Guide Category

Start/Stop Systems & Batteries

Future-proof your Start/Stop vehicle with in-depth explainers on AGM and EFB technology, BMS resets, and cold-weather readiness.

Start/Stop
Start/Stop

Why Start/Stop Systems Need AGM or EFB (Not Standard Flooded)

Understand why vehicles with Start/Stop technology require AGM or EFB batteries, not standard flooded batteries. Learn what happens if you fit the wrong type, how Start/Stop systems work, and why the correct battery technology matters.

9 min read

Published: 25/01/2025

Why Start/Stop needs special care

  • Systems monitor internal resistance and disable themselves if the wrong battery is fitted.
  • Charging profiles differ—AGM can accept higher voltages, so coding is critical.
  • Diagnostic trouble codes often appear after battery swaps; always perform a relearn.