Fulmen FB504 · Car battery 12V 50Ah 360A
Specifications
| Brand | Fulmen |
|---|---|
| Part number | FB504 |
| Voltage (V) | 12 |
| Capacity (C20) | 50Ah (c20) |
| Cold cranking amps (EN) | 360A |
| Technology | Lead-acid |
| Length | 200 mm |
| Width | 173 mm |
| Height | 222 mm |
This product is priced on demand to offer you the best available price at all times.
Please contact us to request a quote and we will inform you about availability and the best price on the entire website, as well as the delivery time.
Thank you
Fulmen FB504 12V 50Ah 360A is a starter battery with OEM-equivalent quality, designed for modern passenger cars. Delivers reliable cold-cranks even after weeks of inactivity and supports stable auxiliary loads (lights, climate control, infotainment).
Why this car battery?
- Original-equipment qualitywithout dealership prices
- Lasts 4 to 6 yearsbuy once instead of twice
- Real human tech supportif you have any doubts before buying
Voltage
12 V
Capacity
50 Ah
Cold cranking
360 A
Dimensions
200×173×222 mm
Technology
Lead-acid
Polarity
Positive on the right
Weight
12,9 kg
Model
FULMEN Formula
Free quote, no obligation
Request a quote for your Car battery Fulmen FB504 12V 50Ah 360A
- Reply in under 24 working hours
- Best price guaranteed
Car battery Fulmen FB504 Formula 50Ah 360A 12V
12VVoltage
50AhCapacity
360ACold cranking
12.90kgWeight
The Fulmen FB504 from the Formula range delivers 50 Ah and 360 A of cold cranking current (EN) at 12 V: the usual specification for passenger cars with conventional starting, without a Start-Stop system. It replaces the original battery without adaptation in cars with a 200 × 173 × 222 mm format: same 50 Ah capacity and the positive terminal on the right.
- Conventional lead-acid: the most proven and economical technology.
- Reliable cold starts, even after weeks without driving.
- Direct replacement for the original battery in size and terminals.
- Original-equipment build quality without the dealership price.
Dimensions, polarity and mounting
The Fulmen FB504 is made in the 200 × 173 × 222 mm format and weighs 12.90 kg. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses a Korean B1 hold-down and 1 terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
What the Fulmen FB504 is for
With 50 Ah, the Fulmen FB504 is sized for passenger cars with conventional starting, without a Start-Stop system. It is a direct replacement for the original battery as long as dimensions and terminals match. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 12.90 kg, 1 terminals and Korean B1 hold-down.
The Fulmen FB504: Formula range and conventional lead-acid technology
The Formula is the Fulmen range the FB504 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
Conventional lead-acid is the benchmark against which other technologies are compared: good cranking current, great tolerance to alternator charging and the best price per amp-hour.
What Fulmen does differently
With more than a century of history, Fulmen offers complete ranges for cars, trucks, motorcycles and leisure with the industrial quality of the Exide group. All the Fulmen batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Warranty and coverage
The Fulmen FB504 comes with the manufacturer's official warranty against manufacturing defects; the exact period is stated in the brand's conditions. If it fails through a defect within the period, we replace it free of charge.
Usage and maintenance tips
Avoid leaving lights or accessories on with the engine off: most batteries fail not through defects but through repeated deep discharges. In normal daily use the alternator keeps the battery charged; if the car stands for weeks, a maintenance charge once a month prevents deep discharge.
Delivery times and returns
Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.
BCOM-FULMEN-FB504
Data sheet
- Brand
- FULMEN
- Reference
- FB504
- Model
- FULMEN Formula
- Voltage (V)
- 12
- Length
- 200 mm
- Width
- 173 mm
- Height
- 222 mm
- Weight
- 12.90 Kgs
- Technology
- Lead-acid
- EAN
- 3661024044400
- Terminal layout
- Positive terminal on the right
- Terminal type
- 1
- Hold-down
- Korean B1
- Cold cranking amps (EN)
- 360A
- Capacity (C20)
- 50Ah (c20)
- Case type
- D20
Specific References
- EAN13
- 3661024044400
- MPN
- FB504
Codes and references Fulmen FB504
| Brand | Fulmen |
|---|---|
| Manufacturer range | FULMEN Formula |
| Manufacturer part number (MPN) | FB504 |
| EAN-13 barcode | 3661024044400 |
| Dimensions (length × width × height) | 200 × 173 × 222 mm (200x173x222) |
Comparison: Fulmen FB504 vs equivalents
The Fulmen FB504 is interchangeable with these equivalent references: TB504 (Tudor), EB504 (Exide).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Fulmen
FB504
This battery
|
12V 50Ah 360A | Lead-acid | |
Tudor
TB504
|
12V 50Ah 360A | Lead-acid | €103.70 |
Exide
EB504
|
12V 50Ah 360A | Lead-acid | €97.10 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
How to change the battery
Step-by-step guide to replace your car battery in 15-30 minutes (longer if the battery is under the seat or in the boot) without losing vehicle settings.
Step 1. Prepare the vehicle
Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.
Step 2. Locate the battery
Open the bonnet. The battery is usually in the engine bay, but in many modern cars it may be in the boot or under the passenger seat. Check the manual if you cannot find it.
Step 3. Disconnect the negative (−) terminal
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery
Loosen the bottom hold-down clamp with the same wrench. Lift the battery carefully (it can weigh 15-25 kg). Clean the tray with a brush and baking soda if there is corrosion.
Step 6. Install the new battery
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Step 7. Connect the cables
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Step 8. Verify the engine starts
Close the bonnet. Start the engine to confirm everything works. On cars with Start-Stop or a BMS, you may need to register the battery via OBD so the alternator applies the correct charging profile.
Frequently asked questions
How do I fit the FB504 model in my car?
In most cars it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How long does the Fulmen FB504 battery last?
Expected lifespan of the Fulmen FB504 is 4 to 6 years in regular car use without Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.
What are the dimensions of the Fulmen FB504 battery?
Dimensions (length × width × height) are 200×173×222 mm — also written as 200x173x222 mm — following the European DIN standard. Always measure the space in your car before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
Is the FB504 valid for my vehicle?
Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The FB504 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Fulmen FB504?
Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop cars. See the "Equivalents" section to view recommended options at the same performance level.
The top-rated online battery store in Spain
-
Audited by Trustpilot, no filters, no edits. The top-rated battery store in Spain.
Trustpilot · verified, no filters
-
Official Varta distributor
Official Varta wholesale distributor. 100% genuine batteries, recently manufactured, best price and no middlemen.
World’s best-selling battery brand
-
+100,000 satisfied customers
More than 100,000 customers already trust baterias.com — and recommend us to their friends and family.
They trust us and recommend us
Choose trust, choose quality, choose baterias.com.