Fulmen
Fulmen FL550 · Start-Stop battery 12V 55Ah 540A
Reference: BOL-FULMEN-FL550 · EAN 3661024046527
The Fulmen FL550 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.
Fulmen FL550 · Start-Stop battery 12V 55Ah 540A images
- Voltage
- 12V
- Capacity
- 55Ah
- Cold cranking amps (EN)
- 540A
- Technology
- EFB
- Dimensions (L × W × H)
- 207 × 175 × 190 mm
- Polarity
- Positive terminal on the right
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14 days to return your order
If it does not fit, you have 14 days from delivery to return it unused.
Does it fit your vehicle? Check by number plate or VIN
Enter your number plate or chassis number (VIN): we check whether this battery is compatible with your vehicle.
Who the Fulmen FL550 is for
The Fulmen FL550 is designed for automatic engine stop and regenerative braking. In a Start-Stop car, the FL550 keeps the radio, climate control and lights running with the engine off without losing capacity.
At 55 Ah it covers petrol compacts and small diesels, the best-selling format in Europe. The FL550 belongs to the Fulmen FULMEN EFB range. More Fulmen batteries
Fulmen FL550 vs FL600 and FK600
How the FL550 compares with Fulmen batteries of similar size and capacity:
| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulmen FL550 (this one) | 55 Ah | 540 A | 207 × 175 × 190 | right | 14.1 kg |
| Fulmen FL600 | 60 Ah | 640 A | 242 × 175 × 190 | right | 17 kg |
| Fulmen FK600 | 60 Ah | 680 A | 242 × 175 × 190 | right | 17.9 kg |
- Fulmen FL600: 5 Ah more, 100 A more cranking power, a different case (242 × 175 × 190 mm).
- Fulmen FK600: 5 Ah more, 140 A more cranking power, a different case (242 × 175 × 190 mm), AGM technology.
Part numbers and codes for the Fulmen FL550
This is how the Fulmen FL550 appears on the label and in parts catalogues:
| Commercial reference | FL550 |
|---|---|
| EAN | 3661024046527 |
| Case size (EN) | L1 |
| Not to be confused with | Fulmen FC550 (55 Ah, 460 A) |
Equivalents and alternatives to the Fulmen FL550
As the FL550 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 |
| Tudor TL550 | EFB | 55 Ah | 540 A | 207 × 175 × 190 |
Before ordering the FL550, check this
- The FL550 needs 207 × 175 × 190 mm of space (European case size L1): measure it with the hold-down clamp in place.
- Polarity of the FL550: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- Your current battery should say about 55 Ah; a little more is also fine.
- Check the EN amps on your battery: if it says 540 A or less, the FL550 covers your engine.
- The FL550 is an EFB: it suits cars that had an EFB or a conventional battery. If yours had an AGM, fit another AGM.
What it means that the FL550 is EFB
Inside, the FL550 uses EFB technology, a reinforced version of the flooded battery. The FL550 works with normal chargers that have a lead-acid or EFB mode.
Frequently asked questions about the Fulmen FL550
FL550 or FL600: which one suits me?
Compared with the FL550, the Fulmen FL600 has 5 Ah more and 100 A more cranking power. If your current battery says 640 A or more, choose the FL600; if it says 540 A or less, the FL550 is enough. Mind the space: the FL600 measures 242 × 175 × 190 mm.
Can the Fulmen FL550 be used in a car with Start-Stop?
Yes, the FL550 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 Fulmen FL550 weigh?
14.1 kg, with 55 Ah of capacity. For reference, the Fulmen FL600 (60 Ah) weighs 17 kg.
Which battery is equivalent to the Fulmen FL550?
In EFB or AGM, with its dimensions and polarity: Exide EL550 and Tudor TL550. A conventional battery does not replace the FL550.
What case size is the Fulmen FL550?
Case size L1: 207 × 175 × 190 mm. The FL550 fits any standard L1 battery tray such as the Exide EL550.
Which side is the positive terminal on the Fulmen FL550?
On the FL550, 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.
More batteries to compare with the FL550
- More start-Stop batteries (AGM and EFB)
- The whole Fulmen range
- Varta N60 · 60 Ah, 640 A, 242×175×190 mm
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