversion | Depends entirely on the converter's layout | 105Ah to 180Ah |
These are popular pairings, not a guaranteed fit. Bays differ by year, trim and converter, so check the battery dimensions against your space, or send us a photo and a measurement and we will tell you honestly what works.
Fitting it in a VW
Most owners fit the leisure battery under a seat or in the original battery location. A couple of things are worth knowing before you do:
- Under the seat. The compact 105Ah case is designed to fit where a larger lithium pack will not. Measure the height as well as the footprint, as the seat base is usually the limiting factor.
- In the engine bay. On some VW variants the leisure battery can sit alongside the engine starter battery. That is fine with us, with two sensible precautions below.
- Keep water off the comms. If it lives anywhere rain can reach, make sure roof or door guttering does not drip onto the communications area of the battery.
- Manage engine heat. If it sits next to the engine with no firewall between them, add some foil-lined insulation in the gap to keep radiated heat off the pack.
The case is IP67 rated, so the casing itself shrugs off dust and water. The only caveat is the RJ45 comms ports, which drop the rating to IP32 while a cable is plugged in, so route cables to keep standing water away from a connected port.
Built for the way you actually use it
A VW gets used in short, frequent trips and the odd longer tour, which is hard on a lead-acid battery and easy for lithium. You can use the full rated capacity, charge it fast from a DC-DC charger or a solar panel, and leave it sitting over winter without the slow damage a lead-acid pack suffers. The custom TITAN BMS handles the cold too, with charging safe down to -30C thanks to a built-in heater.
To see how long a 105Ah runs your fridge, lights and heater, look at the 105Ah runtime guide. To work out the right size for your kit, use the battery size calculator. Not a VW, or weighing up other base vans? Start with the general campervan battery guide.
