EFB batteries

EFB (Enhanced Flooded Battery) batteries are the reinforced evolution of the conventional flooded battery: thicker plates and additives built for the constant restart cycle of entry-level start-stop systems. Up to twice the cyclic endurance of a standard battery at a lower price than AGM.

  • Cars with basic start-stop (no regenerative braking)
  • Urban driving with many starts per day
  • Upgraded replacement for conventional batteries
  • Taxis and urban fleets

By application

What is the difference between EFB and AGM?

Both are start-stop technologies, but AGM handles more cycles and higher electrical demand (regenerative braking). EFB covers entry-level systems at a lower cost. Rule of thumb: always replace with the same technology or better.

Can I fit an EFB in a car without start-stop?

Yes. It is an upgrade: it withstands more cycles and short trips better than a conventional battery, for a small premium.

Does my car have EFB from the factory?

Check the label on the current battery (EFB/AGM) or search by number plate in our finder: we tell you exactly which technology your vehicle requires.

How long does an EFB battery last?

4 to 6 years in normal use. In intensive urban start-stop driving its reinforced design outlasts a conventional battery.

Other technologies

Compatible batteries

Receive them tomorrow before 2 PM if you order before 6 PM (Spain mainland and Portugal only).

This engine comes with an AGM/EFB battery as standard: the car's charging system requires it even without Start-Stop. If in doubt, message us and we will confirm.

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