# Car batteries

> Buy your car battery online from over 450 Varta, Exide, Tudor and Fulmen models. Search by VIN or vehicle, final price with VAT and 14 days to return it.

**Category:** [Beginning](https://bateriasonline.es/en/) → [Battery types: starter, deep cycle, traction and stationary](https://bateriasonline.es/en/batteries) → [Starter batteries](https://bateriasonline.es/en/starter-batteries)

- **Canonical URL**: https://bateriasonline.es/en/car-batteries
- **Language**: en

## Description

Enter your VIN or vehicle model and buy a compatible car battery; in Madrid, Barcelona, Málaga, Seville, Valencia, Zaragoza and Pontevedra we also offer home fitting.

**Most searched:** A shortcut to the car battery models people look up most, with capacity and cold cranking current shown so you can compare them.
- [Varta E44 77Ah 780A](https://bateriasonline.es/en/varta-e44)
- [Tudor TB740 74Ah 680A](https://bateriasonline.es/en/tudor-tb740)
- [Exide EA770 77Ah 760A](https://bateriasonline.es/en/exide-ea770)
- [Varta D24 60Ah 540A](https://bateriasonline.es/en/varta-d24)
- [Varta H3 100Ah 830A](https://bateriasonline.es/en/varta-h3)
- [Varta E11 74Ah 680A](https://bateriasonline.es/en/varta-e11)
- [Exide EA722 72Ah 720A](https://bateriasonline.es/en/exide-ea722)
- [Tudor TA722 72Ah 720A](https://bateriasonline.es/en/tudor-ta722)

The right car battery is the one whose dimensions, terminal position and cranking power match your vehicle. Every model in this section lists those figures so you can compare them against the label of your current battery.
For engines with automatic stop and start, go to the dedicated start-stop section instead.

## How to read your old battery before buying

Take a photo of the label and write down four details: **Ah**, **CCA or EN**, the external **length × width × height** in mm and the **side of the positive terminal** when the terminals face you. Also look at the base: many European cars hold the battery with a lip (bottom hold-down) along the lower edge, and a case without it will not clamp properly.
Asian vehicles often use narrower cases and thinner terminals. If your car is Japanese or Korean, check the terminal diameter as well as the layout.

## Petrol, diesel and electrical load

A small petrol engine may start comfortably with 400–500 A EN, while a large diesel often asks for 700 A or more. Extra equipment such as heated seats, towing electrics or an audio amplifier raises the energy demand, so a step up in Ah within the same case size can be reasonable. Stay within the format that fits the tray.

## Flooded, EFB or AGM in a conventional car

A car that left the factory with a flooded battery works perfectly with another flooded unit. Moving up to EFB adds cycling resistance and is a safe upgrade. AGM is usually unnecessary without start-stop. If your car does stop the engine at idle, use our [EFB and AGM start-stop batteries](https://bateriasonline.es/en/start-stop-batteries-agm-efb). To compare brands, see the ranges of [VARTA](https://bateriasonline.es/en/varta-batteries) and [EXIDE](https://bateriasonline.es/en/exide-batteries), or return to all [starter batteries](https://bateriasonline.es/en/starter-batteries).

## Frequently asked questions

### Do I need to code the battery after replacing it?

Many recent cars with a battery management sensor need the new battery registered with a diagnostic tool, especially when changing capacity or technology. Older cars do not.

### How long does a car battery usually last?

It depends on climate, trip length and electrical load. Heat, frequent short journeys and long periods parked shorten life the most.

### What happens if the polarity is reversed?

Cables may not reach, and forcing a connection with reversed polarity can damage fuses, the alternator and control units. Always confirm the terminal layout.

## Choose by brand

The same car batteries, filtered by manufacturer. Each brand has its own page with all its references and a buying guide.
- [Exide car batteries](https://bateriasonline.es/en/exide-car-batteries) (72)
- [Tudor car batteries](https://bateriasonline.es/en/tudor-car-batteries) (72)
- [Fulmen car batteries](https://bateriasonline.es/en/fulmen-car-batteries) (61)
- [Deta car batteries](https://bateriasonline.es/en/deta-car-batteries) (61)
- [Long car batteries](https://bateriasonline.es/en/long-car-batteries) (51)
- [Kronobat car batteries](https://bateriasonline.es/en/kronobat-car-batteries) (50)
- [Varta car batteries](https://bateriasonline.es/en/varta-car-batteries) (49)
- [Odyssey car batteries](https://bateriasonline.es/en/odyssey-car-batteries) (26)
- [Optima batteries](https://bateriasonline.es/en/optima-batteries) (8)

Not sure which battery your car takes? See our [car battery by model](https://bateriasonline.es/en/car-battery-by-model) guide: Seat Leon, Volkswagen Golf, BMW 3 Series and more, with the battery for each engine.
**Related guides:** read our car battery guides before you choose.
- [Car battery guides: equivalents, sizes and comparisons](https://bateriasonline.es/en/battery-guides)
- [Car battery sizes: L1-L6, LB1-LB5, B and D (Asian) cases](https://bateriasonline.es/en/car-battery-sizes-l-lb-b-d-cases)
- [Varta, Bosch, Exide and Tudor car battery equivalents table](https://bateriasonline.es/en/varta-bosch-exide-tudor-car-battery-equivalents)

## Products in this category

| Product | Brand | Price |
|---|---|---|
| [Tudor TB740 · Car battery 12V 74Ah 680A](https://bateriasonline.es/en/tudor-tb740) | Tudor | 60,43 € |
| [Varta C14 · Car battery 12V 56Ah 480A](https://bateriasonline.es/en/varta-c14) | Varta | 54,99 € |
| [Varta E44 · Car battery 12V 77Ah 780A](https://bateriasonline.es/en/varta-e44) | Varta | 83,41 € |
| [Varta F18 · Car battery 12V 85Ah 800A](https://bateriasonline.es/en/varta-f18) | Varta | 95,57 € |
| [Varta H3 · Car battery 12V 100Ah 830A](https://bateriasonline.es/en/varta-h3) | Varta | 107,38 € |
| [Varta E11 · Car battery 12V 74Ah 680A](https://bateriasonline.es/en/varta-e11) | Varta | 73,17 € |
| [Exide EA612 · Car battery 12V 61Ah 600A](https://bateriasonline.es/en/exide-ea612) | Exide | 53,33 € |
| [Exide EA640 · Car battery 12V 64Ah 640A](https://bateriasonline.es/en/exide-ea640) | Exide | 56,37 € |
| [Exide EB800 · Car battery 12V 80Ah 640A](https://bateriasonline.es/en/exide-eb800) | Exide | 83,61 € |
| [Exide EA654 · Car battery 12V 65Ah 580A](https://bateriasonline.es/en/exide-ea654) | Exide | 75,48 € |
| [Exide EB712 · Car battery 12V 71Ah 670A](https://bateriasonline.es/en/exide-eb712) | Exide | 58,03 € |
| [Exide EA722 · Car battery 12V 72Ah 720A](https://bateriasonline.es/en/exide-ea722) | Exide | 57,74 € |
| [Exide EB740 · Car battery 12V 74Ah 680A](https://bateriasonline.es/en/exide-eb740) | Exide | 60,43 € |
| [Exide EA754 · Car battery 12V 75Ah 630A](https://bateriasonline.es/en/exide-ea754) | Exide | 82,24 € |
| [Exide EB741 · Car battery 12V 74Ah 680A](https://bateriasonline.es/en/exide-eb741) | Exide | 64,89 € |

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*bateriasonline.es — Batteries and accessories · 2026-11-10*