# Car battery Fulmen FB505 12V 50Ah 360A ![Car battery Fulmen FB505 12V 50Ah 360A](https://baterias.com/3675-home_default/battery-fulmen-fb505-12v-50ah-360a.jpg) > Fulmen FB505 car battery 12V 50Ah 360A. Formula range. Dimensions 200Γ—173Γ—222 mm, + terminal on the left. Check fitment by plate. **Category:** [Car Batteries](https://baterias.com/gb/car-batteries) β†’ [Fulmen](https://baterias.com/gb/fulmen) - **Canonical URL**: https://baterias.com/gb/battery-fulmen-fb505-12v-50ah-360a - **Language**: en-GB - **Brand**: Fulmen - **Reference**: BCOM-FULMEN-FB505 - **EAN**: 3661024044394 - **MPN**: FB505 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULMEN | | Reference | FB505 | | Model | FULMEN Formula | | Voltage (V) | 12 V | | Largo | 200 mm | | Ancho | 173 mm | | Alto | 222 mm | | Peso | 12.9 kg | | TecnologΓ­a | Lead-acid | | EAN | 3661024044394 | | Terminal layout | Positive terminal on the left | | Terminal type | 1 | | Hold down | Korean B1 | | Cold cranking amps (EN) | 360 A | | Capacity (C20) | 50 Ah (c20) | | Case type | D20 | ## Quick description **Fulmen FB505 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 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 πŸ”Œ Voltage 12 V ⚑ Capacity 50 Ah C20 πŸ”‹ Cold cranking 360 A EN-1 πŸ“ Dimensions 200Γ—173Γ—222 mm βš™οΈ Technology Lead-acid 🧭 Polarity Positive on the left βš–οΈ Weight 12,9 kg 🏷️ Model FULMEN Formula ## Description ## Car battery Fulmen FB505 Formula 50Ah 360A 12V 12*V* Voltage 50*Ah* Capacity 360*A* Cold cranking 12.90*kg* Weight With **50 Ah** at **12 V** and **360 A** of cold cranking current (EN), the **Fulmen FB505** from the **Formula** range is a starter battery built for passenger cars with conventional starting, without a Start-Stop system. Measuring 200 Γ— 173 Γ— 222 mm and the positive terminal on the left, it is the direct replacement for cars fitted from the factory with a 50 Ah battery of this format. - Good balance of capacity, cranking power and price. - Stable voltage for the vehicle electronics (ECU, sensors, climate control). - Low self-discharge: copes with long stops without losing charge. - Designed to last several years under normal daily use. ### What the Fulmen FB505 is for Designed for passenger cars with conventional starting, without a Start-Stop system, the Fulmen FB505 is the direct replacement when your vehicle uses a 50 Ah battery of this format. Before buying, compare dimensions, terminals and capacity with the battery you are replacing. 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. ### Will it fit your current battery tray? The Fulmen FB505 is made in the 200 Γ— 173 Γ— 222 mm format and weighs 12.90 kg. The positive terminal on the left 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. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters. ### 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. ### The Fulmen FB505: Formula range and conventional lead-acid technology The **Formula** is the Fulmen range the FB505 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. ### 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. Keep the terminals clean and tight, and check that the resting voltage does not drop below 12.4 V: below that it is time to recharge. ### Official warranty The Fulmen FB505 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. ### Delivery times and returns Orders placed **before [[ks:cutoff]]** with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have **[[ks:return_days]] days** to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships. ## Frequently asked questions ### How is the Fulmen FB505 battery installed in the vehicle? 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 our blog. 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 (βˆ’) 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 β€” with positive on the left match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (βˆ’). On cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### What is the service life of the FB505 model? Expected lifespan of the Fulmen FB505 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 FB505 battery? Dimensions (length Γ— width Γ— height) are 200Γ—173Γ—222 mm β€” also written as 200x173x222 mm β€” 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. ### On which side is the positive of the FB505 model? Polarity: positive on the left. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk. ### Will the Fulmen FB505 battery fit my car? 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 β€” we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The FB505 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### What are the equivalents of the FB505 model? 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 β€” 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. ## Equivalent batteries - [TUDOR TB505](https://baterias.com/gb/battery-tudor-tb505-50ah-360a) - [EXIDE EB505](https://baterias.com/gb/battery-exide-eb505-12v-50ah-360a) ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team β€” automotive battery specialists since 2012. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-20*