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EFB batteries

Looking for a battery for a car with Start-Stop? On our Start-Stop batteries page you can compare AGM and EFB from Varta, Exide and Tudor by capacity and price.

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

EFB car batteries

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

Order now with express shipping: your product ships tomorrow and arrives on Tuesday before 5 PM (Spain mainland and Portugal only).

Before you buy: check 3 key points

Although the batteries shown are sourced from information provided by manufacturers, we recommend checking on your current battery:

Dimensions (length × width × height, including terminals and protrusions)
The dimensions shown are the maximum of the battery and include the height of the terminals, small ridges at the base and any lateral protrusions. Measure your current battery completely, from edge to edge. The new one must be the same size or slightly smaller — never larger, it would not fit in the housing.
Positive terminal (left or right viewed from the front — check the battery photo carefully)
Stand facing the battery, with the manufacturer's label facing you and the terminals on top. Locate the terminal marked with +: if it is on your right, it is "positive right"; if it is on your left, it is "positive left". Do not rely on how the battery is mounted in the car — the position is always measured looking only at the battery itself.
Technology (AGM, EFB or conventional — the same as your current battery or higher)
Depending on the manufacturer, the same technology may be labelled differently: AGM may also appear as VRLA, AGM Start-Stop or AGM Deep Cycle. EFB may appear as EF, EFB+ or Enhanced Flooded Battery. Conventional may appear as SLI, Lead-Acid, Wet or Standard. If your vehicle has Start-Stop, the battery must be AGM or EFB — never conventional.

If you have any questions, just ask us and we'll be glad to advise you with no obligation.

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.