# Car battery Fulmen FB704 12V 70Ah 540A ![Car battery Fulmen FB704 12V 70Ah 540A](https://baterias.com/3681-home_default/battery-fulmen-fb704-12v-70ah-540a.jpg) > Fulmen FB704 car battery 12V 70Ah 540A. Formula range. Dimensions 270Γ—173Γ—222 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-fb704-12v-70ah-540a - **Language**: en-GB - **Brand**: Fulmen - **Reference**: BCOM-FULMEN-FB704 - **EAN**: 3661024044431 - **MPN**: FB704 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULMEN | | Reference | FB704 | | Model | FULMEN Formula | | Voltage (V) | 12 V | | Largo | 270 mm | | Ancho | 173 mm | | Alto | 222 mm | | Peso | 16.1 kg | | TecnologΓ­a | Lead-acid | | EAN | 3661024044431 | | Terminal layout | Positive terminal on the right | | Hold down | Korean B1+B6 | | Cold cranking amps (EN) | 540 A | | Capacity (C20) | 70 Ah (c20) | | Case type | D26 | ## Quick description **Fulmen FB704 12V 70Ah 540A** 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 70 Ah C20 πŸ”‹ Cold cranking 540 A EN-1 πŸ“ Dimensions 270Γ—173Γ—222 mm βš™οΈ Technology Lead-acid 🧭 Polarity Positive on the right βš–οΈ Weight 16,1 kg 🏷️ Model FULMEN Formula ## Description ## Car battery Fulmen FB704 Formula 70Ah 540A 12V 12*V* Voltage 70*Ah* Capacity 540*A* Cold cranking 16.10*kg* Weight The **Fulmen FB704** from the **Formula** range delivers **70 Ah** and **540 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 270 Γ— 173 Γ— 222 mm format: same 70 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. ### What the Fulmen FB704 is for The Fulmen FB704 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 16.10 kg and Korean B1+B6 hold-down. ### The Fulmen FB704: Formula range and conventional lead-acid technology Within the Fulmen catalogue, the **Formula** series groups the references designed for this use. The FB704 is the 70 Ah model of that family, with the same performance as its siblings in other sizes. 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. ### Dimensions, polarity and mounting In terms of format, the Fulmen FB704 measures 270 Γ— 173 Γ— 222 mm (length Γ— width Γ— height) and weighs 16.10 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+B6 hold-down, 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. ### 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. ### How to make it last longer Avoid leaving lights or accessories on with the engine off: most batteries fail not through defects but through repeated deep discharges. 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. ### Warranty and coverage The Fulmen FB704 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. ### Shipping, delivery and returns Orders placed **before 6:00 pm** 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 **14 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 FB704 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 many years does this battery last? Expected lifespan of the Fulmen FB704 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 size is this battery? Dimensions (length Γ— width Γ— height) are 270Γ—173Γ—222 mm β€” also written as 270x173x222 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. ### Which side is the positive terminal on this battery? 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. ### Will the Fulmen FB704 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 FB704 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which interchangeable batteries are there for this one? 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 TB704](https://baterias.com/gb/battery-tudor-tb704-70ah-540a) - [EXIDE EB704](https://baterias.com/gb/battery-exide-eb704-12v-70ah-540a) - [TUDOR TA754](https://baterias.com/gb/battery-tudor-ta754-12v-75ah-630a) - [EXIDE EA754](https://baterias.com/gb/battery-exide-ea754-12v-75ah-630a) ## 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· 2026-10-25*