# Tudor TL550 · Start-Stop battery 12V 55Ah 540A

![Tudor TL550 · Start-Stop battery 12V 55Ah 540A](https://bateriasonline.es/2646-home_default/tudor-tl550.jpg)

> Tudor TL550: 55 Ah Start-Stop battery, 540 A (EN), 207×175×190 mm, positive terminal on the right, L1 case, EFB. Equivalent to Exide EL550.

**Category:** [Start-Stop batteries (AGM and EFB)](https://bateriasonline.es/en/start-stop-batteries-agm-efb) → [Tudor](https://bateriasonline.es/en/tudor-batteries)

- **Canonical URL**: https://bateriasonline.es/en/tudor-tl550
- **Language**: en
- **Brand**: Tudor
- **Reference**: BOL-TUDOR-TL550
- **EAN**: 3661024056670
- **MPN**: TL550
- **Price**: 75,13 € (VAT incl., Spain)
- **Last updated**: 2026-11-10

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Tudor |
| Range | TUDOR EFB |
| Application | Start-Stop cars |
| Technology | EFB |
| Voltage | 12 V |
| Capacity | 55 Ah |
| Cold cranking amps (EN) | 540 A |
| Length | 207 mm |
| Width | 175 mm |
| Height | 190 mm |
| Weight | 14.1 kg |
| Polarity | Positive terminal on the right |
| Case size | L1 (207 × 175 × 190 mm) |

## Quick description

The Tudor TL550 is a Start-Stop battery (EFB) with 12 V, 55 Ah and 540 A cold cranking current, case size L1 (207 × 175 × 190 mm), with the positive terminal on the right.

## Description

## Where the Tudor TL550 fits

The Tudor TL550 is designed for automatic engine stop and regenerative braking. It takes repeated discharges without losing capacity the way a conventional battery would.
At 55 Ah it covers petrol compacts and small diesels, the best-selling format in Europe. The TL550 belongs to the Tudor TUDOR EFB range. [See all Tudor batteries](https://bateriasonline.es/en/tudor-batteries)

## Tudor TL550 vs TL600 and TK620

Torn between the TL550 and another similar Tudor? This is what changes:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Tudor TL550 (this one) | 55 Ah | 540 A | 207 × 175 × 190 | right | 14.1 kg |
| Tudor TL600 | 60 Ah | 640 A | 242 × 175 × 190 | right | 17.5 kg |
| Tudor TK620 | 62 Ah | 680 A | 242 × 175 × 190 | right | 17.9 kg |

- Tudor TL600: 5 Ah more, 100 A more cranking power, a different case (242 × 175 × 190 mm).
- Tudor TK620: 7 Ah more, 140 A more cranking power, a different case (242 × 175 × 190 mm), AGM technology.

## Part numbers and codes for the Tudor TL550

Shops, garages and catalogues identify the TL550 with these codes:

| Commercial reference | TL550 |
|---|---|
| EAN | 3661024056670 |
| Case size (EN) | L1 |
| Not to be confused with | Tudor TC550 (55 Ah, 460 A) |

## Equivalents and alternatives to the Tudor TL550

As the TL550 is an EFB, only EFB or AGM batteries of the same size and polarity are listed: you can step up to AGM, but not down to a conventional battery.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide EL550 | EFB | 55 Ah | 540 A | 207 × 175 × 190 |
| Fulmen FL550 | EFB | 55 Ah | 540 A | 207 × 175 × 190 |

## What to look at before buying the TL550

- Measure the space: the TL550 takes up 207 × 175 × 190 mm (European case size L1).
- With the terminals facing you, the positive terminal of the TL550 is on the right.
- Capacity of the TL550: 55 Ah; the same as your current battery or slightly more is fine.
- Check the EN amps on your battery: if it says 540 A or less, the TL550 covers your engine.
- The TL550 is an EFB: it suits cars that had an EFB or a conventional battery. If yours had an AGM, fit another AGM.

## EFB technology in the TL550

Inside, the TL550 uses EFB technology, a reinforced version of the flooded battery. It is the choice for cars with basic Start-Stop.

## Frequently asked questions about the Tudor TL550

### TL550 or TL600: which one suits me?

Compared with the TL550, the Tudor TL600 has 5 Ah more and 100 A more cranking power. If your current battery says 640 A or more, choose the TL600; if it says 540 A or less, the TL550 is enough. Mind the space: the TL600 measures 242 × 175 × 190 mm.

### Can the Tudor TL550 be used in a car with Start-Stop?

Yes, the TL550 is an EFB: it suits Start-Stop without brake energy recovery, or cars that already had an EFB. If your car left the factory with an AGM, fit another AGM.

### How much does the Tudor TL550 weigh?

14.1 kg, with 55 Ah of capacity. For reference, the Tudor TL600 (60 Ah) weighs 17.5 kg.

### Which battery is equivalent to the Tudor TL550?

In EFB or AGM, with its dimensions and polarity: Exide EL550 and Fulmen FL550. A conventional battery does not replace the TL550.

### What case size is the Tudor TL550?

Case size L1: 207 × 175 × 190 mm. The TL550 fits any standard L1 battery tray such as the Exide EL550.

### Which side is the positive terminal on the Tudor TL550?

On the TL550, the positive terminal is on the right with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.

### Can I fit the Tudor TL550 if my car came with an AGM battery?

Only if the TL550 is AGM. A car that leaves the factory with AGM must always run AGM; an EFB in its place will not last and may trigger dashboard warnings.

## Keep comparing: alternatives to the TL550

- [All start-Stop batteries (AGM and EFB)](https://bateriasonline.es/en/start-stop-batteries-agm-efb)
- [More Tudor models](https://bateriasonline.es/en/tudor-batteries)
- [Varta N50](https://bateriasonline.es/en/varta-n50) · 50 Ah, 550 A, 207×175×190 mm
- [Varta N60](https://bateriasonline.es/en/varta-n60) · 60 Ah, 640 A, 242×175×190 mm

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