# Lawnmower battery Fulbat U1R-9 SLA 12V 28Ah 300A AGM ![Lawnmower battery Fulbat U1R-9 SLA 12V 28Ah 300A AGM](https://baterias.com/6168-home_default/battery-fulbat-u1r-9-sla-12v-28ah-300a.jpg) > Fulbat U1R-9 SLA lawnmower battery 12V 28Ah 300A AGM. Lawn & Garden SLA range. Dimensions 195×125×176 mm, + terminal on the right. For garden machinery. **Category:** [Lawnmower Batteries](https://baterias.com/gb/lawnmower-batteries) → [FULBAT](https://baterias.com/gb/fulbat) - **Canonical URL**: https://baterias.com/gb/battery-fulbat-u1r-9-sla-12v-28ah-300a - **Language**: en-GB - **Brand**: FULBAT - **Reference**: BCOM-FULBAT-U1R-9 SLA - **MPN**: U1R-9 SLA - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULBAT | | Model | FULBAT Lawn & Garden SLA | | Voltage (V) | 12 V | | Largo | 195 mm | | Ancho | 125 mm | | Alto | 176 mm | | Tecnología | AGM | | Terminal layout | Positive right | | Cold cranking amps (EN) | 300 A | | Capacity (C20) | 28 Ah | ## Quick description **Fulbat U1R-9 SLA 12V 28Ah 300A** is a compact garden battery: strong cranking reserve and good tolerance to long idle periods between seasons. ## Why this lawnmower 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 28 Ah C20 🔋 Cold cranking 300 A EN-1 📏 Dimensions 195×125×176 mm ⚙️ Technology AGM 🧭 Polarity Positive on the right 🏷️ Model FULBAT Lawn & Garden SLA #️⃣ Mfr. reference U1R-9 SLA ## Description ## Lawn mower battery Fulbat U1R-9 SLA 28Ah 300A 12V 12*V* Voltage 28*Ah* Capacity 300*A* Cold cranking The **Fulbat U1R-9 SLA** battery is rated at **12 V**, **28 Ah** and **300 A** of cold cranking current (EN) and is designed for ride-on mowers, tillers and garden machinery. It replaces the original battery without adaptation in ride-on mowers with a 195 × 125 × 176 mm format: same 28 Ah capacity and the positive terminal on the right. - Compact format for small trays. - Good tolerance to self-discharge. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. - Reliable starting after months of winter storage. ### What the Fulbat U1R-9 SLA is for With 28 Ah, the Fulbat U1R-9 SLA starts ride-on mowers, tillers and garden machinery and copes with garden-engine vibration. ### Size, terminals and hold-down of the Fulbat U1R-9 SLA In terms of format, the Fulbat U1R-9 SLA measures 195 × 125 × 176 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. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### Fulbat: the maker behind the U1R-9 SLA Fulbat has manufactured in France since 1978 and specialises in motorcycles and light vehicles. Its catalogue is short and clear, covers almost the whole fleet and works only with sealed, leak-free batteries. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### Technology inside the Fulbat U1R-9 SLA Within the Fulbat catalogue, the U1R-9 SLA is the 28 Ah model designed for this application. AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery. ### Usage and maintenance tips Check the voltage before the first start of the season and clean the terminals. Disconnect or remove the battery over winter and give it a maintenance charge before storing it. ### Official warranty The Fulbat U1R-9 SLA comes with the **manufacturer's official warranty** against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you. ### Shipping, delivery and returns 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 do I fit the U1R-9 SLA model in my truck? In most trucks 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 trucks with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### How long does the Fulbat U1R-9 SLA battery last? Expected lifespan of the Fulbat U1R-9 SLA 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 measurements of the U1R-9 SLA model? Dimensions (length × width × height) are 195×125×176 mm — also written as 195x125x176 mm — following the European DIN standard. Always measure the space in your truck before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals. ### Is the U1R-9 SLA 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 U1R-9 SLA typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which batteries are equivalent to the Fulbat U1R-9 SLA? 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 trucks. 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 2015. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-10-10*