# Start-Stop battery Fulmen FK600 12V 60Ah 680A AGM ![Start-Stop battery Fulmen FK600 12V 60Ah 680A AGM](https://baterias.com/3752-home_default/battery-fulmen-fk600-12v-60ah-680a.jpg) > Fulmen FK600 Start-Stop battery 12V 60Ah 680A AGM. Dimensions 242×175×190 mm, + terminal on the right. For Start-Stop vehicles. **Category:** [Car batteries equipped with start stop system](https://baterias.com/gb/car-batteries-equipped-with-start-stop-system) → [Fulmen](https://baterias.com/gb/fulmen) - **Canonical URL**: https://baterias.com/gb/battery-fulmen-fk600-12v-60ah-680a - **Language**: en-GB - **Brand**: Fulmen - **Reference**: BCOM-FULMEN-FK600 - **EAN**: 3661024046282 - **MPN**: FK600 - **Last updated**: 2026-10-28 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULMEN | | Reference | FK600 | | Model | FULMEN AGM | | Voltage (V) | 12 V | | Largo | 242 mm | | Ancho | 175 mm | | Alto | 190 mm | | Peso | 17.9 kg | | Tecnología | AGM | | EAN | 3661024046282 | | Terminal layout | Positive terminal on the right | | Hold down | B13 | | Cold cranking amps (EN) | 680 A | | Capacity (C20) | 60 Ah (c20) | | Case type | L02 | ## Quick description **Fulmen FK600 12V 60Ah 680A** is a dedicated Start-Stop battery with AGM/EFB technology. Withstands intensive cycling at traffic-light stops (hundreds of cranks per day), recharges quickly while driving and keeps comfort loads alive during long idle periods. ## Why this Start-Stop battery? - **Designed for Start-Stop** built for the intensive cycling of modern cars - **2 to 3 times longer life** vs fitting a cheap conventional battery - **Fast recovery** recharges in minutes once the engine is running 🔌 Voltage 12 V ⚡ Capacity 60 Ah C20 🔋 Cold cranking 680 A EN-1 📏 Dimensions 242×175×190 mm ⚙️ Technology AGM 🧭 Polarity Positive on the right ⚖️ Weight 17,9 kg 🏷️ Model FULMEN AGM ## Description ## Start-Stop battery Fulmen FK600 60Ah 680A 12V 12*V* Voltage 60*Ah* Capacity 680*A* Cold cranking 17.90*kg* Weight Designed for cars with Start-Stop, regenerative braking and heavy electrical loads, the **Fulmen FK600** combines **60 Ah** and **680 A** of cold cranking current (EN) with AGM construction able to withstand hundreds of starts a day. Measuring 242 × 175 × 190 mm and the positive terminal on the right, it is the direct replacement for Start-Stop cars fitted from the factory with a 60 Ah battery of this format. - Keeps comfort loads running with the engine off at the lights. - Direct replacement for the original Start-Stop battery. - AGM: faster recharging and better cycle resistance than a conventional battery. - Fast recharge on the move thanks to low internal resistance. ### Will it fit your current battery tray? In terms of format, the Fulmen FK600 measures 242 × 175 × 190 mm (length × width × height) and weighs 17.90 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, 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. ### What the Fulmen FK600 is for The Fulmen FK600 is designed for cars with Start-Stop, regenerative braking and heavy electrical loads. If your car was fitted with an AGM or EFB battery, always replace it with the same technology: a conventional model would degrade within months. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 17.90 kg and B13 hold-down. ### Technology inside the Fulmen FK600 The FK600 is one of the Fulmen references for this type of use; it shares the same manufacturing and quality-control criteria as the rest of the brand's catalogue. In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery. ### 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. We guarantee that every Fulmen arrives new, charged and with the manufacturer's full warranty. ### Warranty and coverage The Fulmen FK600 comes with the **manufacturer's official warranty**. To keep it valid, always fit the same technology as the original battery (AGM or EFB) and register the replacement if your vehicle requires it. ### Care and maintenance Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. If the vehicle only does very short trips, a periodic maintenance charge with an AGM/EFB-compatible charger greatly extends its life. ### 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 ### Is the FK600 model AGM? What does this technology offer? Yes: the FK600 from Fulmen uses AGM (Absorbent Glass Mat) technology, a sealed lead-acid battery whose electrolyte soaks a glass-fibre mat. It is the technology required by cars with advanced Start-Stop and regenerative braking. It withstands more cycles than a conventional battery and copes better with heat. ### Is the Fulmen FK600 battery suitable for Start-Stop? AGM batteries support advanced Start-Stop and regenerative braking thanks to their higher cycle count. The Fulmen FK600 is AGM, so yes, it is designed for Start-Stop cars. It needs nothing to work, though on most modern cars registering it via OBD is advisable so the alternator adjusts its charging profile. The general recommendation is EFB for basic Start-Stop and AGM where there is regenerative braking (it handles more cycles), unless the car manufacturer says otherwise. ### How is the Fulmen FK600 battery fitted in a Start-Stop car? Our blog guide covers it in detail; if the owner's handbook describes a different procedure, follow the manufacturer. On most cars it is a 15-30 minute job needing only a 10 mm spanner (up to twice as long when the battery is under a seat or in the boot). The right order: engine off and key out; disconnect the negative (−) first, then the positive (+); release the hold-down clamp, lift out the old battery and seat the new one in the same position (positive on the right), keeping the polarity; reconnect the positive (+) first and the negative (−) last. On cars with Start-Stop or BMS, registering the battery via OBD makes the alternator charge with the correct profile. Mind the IBS sensor on the negative terminal too: loosen the cable nut, not the sensor. And the replacement must be the same technology (AGM or EFB) or higher: a conventional battery fails within months. ### How many years does this battery last? As a rough estimate, the Fulmen FK600 typically lasts 5 to 8 years in mild-climate car use with Start-Stop; it is a guide figure, not a guaranteed period. It can vary considerably with usage (short or long journeys), temperature, the condition of the alternator and charging system, power drawn with the engine off and maintenance, plus the car itself and Start-Stop. Cold demands more at every start and intense heat evaporates the electrolyte. ### What are the dimensions of the Fulmen FK600 battery? Measure the battery tray before ordering: a one-millimetre difference is enough for the hold-down clamp not to close. It measures 242×175×190 mm in length × width × height, with the terminals included in the height; that is the European L2 case size. ### Which side is the positive terminal on this battery? Polarity of the Fulmen FK600: positive on the right. It must match your current battery: reversed polarity means lengthening cables or reconfiguring the system, with a risk of short circuit. Seen from the front, terminals towards you, the positive (+) is the post with the red ring. ### Is the FK600 valid for my vehicle? Not sure? Try your number plate in the finder (DGT/DVLA/KBA detect model and engine) or the "Compatible vehicles" tab, checked by our technical team; if your car is not there, send us make, model, engine and year on WhatsApp and we will reply during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). In every case, the car manufacturer's specifications (owner's handbook) take precedence. ### What are the equivalents of the FK600 model? Interchangeable means the same dimensions, same polarity, same Ah and same CCA; for the FK600, 60 Ah (680 A cranking). The "Equivalents" section of this page gathers the recommended options with equivalent performance; remember that in Start-Stop cars an EFB should not be replaced with a conventional battery. ### Fulmen FK600 or Varta A8: which one to choose? It is the verified Varta equivalent for the FK600 tray. Compared with the FK600 it has the same Ah and cranking power. It costs €107.40 more. Decide by price, brand preference and availability: both fit and crank the same. ### Fulmen FK600 or Exide EK600: which one to choose? The Exide alternative that fits where the FK600 goes, with the same polarity. Compared with the FK600 it has 2 Ah more. It costs €93.30 more. A straight swap with nothing to adapt; the difference is the price and the brand you prefer. ### What advantages does the Fulmen FK600 AGM battery offer over an EFB? The Fulmen FK600 has a capacity of 60 Ah. AGM means Absorbent Glass Mat: the electrolyte soaks a glass-fibre mat (no spills), and an AGM battery lasts many more cycles than a conventional one. For regenerative braking systems such as BMW EfficientDynamics, Mercedes Eco, Audi MHEV, Land Rover ECO or Volvo i-Stop, AGM is the recommendation; it also copes better than an EFB with tilting, vibration and extreme temperatures. ### Do I need to register the Fulmen FK600 on the car after installation? Advisable, yes; essential, on most cars, no. Registering it via OBD makes the alternator charge with the optimum profile from the first minute and extends battery life, which matters most on brands with sophisticated BMS such as BMW, Mercedes, Audi, Volvo or Land Rover. Without registration there is no starting problem: the alternator adjusts the profile within a few days. A workshop only needs an OBD scanner and a few minutes. DIY apps: VCDS / Carista (VAG), Bimmercode (BMW), iCarsoft. ## Equivalent batteries - [VARTA D52](https://baterias.com/gb/battery-varta-d52-agm-12v-60ah-680a) - [TUDOR TK600](https://baterias.com/gb/battery-tudor-tk600-60ah-680a) - [VARTA LA60](https://baterias.com/gb/battery-varta-la60-12v-60ah-680a) - [EXIDE EK600](https://baterias.com/gb/battery-exide-ek600-12v-60ah-680a) - [EXIDE EP500](https://baterias.com/gb/battery-exide-ep500-12v-60ah-680a) - [VARTA A8](https://baterias.com/gb/battery-varta-a8-agm-12v-60ah-680a) ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-11-08*