# Start-Stop battery Fulmen FK1050 12V 105Ah 950A AGM ![Start-Stop battery Fulmen FK1050 12V 105Ah 950A AGM](https://baterias.com/3745-home_default/battery-fulmen-fk1050-12v-105ah-950a.jpg) > Fulmen FK1050 Start-Stop battery 12V 105Ah 950A AGM. Dimensions 392Γ—175Γ—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) β†’ [Fulmen](https://baterias.com/gb/fulmen) - **Canonical URL**: https://baterias.com/gb/battery-fulmen-fk1050-12v-105ah-950a - **Language**: en-GB - **Brand**: Fulmen - **Reference**: BCOM-FULMEN-FK1050 - **EAN**: 3661024046299 - **MPN**: FK1050 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULMEN | | Reference | FK1050 | | Model | FULMEN AGM | | Voltage (V) | 12 V | | Largo | 392 mm | | Ancho | 175 mm | | Alto | 190 mm | | Peso | 29 kg | | TecnologΓ­a | AGM | | EAN | 3661024046299 | | Terminal layout | Positive terminal on the right | | Terminal type | 1 | | Hold down | B13 | | Cold cranking amps (EN) | 950 A | | Capacity (C20) | 105 Ah (c20) | | Case type | L06 | ## Quick description **Fulmen FK1050 12V 105Ah 950A** 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 πŸ”Œ Voltage 12 V ⚑ Capacity 105 Ah C20 πŸ”‹ Cold cranking 950 A EN-1 πŸ“ Dimensions 392Γ—175Γ—190 mm βš™οΈ Technology AGM 🧭 Polarity Positive on the right βš–οΈ Weight 29 kg 🏷️ Model FULMEN AGM ## Description ## Start-Stop battery Fulmen FK1050 105Ah 950A 12V 12*V* Voltage 105*Ah* Capacity 950*A* Cold cranking 29*kg* Weight The **Fulmen FK1050 Start-Stop battery** offers **12 V**, **105 Ah** and **950 A** of cold cranking current (EN) with AGM technology, and is built for cars with Start-Stop, regenerative braking and heavy electrical loads. It replaces the original battery without adaptation in Start-Stop cars with a 392 Γ— 175 Γ— 190 mm format: same 105 Ah capacity and the positive terminal on the right. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. - Withstands hundreds of starts a day without degrading. - Compatible with regenerative braking and energy management (BMS). - Up to three times the cycles of a conventional battery. ### What the Fulmen FK1050 is for The Fulmen FK1050 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 29 kg, 1 terminals and B13 hold-down. ### Technology inside the Fulmen FK1050 The FK1050 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. ### Dimensions, polarity and mounting It has external dimensions of 392 Γ— 175 Γ— 190 mm and weighs 29 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. 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. ### Why choose Fulmen batteries 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. ### How to make it last longer Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Do not mix technologies: a conventional battery in a Start-Stop car degrades within months. ### Warranty and coverage The Fulmen FK1050 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. ### Shipping, delivery and returns Same-day dispatch from our warehouse for in-stock orders placed **before [[ks:cutoff]]**: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for **[[ks:return_days]] days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email. ## Frequently asked questions ### Is the FK1050 model AGM? What does this technology offer? Yes. The FK1050 from Fulmen uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for cars with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions. ### Is the Fulmen FK1050 battery suitable for Start-Stop? Yes. As AGM technology it is designed for Start-Stop vehicles. AGM batteries support advanced Start-Stop and regenerative braking thanks to their higher cycle count. EFB is recommended for basic Start-Stop; AGM is recommended when regenerative braking is also present, thanks to its higher cycle capability. It works straight out of the box β€” on most modern vehicles registering the battery via OBD is recommended so the alternator automatically applies the optimal charging profile. ### How is the Fulmen FK1050 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. ### How long does the Fulmen FK1050 battery last? Expected lifespan of the Fulmen FK1050 is 5 to 8 years in mild-climate car use with 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 dimensions of the Fulmen FK1050 battery? Dimensions (length Γ— width Γ— height) are 392Γ—175Γ—190 mm β€” also written as 392x175x190 mm and correspond to the European L6 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. ### Is the FK1050 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 FK1050 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which batteries are equivalent to the Fulmen FK1050? 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. ### What advantages does the Fulmen FK1050 AGM battery offer over an EFB? AGM (Absorbent Glass Mat) technology uses absorbent fibreglass that retains the electrolyte, eliminating leaks and allowing up to 3Γ— more charge/discharge cycles than a conventional battery. It is the recommended option when the car has advanced Start-Stop with regenerative braking (BMW EfficientDynamics, Mercedes Eco, Audi MHEV, Land Rover ECO, Volvo i-Stop). Withstands tilted positions, high vibration and extreme temperatures better than EFB. The Fulmen FK1050 is fully original and meets European EN 50342-6 standards for advanced Start-Stop. ### Is there anything to do after replacing a Start-Stop battery? On most cars it is not strictly necessary β€” the alternator detects the new battery and adapts the charge automatically. It is recommended to register the battery via OBD so that the alternator applies the optimal charging profile from the first minute and extends the battery life as much as possible (especially on brands with sophisticated BMS: BMW, Mercedes, Audi, Volvo, Land Rover). Any workshop with an OBD scanner (~10-15 € labour) does it in 5 minutes. DIY apps: VCDS / Carista (VAG), Bimmercode (BMW), iCarsoft. If you do not register, the car will still start correctly β€” the alternator just takes a few days to adjust the profile. The Fulmen FK1050 ships factory-charged at 80-90% so you can use it straight after fitting. ## Equivalent batteries - [VARTA LA105](https://baterias.com/gb/battery-varta-la105agm-12v-105ah-950a) - [VARTA H15](https://baterias.com/gb/battery-varta-h15-agm-12v-105ah-950a) - [TUDOR TK1050](https://baterias.com/gb/battery-tudor-tk1050-105ah-950a) - [EXIDE EK1050](https://baterias.com/gb/battery-exide-ek1050-12v-105ah-950a) - [VARTA A4](https://baterias.com/gb/battery-varta-a4-agm-12v-105ah-950a) - [KRONOBAT EV-105-AGM](https://baterias.com/gb/best-price-battery-12v-105ah-agm-ev-105-agm) ## 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 2015. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-12*