Motorhomes are two vehicles in one: a base van (usually Ducato, Boxer, Sprinter or Transit) with a starter battery, and a habitation area running on a leisure battery through a split-charge or DC-DC system.
'Won't start' after a weekend away is often a failed split-charge relay draining the starter into the habitation — we diagnose the actual circuit fault before selling you a battery.
Key facts — Motorhomes & campers
- Starter battery
- Base van spec — Ducato, Sprinter, Transit, Boxer
- Leisure battery
- AGM 90–110Ah or lithium LiFePO4
- Common fault
- Split-charge relay stuck closed or fuse blown
- Access
- Often under a bench, wardrobe or driver's seat
What we actually see on these jobs
- We test both circuits — starter and leisure — before selling anything.
- Storage over winter with a solar trickle can mask a failing battery until spring; we spot the pattern.
- We work at storage compounds and driveways alike, discreetly — no clanging around a caravan site at 2am.
Who calls us for this
Owners on a Friday evening loading up for the weekend, buyers collecting a used motorhome from a dealer, and storage-compound customers pulling a van out after winter.
How the callout works
- 1
One call, one price
Postcode, vehicle and symptom on the phone — you get a fixed price before we set off.
- 2
On-site test
Voltage, load and (where relevant) alternator field test at your location.
- 3
Jumpstart or replace
If it holds, you drive off. If it doesn't, we fit the correct battery from van stock.
- 4
Coded and warrantied
BMS coding included where required, warranty paperwork by email before we leave.
Motorhomes & campers — specific questions
Q.Do you test the leisure battery as well?
Yes — it's usually the real issue behind a 'starter battery' complaint after a week off-grid.
Q.Can you fit lithium (LiFePO4) leisure batteries?
We can advise, but a lithium leisure install is a workshop job — we handle the immediate starter-battery fix and refer you if a full lithium changeover is needed.
Q.Will you come to a storage compound?
Yes — West Midlands and surrounding counties routinely. Just make sure you have gate access sorted.
General questions
Q.Can you invoice on account for businesses?
Yes — 30-day account terms available for fleets, lettings, dealers and repeat trade customers. Single monthly PDF invoice.
Q.Do you take the old battery away?
Yes — proper lead-acid recycling included with every fit, no extra charge, no landfill.
Q.Do you code new batteries to the vehicle?
Yes, wherever the manufacturer requires it — BMW, Audi, VW, Mercedes, Ford, Vauxhall, Peugeot/Citroen. OBD-level coding included with every fit that needs it.
Related guides
In short
Motorhome jobs are diagnostic jobs — we work out which circuit is really at fault before we replace anything, and that saves you buying batteries you don't need.