Service · AGM specialist
AGM Battery Replacement — Mobile Fitting & Coding
AGM battery replacement on your driveway across the West Midlands. Correct brands, BMS coding included.
AGM batteries (Absorbent Glass Mat) are fitted to nearly every stop-start and premium car built since about 2010. They're not interchangeable with standard flooded batteries — fitting the wrong type kills the new one within months.
We stock Tier-1 AGM brands (Varta, Bosch, Yuasa) in the sizes that fit the vast majority of modern British roads: H6, H7, H8 case sizes from 70Ah to 105Ah.
Key facts — AGM battery fitting
- Chemistry
- AGM (Absorbent Glass Mat)
- Fitted to
- Stop-start, premium and heavy-load electrical systems
- Case sizes stocked
- H6, H7, H8 — 70Ah to 105Ah
- Coding
- Mandatory on BMW, Audi, VW, Mercedes, most modern Fords
What we actually see on these jobs
- AGMs cost more but last longer under stop-start cycling — the maths works out.
- Coding is not optional on modern cars — we do it every time.
- Warranty on Tier-1 AGMs is typically 3–4 years — transferable.
Who calls us for this
Owners of any car built after ~2010 with stop-start, and anyone replacing a battery in a premium marque.
Our four-step process
- 1
Fixed quote
By postcode and reg, before we move.
- 2
Load test
So we're not selling you a battery you don't need.
- 3
Correct spec
AGM, EFB or standard flooded — matched to your car, not what's cheapest.
- 4
Coded & clean
BMS registered, terminals greased, old unit recycled.
AGM battery fitting — specific questions
Q.Can I fit a normal flooded battery to save money?
Not on a stop-start car — it will fail in months and the BMS will disable stop-start immediately.
Q.Do you code the AGM to the car?
Yes, every fit — via OBD on BMW, Audi, VW, Mercedes and Ford.
Q.How long does an AGM last?
Typically 4–6 years with correct coding and healthy charging — longer than a flooded battery under similar duty.
General questions
Q.Are you open 24/7?
Yes — genuine 24/7, including nights, weekends and bank holidays, at the same price as daytime. No unsociable-hours surcharge.
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.
Q.How quickly can you get to me?
Typically 45–60 minutes across the West Midlands from our Oldbury base — faster off-peak and at night when the roads are empty.
Related guides
In short
AGM fitting is a coding job as much as a fitting job — we do both, every time, on your driveway.
AGM needed? Correct fit, coded properly, on the driveway.
Tier-1 stock, mandatory coding, 3–4 year warranty.
Stranded with a flat battery?
Call now or send a WhatsApp — we'll confirm your quote and dispatch the nearest engineer.