Fulmen

Fulmen FB505 · Car battery 12V 50Ah 360A

Reference: BOL-FULMEN-FB505 · EAN 3661024044394

The Fulmen FB505 is a car battery with 12 V, 50 Ah and 360 A cold cranking current, measuring 200 × 173 × 222 mm, with the positive terminal on the left. Need the positive terminal on the right? The same battery is the Fulmen FB504.

Voltage
12V
Capacity
50Ah
Cold cranking amps (EN)
360A
Technology
Lead-acid
Dimensions (L × W × H)
200 × 173 × 222 mm
Polarity
Positive terminal on the left
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Who the Fulmen FB505 is for

The Fulmen FB505 is made for petrol and diesel cars without automatic engine stop. Its job is to start the engine in the cold with margin to spare and keep the car's electronics powered.

At 50 Ah it covers petrol compacts and small diesels, the best-selling format in Europe. The FB505 belongs to the Fulmen FULMEN Formula range. More Fulmen batteries

Fulmen FB505 codes and part numbers

Shops, garages and catalogues identify the FB505 with these codes:

Commercial referenceFB505
EAN3661024044394
Not to be confused withFulmen FB500 (50 Ah, 450 A, positive terminal on the right), Fulmen FB501 (50 Ah, 450 A), Fulmen FB504 (50 Ah, 360 A, positive terminal on the right)

Fulmen FB505 vs FB605, FB504 and FB501: differences

How the FB505 compares with Fulmen batteries of similar size and capacity:

ModelCapacityCold cranking (EN)Dimensions (mm)PositiveWeight
Fulmen FB505 (this one)50 Ah360 A200 × 173 × 222left12.9 kg
Fulmen FB60560 Ah480 A230 × 173 × 222left14.6 kg
Fulmen FB50450 Ah360 A200 × 173 × 222right12.9 kg
Fulmen FB50150 Ah450 A207 × 175 × 190left12.2 kg
  • Fulmen FB605: 10 Ah more, 120 A more cranking power, a different case (230 × 173 × 222 mm).
  • If the positive terminal of your battery is on the other side, the one you need is the Fulmen FB504 (positive terminal on the right).
  • Fulmen FB501: the same capacity, 90 A more cranking power, a different case (207 × 175 × 190 mm).

Equivalents and alternatives to the Fulmen FB505

Same dimensions and polarity as the FB505, with similar capacity and cranking power; as a conventional battery, the FB505 can also be replaced by an EFB or AGM of the same size if you want more cycles.

ModelTechnologyCapacityCold cranking (EN)Dimensions (mm)
Exide EB505Lead-acid50 Ah360 A200 × 173 × 222
Tudor TB505Lead-acid50 Ah360 A200 × 173 × 222
Deta DB505Lead-acid50 Ah360 A200 × 173 × 222
Long 50D20L50 Ah–202 × 173 × 225
Long 50D20R50 Ah–202 × 173 × 225

What it means that the FB505 is lead-acid

Inside, the FB505 is classic lead-acid: liquid electrolyte and lead plates. It is a robust, well-known technology with a good capacity-to-price ratio, and still the basis of most cars, trucks and traction equipment.

Check this before ordering the Fulmen FB505

  • If your car has Start-Stop, the FB505 is not the right one: it needs an EFB or an AGM.
  • Cold cranking: 360 A (EN), equal to or higher than the original.
  • With 50 Ah, the FB505 replaces an original battery of that capacity or slightly less.
  • Polarity of the FB505: positive terminal on the left (if yours has it on the other side, the cables will not reach).
  • Measure the space: the FB505 takes up 200 × 173 × 222 mm.

Frequently asked questions about the Fulmen FB505

Fulmen FB505 or FB605?

Compared with the FB505, the Fulmen FB605 has 10 Ah more and 120 A more cranking power. If your current battery says 480 A or more, choose the FB605; if it says 360 A or less, the FB505 is enough. Mind the space: the FB605 measures 230 × 173 × 222 mm.

What is the difference between the Fulmen FB505 and the FB504?

They are the same battery with the terminals swapped: positive terminal on the left on the FB505, positive terminal on the right on the FB504. Look at your current battery with the terminals facing you and pick the one that matches.

Can the Fulmen FB505 be used in a car with Start-Stop?

No. The FB505 is a lead-acid battery for cars without automatic engine stop; Start-Stop needs an EFB or an AGM.

How much does the Fulmen FB505 weigh?

The FB505 weighs 12.9 kg. For reference, the Fulmen FB605 (60 Ah) weighs 14.6 kg.

Which battery is equivalent to the Fulmen FB505?

With the same dimensions, polarity and similar capacity you have the Exide EB505, Tudor TB505 and Deta DB505. As the FB505 is a conventional battery, an EFB or AGM of the same size also works.

Does the new battery need to be registered in the car?

In cars with energy management (common since 2010) it is worth registering the battery in the control unit so it adjusts charging. In older cars you just connect it.

Other options if you are unsure about the FB505

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