# Motorcycle battery Motobatt MB18U Quadflex 12V 22.5Ah 280A AGM ![Motorcycle battery Motobatt MB18U Quadflex 12V 22.5Ah 280A AGM](https://baterias.com/903-home_default/battery-motobatt-mb18u-225ah.jpg) > Motobatt MB18U motorcycle battery 12V 22.5Ah 280A AGM. QUADFLEX range. Dimensions 180×90×162 mm. Verified OEM cross-references and exact fit for your bike. **Category:** [Motorcycle Batteries](https://baterias.com/gb/motorcycle-batteries) → [MOTOBATT](https://baterias.com/gb/motobatt) - **Canonical URL**: https://baterias.com/gb/battery-motobatt-mb18u-225ah - **Language**: en-GB - **Brand**: MOTOBATT - **Reference**: BCOM-MOTOBATT-MB18U - **MPN**: MB18U - **Price**: 369,70 € (VAT incl., Spain) - **Last updated**: 2026-10-28 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | MOTOBATT | | Reference | MB18 U | | Model | MOTOBATT QUADFLEX | | Voltage (V) | 12 V | | Largo | 180 mm | | Ancho | 90 mm | | Alto | 162 mm | | Peso | 6.8 kg | | Tecnología | Quadflex | | Cold cranking amps (EN) | 280 A | | Capacity (C20) | 22.5 | | Capacity (C10) | 22 5 Ah (c10) | ## Quick description **Motobatt MB18U 12V 22Ah 280A** is a sealed motorcycle battery ready to fit, with the JIS reference your mechanic recognises at a glance. Vibration-resistant, keeps voltage during the winter off-season and cranks first time when you take it out for a ride. ## 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 22 Ah C10 🔋 Cold cranking 280 A EN-1 📏 Dimensions 180×90×162 mm ⚙️ Technology AGM Quadflex ⚖️ Weight 6,8 kg 🏷️ Model MOTOBATT QUADFLEX #️⃣ Mfr. reference MB18U ## Description ## Motorcycle battery Motobatt MB18U Quadflex 22.5Ah 280A 12V 12*V* Voltage 22.5*Ah* Capacity 280*A* Cold cranking 6.80*kg* Weight The **Motobatt MB18U motorcycle battery** is rated at **12 V**, **22.5 Ah** and **280 A** of cold cranking current (EN) from the **Quadflex** range, and is designed for motorcycles, scooters, quads and personal watercraft. It measures 180 × 90 × 162 mm, the format sought by anyone replacing a 22.5 Ah battery in motorcycles. - Same JIS code as the original battery: fits first time. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. - Energetic cranking for high-compression engines. - Resistant to the vibration typical of two wheels. ### What the Motobatt MB18U is for The Motobatt MB18U is a common replacement in motorcycles, scooters, quads and personal watercraft. If your bike spends the winter standing, a trickle charger stops it reaching spring flat. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 6.80 kg. ### The Motobatt MB18U: Quadflex range and AGM technology Within the Motobatt catalogue, the **Quadflex** series groups the references designed for this use. The MB18U is the 22.5 Ah model of that family, with the same performance as its siblings in other sizes. 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. ### Will it fit your current battery tray? It has external dimensions of 180 × 90 × 162 mm and weighs 6.80 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### What Motobatt does differently Motobatt batteries stand out for capacity and cranking current above the original battery in the same tray, thanks to a compact AGM design and the four-terminal Quadflex system. We guarantee that every Motobatt arrives new, charged and with the manufacturer's full warranty. ### How to make it last longer If the bike spends the winter standing, connect a trickle charger: deep discharge through inactivity is the first cause of premature failure. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. ### Warranty and coverage The Motobatt MB18U 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. ### When you get it and how to return it 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 ### How should this motorcycle battery be charged? With a 12 V motorcycle charger delivering at most 10 % of its capacity: 2.3 A for its 22.5 Ah. High-current car chargers can damage it. If the bike is laid up for the winter, keep it on a maintenance charger. ### How long does the Motobatt MB18U battery last? As a guide, you can expect the Motobatt MB18U to last 3 to 5 years, keeping it charged when the bike is not in use, although the real figure may be higher or lower. What weighs most: temperature (cold makes starts harder and intense heat evaporates the electrolyte), frequent short trips, the condition of the alternator and charging system, power draw while parked and maintenance. ### What are the dimensions of the Motobatt MB18U battery? Its dimensions are 180×90×162 mm, also written 180x90x162 mm; the height already includes the terminals. Check the room available in your motorcycle, because a single millimetre too much can stop the clamp from closing. ### Is the MB18U valid for my vehicle? Three routes: the "Compatible vehicles" tab on this page, with the vehicles verified by our technical team; your number plate in the finder, from which DGT/DVLA/KBA detect model and engine; and WhatsApp, with make, model, engine and year, during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). Always cross-check with what the motorcycle manufacturer states in the owner's handbook. The MB18U typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which batteries are equivalent to the Motobatt MB18U? The "Equivalents" section of this page gathers the recommended options with equivalent performance. A direct equivalent needs what this MB18U offers: 180×90×162 mm, the same Ah and CCA. ## 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 · 2026-11-09*