# Motorcycle battery Fulbat FTX20A-BS GEL 12V 18.9Ah 270A GEL

![Motorcycle battery Fulbat FTX20A-BS GEL 12V 18.9Ah 270A GEL](https://baterias.com/6258-home_default/battery-fulbat-ftx20a-bs-gel-12v-18-9ah-270a.jpg)

> Fulbat FTX20A-BS GEL motorcycle battery 12V 18.9Ah 270A GEL. Motorcycle GEL range. Dimensions 150×87×161 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-ftx20a-bs-gel-12v-18-9ah-270a
- **Language**: en-GB
- **Brand**: FULBAT
- **Reference**: BCOM-FULBAT-FTX20A-BS GEL
- **MPN**: FTX20A-BS GEL
- **Price**: 95,06 €
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | FULBAT |
| Model | FULBAT Motorcycle GEL |
| Voltage (V) | 12 V |
| Largo | 150 mm |
| Ancho | 87 mm |
| Alto | 161 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 FTX20A-BS GEL 12V 18,9Ah 270A** 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
18,9 Ah C20

🔋 Cold cranking
270 A EN-1

📏 Dimensions
150×87×161 mm

⚙️ Technology
GEL

🧭 Polarity
Positive on the left

## Description

## Motorcycle battery Fulbat FTX20A-BS 18.9Ah 270A 12V

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

The **Fulbat FTX20A-BS motorcycle battery** is rated at **12 V**, **18.9 Ah** and **270 A** of cold cranking current (EN), and is designed for motorcycles, scooters, quads and personal watercraft. Its 150 × 87 × 161 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.
- Compact and lightweight format.
- Holds its charge through winter storage.
- Sealed and ready to fit, no acid handling.
- GEL: excellent resistance to deep discharge and long cycle life.

### What the Fulbat FTX20A-BS is for

With 18.9 Ah, the Fulbat FTX20A-BS covers the starting of motorcycles, scooters, quads and personal watercraft. The JIS code on your current battery label is the safest way to confirm equivalence.

### Size, terminals and hold-down of the Fulbat FTX20A-BS

The Fulbat FTX20A-BS is made in the 150 × 87 × 161 mm format. 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. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

### Technology inside the Fulbat FTX20A-BS

Within the Fulbat catalogue, the FTX20A-BS is the 18.9 Ah model designed for this application.
In a GEL battery the electrolyte is gelled with silica: it is fully sealed, cannot spill and tolerates deep discharge very well. It is the preferred technology in electric mobility, marine service and heavy-cycling applications.

### Fulbat: the maker behind the FTX20A-BS

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. We guarantee that every Fulbat arrives new, charged and with the manufacturer's full warranty.

### Official warranty

The Fulbat FTX20A-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.

### Care and maintenance

Check the resting voltage before the season (above 12.6 V on a charged battery) and make sure the terminals are clean and tight. GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte.

### When you get it and how to return it

Orders placed **before [[ks:cutoff]]** with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic and Canary Islands and the rest of the European Union allow 3 to 5 working days. You have **[[ks:return_days]] 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 is the Fulbat FTX20A-BS GEL 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.

### How long does the Fulbat FTX20A-BS GEL battery last?

Expected lifespan of the Fulbat FTX20A-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 FTX20A-BS GEL battery?

Dimensions (length × width × height) are 150×87×161 mm — also written as 150x87x161 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.

### Does this 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 FTX20A-BS GEL typically fits a wide range of European vehicles thanks to its standard DIN case format.

### Which batteries are equivalent to the Fulbat FTX20A-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*