# Car battery Fulmen FB705 12V 70Ah 540A ![Car battery Fulmen FB705 12V 70Ah 540A](https://baterias.com/3682-home_default/battery-fulmen-fb705-12v-70ah-540a.jpg) > Fulmen FB705 car battery 12V 70Ah 540A. Formula range. Dimensions 270Γ—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-fb705-12v-70ah-540a - **Language**: en-GB - **Brand**: Fulmen - **Reference**: BCOM-FULMEN-FB705 - **EAN**: 3661024044448 - **MPN**: FB705 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULMEN | | Reference | FB705 | | Model | FULMEN Formula | | Voltage (V) | 12 V | | Largo | 270 mm | | Ancho | 173 mm | | Alto | 222 mm | | Peso | 16.1 kg | | TecnologΓ­a | Lead-acid | | EAN | 3661024044448 | | Terminal layout | Positive terminal on the left | | Hold down | Korean B1+B6 | | Cold cranking amps (EN) | 540 A | | Capacity (C20) | 70 Ah (c20) | | Case type | D26 | ## Quick description **Fulmen FB705 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 left βš–οΈ Weight 16,1 kg 🏷️ Model FULMEN Formula ## Description ## Car battery Fulmen FB705 Formula 70Ah 540A 12V 12*V* Voltage 70*Ah* Capacity 540*A* Cold cranking 16.10*kg* Weight The **Fulmen FB705 car battery** is rated at **12 V**, **70 Ah** and **540 A** of cold cranking current (EN) from the **Formula** range, and is designed for passenger cars with conventional starting, without a Start-Stop system. Its 270 Γ— 173 Γ— 222 mm and the positive terminal on the left make it the exact replacement for the 70 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. ### What the Fulmen FB705 is for With 70 Ah, the Fulmen FB705 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 16.10 kg and Korean B1+B6 hold-down. ### Size, terminals and hold-down of the Fulmen FB705 In terms of format, the Fulmen FB705 measures 270 Γ— 173 Γ— 222 mm (length Γ— width Γ— height) and weighs 16.10 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+B6 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. ### The Fulmen FB705: Formula range and conventional lead-acid technology The FB705 is part of the Fulmen **Formula** range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family. The conventional lead-acid battery remains the most widespread technology thanks to its balance of capacity, cranking current and price. Well maintained and kept charged, it offers years of reliable service in vehicles without Start-Stop. ### 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. ### Warranty and coverage The Fulmen FB705 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 On batteries with filler caps, check the electrolyte level and top up only with distilled water. 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. ### 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 FB705 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. ### How long does the Fulmen FB705 battery last? Expected lifespan of the Fulmen FB705 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. ### What polarity does the Fulmen FB705 battery have? 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 FB705 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 FB705 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### What are the equivalents of the FB705 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 TB705](https://baterias.com/gb/battery-tudor-tb705-70ah-540a) - [EXIDE EB705](https://baterias.com/gb/battery-exide-eb705-12v-70ah-540a) - [TUDOR TA755](https://baterias.com/gb/battery-tudor-ta755-75ah-630a) - [EXIDE EA755](https://baterias.com/gb/battery-exide-ea755-12v-75ah-630a) - [EXIDE ER350](https://baterias.com/gb/battery-exide-er350-12v-80ah-510a) ## 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*