# Car battery Fulmen FA456 12V 45Ah 390A ![Car battery Fulmen FA456 12V 45Ah 390A](https://baterias.com/3645-home_default/battery-fulmen-fa456-12v-45ah-390a.jpg) > Fulmen FA456 car battery 12V 45Ah 390A. Formula Xtreme range. Dimensions 237Γ—127Γ—227 mm, + terminal on the right. 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-fa456-12v-45ah-390a - **Language**: en-GB - **Brand**: Fulmen - **Reference**: BCOM-FULMEN-FA456 - **EAN**: 3661024044127 - **MPN**: FA456 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULMEN | | Reference | FA456 | | Model | FULMEN Formula Xtreme | | Voltage (V) | 12 V | | Largo | 237 mm | | Ancho | 127 mm | | Alto | 227 mm | | Peso | 11.8 kg | | TecnologΓ­a | Lead-acid | | EAN | 3661024044127 | | Terminal layout | Positive terminal on the right | | Hold down | B01 | | Cold cranking amps (EN) | 390 A | | Capacity (C20) | 45 Ah (c20) | | Case type | B24 | ## Quick description **Fulmen FA456 12V 45Ah 390A** is a ready-to-use passenger car battery, sealed and maintenance-free. Delivers the cranking amps the engine needs in cold weather and keeps stable voltage for modern car loads (ECU, sensors, 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 45 Ah C20 πŸ”‹ Cold cranking 390 A EN-1 πŸ“ Dimensions 237Γ—127Γ—227 mm βš™οΈ Technology Lead-acid 🧭 Polarity Positive on the right βš–οΈ Weight 11,8 kg 🏷️ Model FULMEN Formula Xtreme ## Description ## Car battery Fulmen FA456 Formula Xtreme 45Ah 390A 12V 12*V* Voltage 45*Ah* Capacity 390*A* Cold cranking 11.80*kg* Weight With **45 Ah** at **12 V** and **390 A** of cold cranking current (EN), the **Fulmen FA456** from the **Formula Xtreme** range is a starter battery built for passenger cars with conventional starting, without a Start-Stop system. Its 237 Γ— 127 Γ— 227 mm and the positive terminal on the right make it the exact replacement for the 45 Ah battery fitted as standard to many cars. - Designed to last several years under normal daily use. - Low self-discharge: copes with long stops without losing charge. - Stable voltage for the vehicle electronics (ECU, sensors, climate control). - Good balance of capacity, cranking power and price. ### Dimensions, polarity and mounting It has external dimensions of 237 Γ— 127 Γ— 227 mm and weighs 11.80 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 B01 hold-down, 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. ### What the Fulmen FA456 is for The Fulmen FA456 covers the needs of passenger cars with conventional starting, without a Start-Stop system: reliable starting, stable voltage for the electronics and a service life of several years in daily use. Check that it matches your current battery in size and terminal position. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 11.80 kg and B01 hold-down. ### The Fulmen FA456: Formula Xtreme range and conventional lead-acid technology Within the Fulmen catalogue, the **Formula Xtreme** series groups the references designed for this use. The FA456 is the 45 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. ### What Fulmen does differently Fulmen is the historic French brand of the Exide group: batteries made on the same lines and with the same technology as original equipment, widely used by workshops across Europe. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### Official warranty The Fulmen FA456 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 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. 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 [[ks:cutoff]]** 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 **[[ks:return_days]] 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 FA456 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 right 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. ### How long does the Fulmen FA456 battery last? Expected lifespan of the Fulmen FA456 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 measurements of the FA456 model? Dimensions (length Γ— width Γ— height) are 237Γ—127Γ—227 mm β€” also written as 237x127x227 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 FA456 model? Polarity: positive on the right. 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. ### Is the FA456 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 β€” we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The FA456 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which batteries are equivalent to the Fulmen FA456? 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 TA456](https://baterias.com/gb/battery-tudor-ta456-12v-45ah-390a) - [EXIDE EA456](https://baterias.com/gb/battery-exide-ea456-12v-45ah-390a) ## 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*