Car battery replacement cost UK (2026): standard, EFB and AGM

Updated 23 July 2026 · OBDCode UK editorial

A standard fitted battery typically costs £100–£220; stop-start EFB or AGM batteries commonly cost £180–£350. Match technology, capacity and CCA, and include battery registration/coding where the vehicle requires it.

Typical UK fitted prices in 2026

WorkTypical price
Standard flooded battery fitted£100–£220
EFB stop-start battery fitted£150–£280
AGM stop-start battery fitted£180–£350
Battery registration/coding£0–£80
Mobile/emergency fitting premium+£20–£80

These are planning ranges, not quotes. Confirm whether VAT, diagnosis, fluids, calibration and related parts are included.

What changes the price?

  • Technology: do not downgrade AGM/EFB to an unsuitable standard battery.
  • Capacity and CCA: physical fit alone is not enough.
  • Coding: some battery-management systems need the replacement registered.
  • Root cause: parasitic drain or alternator fault can flatten the new battery too.

Confirm the fault before authorising the job

Test state of health/CCA after a full charge and measure cranking and charging performance. A low voltage reading shows charge state, not necessarily remaining capacity.

How to compare quotes like-for-like

Confirm battery type, Ah/CCA, warranty, fitting, disposal, coding and charging-system test. Compare like-for-like brands and warranty lengths.

Tools that help with this check

Frequently asked questions

How long should a car battery last?

Often around four to six years, but heat, cold, short journeys, deep discharge and stop-start use can shorten it.

Does a stop-start battery need coding?

Many vehicles require battery registration or adaptation so charging strategy matches the new unit; check the exact model procedure.

Sources and further reading

General guidance for UK drivers, not professional advice. MOT rules follow the DVSA inspection manual (2026 edition).