# Car battery Fulmen FB852 12V 85Ah 760A ![Car battery Fulmen FB852 12V 85Ah 760A](https://baterias.com/3688-home_default/battery-fulmen-fb852-12v-85ah-760a.jpg) > Fulmen FB852 car battery 12V 85Ah 760A. Formula range. Dimensions 353Γ—175Γ—175 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-fb852-12v-85ah-760a - **Language**: en-GB - **Brand**: Fulmen - **Reference**: BCOM-FULMEN-FB852 - **EAN**: 3661024044660 - **MPN**: FB852 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULMEN | | Reference | FB852 | | Model | FULMEN Formula | | Voltage (V) | 12 V | | Largo | 353 mm | | Ancho | 175 mm | | Alto | 175 mm | | Peso | 19.4 kg | | TecnologΓ­a | Lead-acid | | EAN | 3661024044660 | | Terminal layout | Positive terminal on the right | | Terminal type | 1 | | Hold down | B13 | | Cold cranking amps (EN) | 760 A | | Capacity (C20) | 85 Ah (c20) | | Case type | LB5 | ## Quick description **Fulmen FB852 12V 85Ah 760A** 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 85 Ah C20 πŸ”‹ Cold cranking 760 A EN-1 πŸ“ Dimensions 353Γ—175Γ—175 mm βš™οΈ Technology Lead-acid 🧭 Polarity Positive on the right βš–οΈ Weight 19,4 kg 🏷️ Model FULMEN Formula ## Description ## Car battery Fulmen FB852 Formula 85Ah 760A 12V 12*V* Voltage 85*Ah* Capacity 760*A* Cold cranking 19.40*kg* Weight The **Fulmen FB852** from the **Formula** range delivers **85 Ah** and **760 A** of cold cranking current (EN) at **12 V**: the usual specification for passenger cars with conventional starting, without a Start-Stop system. It measures 353 Γ— 175 Γ— 175 mm and the positive terminal on the right, the format sought by anyone replacing a 85 Ah battery in cars. - Original-equipment build quality without the dealership price. - Direct replacement for the original battery in size and terminals. - Reliable cold starts, even after weeks without driving. - Conventional lead-acid: the most proven and economical technology. ### What the Fulmen FB852 is for With 85 Ah, the Fulmen FB852 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 19.40 kg, 1 terminals and B13 hold-down. ### Will it fit your current battery tray? In terms of format, the Fulmen FB852 measures 353 Γ— 175 Γ— 175 mm (length Γ— width Γ— height) and weighs 19.40 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. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### The Fulmen FB852: Formula range and conventional lead-acid technology Within the Fulmen catalogue, the **Formula** series groups the references designed for this use. The FB852 is the 85 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. ### Warranty and coverage The Fulmen FB852 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. ### Care and maintenance 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 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 and Canary 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 FB852 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 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 (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€” 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 FB852 model? Expected lifespan of the Fulmen FB852 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 FB852 model? Dimensions (length Γ— width Γ— height) are 353Γ—175Γ—175 mm β€” also written as 353x175x175 mm and correspond to the European LB5 case size 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. ### Will the Fulmen FB852 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 FB852 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### What are the equivalents of the FB852 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 TB852](https://baterias.com/gb/battery-tudor-tb852-85ah-760a) - [EXIDE EB852](https://baterias.com/gb/battery-exide-eb852-12v-85ah-760a) - [VARTA F5](https://baterias.com/gb/battery-varta-f5-12v-88ah-740a) - [KRONOBAT SD-88.0B](https://baterias.com/gb/best-price-battery-12v-88ah-sd-88_0b) ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team β€” over 25 years of experience validating automotive batteries. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-03*