# Motorcycle battery Fulbat 6N4-2A 6V 4.2Ah 25A ![Motorcycle battery Fulbat 6N4-2A 6V 4.2Ah 25A](https://baterias.com/6160-home_default/battery-fulbat-6n4-2a-6v-4-2ah-25a.jpg) > Fulbat 6N4-2A motorcycle battery 6V 4.2Ah 25A. Motorcycle DRY range. Dimensions 71×71×96 mm, + terminal on the right. 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-6n4-2a-6v-4-2ah-25a - **Language**: en-GB - **Brand**: FULBAT - **Reference**: BCOM-FULBAT-6N4-2A - **MPN**: 6N4-2A - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULBAT | | Model | FULBAT Motorcycle DRY | | Voltage (V) | 6 V | | Largo | 71 mm | | Ancho | 71 mm | | Alto | 96 mm | | Tecnología | Lead-acid | | Terminal layout | Positive right | | Cold cranking amps (EN) | 25 A | | Capacity (C20) | 4.2 Ah | | Capacity (C10) | 4 Ah (c10) | ## Quick description **Fulbat 6N4-2A 6V 4,2Ah 25A** 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 6 V ⚡ Capacity 4,2 Ah C20 🔋 Cold cranking 25 A EN-1 📏 Dimensions 71×71×96 mm ⚙️ Technology Lead-acid 🧭 Polarity Positive on the right ## Description ## Motorcycle battery Fulbat 6N4-2A 4.2Ah 25A 6V 6*V* Voltage 4.2*Ah* Capacity 25*A* Cold cranking The **Fulbat 6N4-2A** is a motorcycle battery with **4.2 Ah** and **25 A** of cold cranking current (EN), designed for motorcycles, scooters, quads and personal watercraft. It measures 71 × 71 × 96 mm and the positive terminal on the right, the format sought by anyone replacing a 4.2 Ah battery in motorcycles. - Energetic cranking for high-compression engines. - Resistant to the vibration typical of two wheels. - Same JIS code as the original battery: fits first time. - Conventional lead-acid: the most proven and economical technology. ### Size, terminals and hold-down of the Fulbat 6N4-2A In terms of format, the Fulbat 6N4-2A measures 71 × 71 × 96 mm (length × width × height). 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. 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. ### What the Fulbat 6N4-2A is for Designed for motorcycles, scooters, quads and personal watercraft, the Fulbat 6N4-2A replaces the original battery of bikes that use this code or format. Check the position of the positive terminal before ordering. ### Technology inside the Fulbat 6N4-2A The 6N4-2A is one of the Fulbat references for this type of use; it shares the same manufacturing and quality-control criteria as the rest of the brand's catalogue. In a conventional battery the electrolyte is liquid and the lead plates are immersed in it. It is a mature, economical and easily recycled technology, ideal for starting vehicles in normal use. ### Fulbat: the maker behind the 6N4-2A French brand Fulbat is a European reference in motorcycle, garden and leisure batteries: compact ranges, clear JIS codes and a consistent quality that workshops know well. All the Fulbat batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### Warranty and coverage The Fulbat 6N4-2A comes with the **manufacturer's official warranty**. The warranty does not cover discharge through prolonged inactivity: if the bike stands for months, use a trickle charger. ### How to make it last longer Avoid repeated cranking attempts on a cold bike for long: if it does not start on the third try, let the battery rest for a minute. If the bike spends the winter standing, connect a trickle charger: deep discharge through inactivity is the first cause of premature failure. ### When you get it and how to return it Order **before [[ks:cutoff]]** with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have **[[ks:return_days]] days** to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email. ## Frequently asked questions ### How is the Fulbat 6N4-2A 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 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 (−) 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. ### How long does the Fulbat 6N4-2A battery last? Expected lifespan of the Fulbat 6N4-2A 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 6N4-2A battery? Dimensions (length × width × height) are 71×71×96 mm — also written as 71x71x96 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. ### Is the 6N4-2A 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 — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The 6N4-2A typically fits a wide range of European vehicles thanks to its standard DIN case format. ### What are the equivalents of the 6N4-2A 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. ## 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 · 2026-10-22*