What does EFB mean on a battery?

EFB (Enhanced Flooded Battery) is a flooded lead-acid battery reinforced with plate additives and specific separators. It withstands more charge/discharge cycles than a conventional battery but fewer than AGM. EFB is fitted to cars with basic Start-Stop (no regenerative braking).

What is the difference between EFB and AGM?

EFB has liquid electrolyte (reinforced flooded); AGM has it absorbed in glass fibre (sealed, leak-proof). AGM withstands more cycles and is fitted to cars with advanced Start-Stop (regenerative braking). EFB is more affordable and goes in basic Start-Stop.

How long does an EFB battery last?

Between 4 and 6 years under normal conditions — 30% to 60% more than a conventional battery. Lifespan depends on daily start counts (Start-Stop), ambient temperature and short trips. If the car shuts off the engine at many traffic lights, check it from year 4.

Can I replace EFB with a conventional battery?

Not recommended. A conventional (SLI) battery in a cars with basic Start-Stop will degrade within months due to repetitive starting cycles. If the car has Start-Stop, it must use EFB or AGM — never conventional. You CAN upgrade to AGM (superior technology) — EFB can always be replaced by AGM.

Do I need to register the EFB when replacing it?

Depends on the model. Many cars with basic Start-Stop accept EFB without OBD registration, but some manufacturers (especially VAG, Ford, Opel/Stellantis) do require battery registration so the system charges correctly. Check the owner manual or ask us.

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EFB car batteries

EFB batteries (Enhanced Flooded Battery) are the recommended choice for cars with basic Start-Stop. They are a reinforced version of the conventional battery designed to withstand more start/stop cycles.

Built for entry-level Start-Stop, without regenerative braking.
More affordable than AGM while keeping a longer life than conventional.
Replacement: an EFB can be replaced with another EFB or with an AGM (superior technology). Never the other way round.

See all EFB batteries →

Compatible batteries

Receive them tomorrow before 2 PM if you order before 6 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 — Start-Stop requires AGM or EFB)
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.

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Online batteries · Varta distributor · Express 24h delivery · Batteries by capacity (Ah) · by size

EFB car batteries

Compatible batteries

Start-Stop battery Varta A7 12V 70Ah 760A AGM

Start-Stop battery Varta A6 12V 80Ah 800A AGM

Start-Stop battery Varta N70 12V 70Ah 760A EFB

Start-Stop battery Varta A5 12V 95Ah 850A AGM

Start-Stop battery Varta N60 12V 60Ah 640A EFB

Start-Stop battery Varta A8 12V 60Ah 680A AGM

Start-Stop battery Tudor TK720 12V 72Ah 760A AGM

Start-Stop battery Tudor TK820 12V 82Ah 800A AGM

Start-Stop battery Exide EK960 12V 96Ah 850A AGM

Start-Stop battery Exide EK720 12V 72Ah 760A AGM

Start-Stop battery Varta N85 12V 85Ah 800A EFB

Start-Stop battery Tudor TK960 12V 96Ah 850A AGM

Start-Stop battery Varta N65 12V 65Ah 650A EFB

Start-Stop battery Exide EK820 12V 82Ah 800A AGM

Start-Stop battery Varta D54 12V 65Ah 650A EFB

Start-Stop battery Tudor TL954 12V 95Ah 800A EFB

Start-Stop battery Varta E46 12V 75Ah 730A EFB

Start-Stop battery Varta N72 12V 72Ah 760A EFB

Start-Stop battery Tudor TL600 12V 60Ah 640A EFB

Start-Stop battery Tudor TK620 12V 62Ah 680A AGM

Start-Stop battery Varta N80 12V 80Ah 800A EFB

Start-Stop battery Varta N95 12V 95Ah 850A EFB

Start-Stop battery Tudor TL754 12V 75Ah 750A EFB

Start-Stop battery Exide EK620 12V 62Ah 680A AGM

Marine battery Exide EP2100 12V 240Ah 1200A AGM

Marine battery Varta LED240 12V 240Ah EFB

Marine battery Varta LED190 12V 190Ah EFB

Truck battery Varta B90 12V 190Ah 1050A EFB

Start-Stop battery Exide EL752 12V 75Ah 730A EFB

Truck battery Varta C40 12V 240Ah 1200A EFB

Start-Stop battery Exide EL754 12V 75Ah 750A EFB

Start-Stop battery Exide EL954 12V 95Ah 800A EFB

Start-Stop battery Exide EL652 12V 65Ah 650A EFB

Caravan battery Kronobat DP-190-EFB 12V 190Ah 1050A EFB

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