# Motorcycle battery Fulbat FTX20-BS 12V 18.9Ah 270A AGM ![Motorcycle battery Fulbat FTX20-BS 12V 18.9Ah 270A AGM](https://baterias.com/6104-home_default/battery-fulbat-ftx20-bs-12v-18-9ah-270a.jpg) > Fulbat FTX20-BS motorcycle battery 12V 18.9Ah 270A AGM. Motorcycle MF range. Dimensions 175×87×155 mm, + terminal on the left. Verified OEM fitment. **Category:** [Motorcycle Batteries](https://baterias.com/gb/motorcycle-batteries) → [FULBAT](https://baterias.com/gb/fulbat) - **Canonical URL**: https://baterias.com/gb/battery-fulbat-ftx20-bs-12v-18-9ah-270a - **Language**: en-GB - **Brand**: FULBAT - **Reference**: BCOM-FULBAT-FTX20-BS - **MPN**: FTX20-BS - **Stock**: Out of stock ## Quick description **Fulbat FTX20-BS 12V 18Ah 270A** is a motorcycle starter battery with standard JIS code (the one on your bike's original label). Ready to use, sealed and vibration-resistant. Fits any model that takes the same JIS reference — the code your mechanic recognises at a glance. ### Why this motorcycle battery? - **Same JIS reference** as your bike's original — fits first time - **Sealed and ready to use** no acid handling, no refills - **Survives winter storage** holds charge through long off-season 🔌 Voltage 12 V ⚡ Capacity 18 Ah C20 🔋 Cold cranking 270 A EN-1 📏 Dimensions 175×87×155 mm ⚙️ Technology AGM 🧭 Polarity Positivo a la izquierda 🏷️ Model FULBAT Motorcycle MF #️⃣ Mfr. reference FTX20-BS ## Description ## Battery FULBAT FTX20-BS 18.90Ah 270A 12V Motorcycle MF ### The brand Fulbat has manufactured in France since 1978 and its ground is motorcycles and light vehicles. Two traits define it: it covers most of the car park with a short, clear range and works only with sealed, non-spillable batteries. In practice, choosing Fulbat for motorcycles and light vehicles means going with a maker that has spent 48 years building this exact kind of battery, to the naming and the dimensions the trade takes as standard. ### The range It belongs to the Motorcycle MF range, aimed at a motorcycle. In build terms, the electrolyte is absorbed in glass mat, sealed and never topped up. ### This model It delivers 18.90Ah with 270A cold cranking in a 175×87×155 mm case, positive terminal on the left. ### Technical data Brand FULBAT Model Motorcycle MF Part no. FTX20-BS Capacity 18.90Ah Voltage 12V Cold cranking (CCA) 270A Technology AGM Dimensions (mm) 175x87x155 Positive terminal Positivo Izquierda ## Frequently asked questions ### How do I know if the FTX20-BS model fits my motorcycle? Three ways: 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 for the FTX20-BS; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 9:00–18:00 CET). ### How is the Fulbat FTX20-BS battery installed in the vehicle? In most motorcycles 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 (−) 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 — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On motorcycles with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### What warranty does the Fulbat FTX20-BS motorcycle battery have? This motorcycle battery includes 6 months of official manufacturer warranty against manufacturing defects. On motorcycles, jet skis and quads, the standard warranty is shorter because long inactive periods accelerate natural sulfation. Practical tip: connect a trickle charger if the bike will be idle for more than 2 weeks — it dramatically extends battery life. ### How long does Fulbat FTX20-BS delivery take? In mainland Spain and Portugal it arrives in 24 h if you order before 17:00 and the battery is in stock — it leaves the same day and arrives the next business day. Afternoon or weekend orders ship the next business day. For Balearics, Canaries and other EU destinations, allow 2-5 days. Shipping cost is calculated in the cart based on destination and service (standard, express, cash on delivery). Tracking number is sent by email + SMS as soon as the parcel ships. ### Can I return the Fulbat FTX20-BS battery if it doesn't fit or doesn't work? Yes. You have 14 days from delivery to return it. In mainland Spain and Portugal returns are FREE — we cover the return shipping cost via prepaid label. In other EU countries the return shipping cost is the customer's. It must arrive in its original packaging with no signs of installation. If it was defective, the warranty covers replacement even after the 14-day period. ### Where can I buy the Fulbat FTX20-BS battery? At baterias.com — authorised distributor with real stock, 24h delivery in mainland Spain and Portugal if you order before 17:00, and full manufacturer warranty. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). Secure payment by card, Bizum, PayPal or bank transfer. If you choose at-home installation, our technician will take the used battery and dispose of it through an authorised collection point. ### How many years does this battery last? Expected lifespan of the Fulbat FTX20-BS is 4 to 7 years in regular use (depends on technology and climate). 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 Fulbat FTX20-BS battery? Dimensions (length × width × height) are 175×87×155 mm — also written as 175x87x155 mm — following the European DIN standard. Always measure the space in your motorcycle before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals. ### Will the Fulbat FTX20-BS battery fit my motorcycle? 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 — we reply during business hours (Mon–Fri 9:00–18:00 CET). The FTX20-BS typically fits a wide range of European vehicles thanks to its standard DIN case format. ### What are the equivalents of the FTX20-BS 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 — an EFB cannot be replaced with a conventional battery in Start-Stop motorcycles. See the "Equivalents" section to view recommended options at the same performance level. ### Which is better: Fulbat FTX20-BS or an alternative from another brand? This battery and its equivalents from Bosch, Tudor or Exide are technically comparable: same dimensions, same voltage and same capacity. The differences are warranty (Varta and Bosch: 2 years; Tudor and Exide: 2 years on the equivalent line), manufacturing plant (Varta and Bosch share origin in the Clarios Group; Tudor and Exide belong to Exide Technologies) and price. For private use any of these brands will give 4-6 years of life. Compare them in the "Equivalents" section. ### What reviews does the FTX20-BS model have? The product rating, when available, is shown on the product page next to the stars. You can also check our public Trustpilot profile at shop level (4.5/5 from 11,777+ verified reviews). Most-praised points: reliable cold start, lifespan above 5 years and fast delivery; most common complaints mention BMS-equipped motorcycles that need OBD registration after fitting. ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-09-26*