# Motorcycle battery Fulbat FTX20-BS GEL 12V 18.9Ah 270A GEL

![Motorcycle battery Fulbat FTX20-BS GEL 12V 18.9Ah 270A GEL](https://baterias.com/6256-home_default/battery-fulbat-ftx20-bs-gel-12v-18-9ah-270a.jpg)

> Fulbat FTX20-BS GEL motorcycle battery 12V 18.9Ah 270A GEL. Motorcycle GEL 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-gel-12v-18-9ah-270a
- **Language**: en-GB
- **Brand**: FULBAT
- **Reference**: BCOM-FULBAT-FTX20-BS GEL
- **MPN**: FTX20-BS GEL
- **Price**: 111,39 €
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | FULBAT |
| Model | FULBAT Motorcycle GEL |
| Voltage (V) | 12 V |
| Largo | 175 mm |
| Ancho | 87 mm |
| Alto | 155 mm |
| Tecnología | GEL |
| Terminal layout | Positive left |
| Cold cranking amps (EN) | 270 A |
| Capacity (C20) | 18.9 Ah |
| Capacity (C10) | 18 Ah (c10) |

## Quick description

**Fulbat FTX20-BS GEL 12V 18,9Ah 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
18,9 Ah C20

🔋 Cold cranking
270 A EN-1

📏 Dimensions
175×87×155 mm

⚙️ Technology
GEL

🧭 Polarity
Positive on the left

## Description

## Motorcycle battery Fulbat FTX20-BS 18.9Ah 270A 12V

12*V* Voltage
18.9*Ah* Capacity
270*A* Cold cranking

The **Fulbat FTX20-BS** is a motorcycle battery with **18.9 Ah** and **270 A** of cold cranking current (EN), designed for motorcycles, scooters, quads and personal watercraft. Its 175 × 87 × 155 mm and the positive terminal on the left make it the exact replacement for the 18.9 Ah battery fitted as standard to many motorcycles.
- Sealed and ready to fit, no acid handling.
- GEL: excellent resistance to deep discharge and long cycle life.
- Compact and lightweight format.
- Holds its charge through winter storage.

### What the Fulbat FTX20-BS is for

Designed for motorcycles, scooters, quads and personal watercraft, the Fulbat FTX20-BS replaces the original battery of bikes that use this code or format. Check the position of the positive terminal before ordering.

### Dimensions, polarity and mounting

In terms of format, the Fulbat FTX20-BS measures 175 × 87 × 155 mm (length × width × height). The positive terminal on the left 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.

### Why choose Fulbat batteries

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 FTX20-BS

The FTX20-BS 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.
GEL technology fixes the acid in a solid gel. That removes maintenance and leaks and gives very long cycle life, in exchange for slightly slower recharging and lower peak current than an AGM.

### Usage and maintenance tips

GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte. If the bike spends the winter standing, connect a trickle charger: deep discharge through inactivity is the first cause of premature failure.

### Official warranty

The Fulbat FTX20-BS 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

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

### How do I change this battery step by step?

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.

### How long does the Fulbat FTX20-BS GEL battery last?

Expected lifespan of the Fulbat FTX20-BS GEL 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 GEL 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 GEL 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 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The FTX20-BS GEL typically fits a wide range of European vehicles thanks to its standard DIN case format.

### Which batteries are equivalent to the Fulbat FTX20-BS GEL?

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 — over 25 years of experience validating automotive batteries.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-10-06*