# Car battery Fulmen FC542 12V 54Ah 500A ![Car battery Fulmen FC542 12V 54Ah 500A](https://baterias.com/3695-home_default/battery-fulmen-fc542-12v-54ah-500a.jpg) > Fulmen FC542 car battery 12V 54Ah 500A. Standard range. Dimensions 242×175×175 mm, + terminal on the right. Check fitment by plate. **Category:** [Car Batteries](https://baterias.com/gb/car-batteries) → [Fulmen](https://baterias.com/gb/fulmen) - **Canonical URL**: https://baterias.com/gb/battery-fulmen-fc542-12v-54ah-500a - **Language**: en-GB - **Brand**: Fulmen - **Reference**: BCOM-FULMEN-FC542 - **EAN**: 3661024044851 - **MPN**: FC542 - **Last updated**: 2026-10-28 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULMEN | | Reference | FC542 | | Model | FULMEN Standard | | Voltage (V) | 12 V | | Largo | 242 mm | | Ancho | 175 mm | | Alto | 175 mm | | Peso | 12.9 kg | | Tecnología | Lead-acid | | EAN | 3661024044851 | | Terminal layout | Positive terminal on the right | | Terminal type | 1 | | Hold down | B13 | | Cold cranking amps (EN) | 500 A | | Capacity (C20) | 54 Ah (c20) | | Case type | LB2 | ## Quick description **Fulmen FC542 12V 54Ah 500A** is a passenger car battery with factory-guaranteed cranking power and extended service life. OEM quality at white-label prices: calcium-silver grids, low self-discharge and compatible with all modern electrical systems. ## Why this car battery? - **Original-equipment quality** without dealership prices - **Lasts 4 to 6 years** buy once instead of twice - **Real human tech support** if you have any doubts before buying 🔌 Voltage 12 V ⚡ Capacity 54 Ah C20 🔋 Cold cranking 500 A EN-1 📏 Dimensions 242×175×175 mm ⚙️ Technology Lead-acid 🧭 Polarity Positive on the right ⚖️ Weight 12,9 kg 🏷️ Model FULMEN Standard ## Description ## Car battery Fulmen FC542 Standard 54Ah 500A 12V 12*V* Voltage 54*Ah* Capacity 500*A* Cold cranking 12.90*kg* Weight The **Fulmen FC542** from the **Standard** range delivers **54 Ah** and **500 A** of cold cranking current (EN) at **12 V**: the usual specification for passenger cars with conventional starting, without a Start-Stop system. Its 242 × 175 × 175 mm and the positive terminal on the right make it the exact replacement for the 54 Ah battery fitted as standard to many cars. - Stable voltage for the vehicle electronics (ECU, sensors, climate control). - Good balance of capacity, cranking power and price. - Designed to last several years under normal daily use. - Low self-discharge: copes with long stops without losing charge. ### What the Fulmen FC542 is for With 54 Ah, the Fulmen FC542 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 B13 hold-down. ### Size, terminals and hold-down of the Fulmen FC542 It has external dimensions of 242 × 175 × 175 mm 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 B13 hold-down and 1 terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change. ### The Fulmen FC542: Standard range and conventional lead-acid technology Within the Fulmen catalogue, the **Standard** series groups the references designed for this use. The FC542 is the 54 Ah model of that family, with the same performance as its siblings in other sizes. In a conventional battery the electrolyte is liquid and the lead plates are immersed in it. It is a mature, economical and easily recycled technology, ideal for starting vehicles in normal use. ### Why choose Fulmen batteries 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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### Manufacturer's warranty The Fulmen FC542 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. ### How to make it last longer 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. Avoid leaving lights or accessories on with the engine off: most batteries fail not through defects but through repeated deep discharges. ### When you get it and how to return it Order **before 6:00 pm** with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have **14 days** to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email. ## Frequently asked questions ### How is the Fulmen FC542 battery installed in the vehicle? Steps: 1) switch off and remove the key; 2) find the battery (bonnet, boot or under a seat); 3) undo the negative (−), then the positive (+); 4) remove the clamp and the old battery; 5) fit the new one facing the same way (positive on the right) to match the polarity; 6) connect the positive (+) and finally the negative (−). Allow 15-30 minutes and a 10 mm spanner for a LB2 case like this one. If the car keeps its battery in the boot or under a seat, it can take up to twice as long. If the car manufacturer lists any extra step in the handbook, follow it. More detail in how to replace the car battery. ### How long does the Fulmen FC542 battery last? There is no exact figure: for a battery such as the Fulmen FC542 (conventional), a reasonable guide is 4 to 6 years in regular car use without Start-Stop. What weighs most: temperature (cold makes starts harder and intense heat evaporates the electrolyte), frequent short trips, the condition of the alternator and charging system, power draw while parked and maintenance, not forgetting the type of car and Start-Stop. ### What are the dimensions of the Fulmen FC542 battery? Length × width × height: 242x175x175 mm (LB2 case). Height is measured to the top of the terminals. Hold-down: B13. Measure your car's battery tray first; if the battery exceeds it by even a millimetre, the hold-down clamp may not close. ### What polarity does the Fulmen FC542 battery have? It has the positive on the right (polarity). It must match your current battery: reversed polarity means lengthening cables or reconfiguring the system, with a risk of short circuit. Put it in front of you, terminals towards you: the post with the red ring and the + sign is the positive. ### Will the Fulmen FC542 battery fit my car? Three routes: the "Compatible vehicles" tab on this page, with the vehicles verified by our technical team; your number plate in the finder, from which DGT/DVLA/KBA detect model and engine; and WhatsApp, with make, model, engine and year, during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). If our table and the car handbook disagree, go with what the manufacturer says. ### Which batteries are equivalent to the Fulmen FC542? Not just any technology will do: an EFB cannot be replaced with a conventional battery in Start-Stop cars. The "Equivalents" section further down lists the recommended alternatives. A direct equivalent needs what this FC542 offers: 242×175×175 mm, positive on the right, the same Ah and CCA and conventional technology. ### Fulmen FC542 or Tudor TB602: which one to choose? Same case and same fitting as the FC542, from Tudor. Compared with the FC542 it has 6 Ah more and 40 A of cold cranking more. It costs €51.80 more. If you want to save or the FC542 is out of stock, it is the safe alternative: same dimensions, same polarity and official warranty. ### Fulmen FC542 or Varta D59: which one to choose? The Varta alternative that fits where the FC542 goes, with the same polarity. Compared with the FC542 it has 6 Ah more and 40 A of cold cranking more. It costs €64.80 more. A straight swap with nothing to adapt; the difference is the price and the brand you prefer. ## Equivalent batteries - [EXIDE EC542](https://baterias.com/gb/battery-exide-ec542-12v-54ah-500a) - [TUDOR TC542](https://baterias.com/gb/battery-tudor-tc542-12v-54ah-500a) - [TUDOR TA612](https://baterias.com/gb/battery-tudor-ta612-61ah-600a) - [TUDOR TB602](https://baterias.com/gb/battery-tudor-tb602-60ah-540a) - [VARTA D21](https://baterias.com/gb/battery-varta-d21-12v-61ah-600a) - [VARTA D59](https://baterias.com/gb/battery-varta-d59-12v-60ah-540a) - [EXIDE EA612](https://baterias.com/gb/battery-exide-ea612-12v-61ah-600a) - [EXIDE EB602](https://baterias.com/gb/battery-exide-eb602-12v-60ah-540a) ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-11-10*