# Fulbat FTX20HL-BS GEL · Motorcycle battery 12V 18.9Ah 310A

![Fulbat FTX20HL-BS GEL · Motorcycle battery 12V 18.9Ah 310A](https://bateriasonline.es/749-home_default/fulbat-ftx20hl-bs-gel.jpg)

> Fulbat FTX20HL-BS GEL: 18.9 Ah motorcycle battery, 310 A (EN), 175×87×155 mm, positive terminal on the right.

**Category:** [Motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries) → [Fulbat](https://bateriasonline.es/en/fulbat-batteries)

- **Canonical URL**: https://bateriasonline.es/en/fulbat-ftx20hl-bs-gel
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-FTX20HL-BS GEL
- **MPN**: FTX20HL-BS GEL
- **Price**: 109,16 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT Motorcycle GEL |
| Application | Motorcycles |
| Technology | GEL |
| Voltage | 12 V |
| Capacity | 18.9 Ah |
| Cold cranking amps (EN) | 310 A |
| Length | 175 mm |
| Width | 87 mm |
| Height | 155 mm |
| Weight | 6.1 kg |
| Polarity | Positive terminal on the right |

## Quick description

The Fulbat FTX20HL-BS GEL is a motorcycle battery with 12 V, 18.9 Ah and 310 A cold cranking current, measuring 175 × 87 × 155 mm, with the positive terminal on the right.

## Description

## The Fulbat FTX20HL-BS GEL at a glance

The Fulbat FTX20HL-BS GEL is made for motorcycles, scooters and quads. It is worth keeping the FTX20HL-BS GEL on a maintenance charger if the bike is laid up over winter.
At 18.9 Ah it goes into large-capacity motorcycles, adventure bikes, customs and quads. The FTX20HL-BS GEL belongs to the Fulbat FULBAT Motorcycle GEL range. [More Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Equivalents and alternatives to the Fulbat FTX20HL-BS GEL

Gel alternatives to the FTX20HL-BS GEL, with the same size and polarity: a gel charger does not treat an AGM or a flooded battery the same way.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Fulbat FHD20HL-BS GEL | GEL | 21.1 Ah | 310 A | 175 × 87 × 155 |

## Fulbat FTX20HL-BS GEL vs FHD20HL-BS GEL and FB16CL-B GEL: which one to choose?

Torn between the FTX20HL-BS GEL and another similar Fulbat? This is what changes:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulbat FTX20HL-BS GEL (this one) | 18.9 Ah | 310 A | 175 × 87 × 155 | right | 6.1 kg |
| Fulbat FHD20HL-BS GEL | 21.1 Ah | 310 A | 175 × 87 × 155 | right | 6.36 kg |
| Fulbat FB16CL-B GEL | 20 Ah | 240 A | 175 × 100 × 175 | right | 6.53 kg |

- Fulbat FHD20HL-BS GEL: 2.20 Ah more, the same cranking power, the same dimensions.
- Fulbat FB16CL-B GEL: 1.10 Ah more, 70 A less cranking power, a different case (175 × 100 × 175 mm).

## What to look at before buying the FTX20HL-BS GEL

- Check the EN amps on your battery: if it says 310 A or less, the FTX20HL-BS GEL covers your engine.
- Capacity of the FTX20HL-BS GEL: 18.9 Ah; the same as your current battery or slightly more is fine.
- Polarity of the FTX20HL-BS GEL: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- Length, width and height of the FTX20HL-BS GEL: 175 × 87 × 155 mm.

## Frequently asked questions about the Fulbat FTX20HL-BS GEL

### FTX20HL-BS GEL or FHD20HL-BS GEL: which one suits me?

Compared with the FTX20HL-BS GEL, the Fulbat FHD20HL-BS GEL has 2.20 Ah more. With the same cranking power (310 A), the FTX20HL-BS GEL and the FHD20HL-BS GEL differ in capacity: the one with more Ah supports more load with the engine off. Both measure 175 × 87 × 155 mm, so they fit the same tray.

### How much does the Fulbat FTX20HL-BS GEL weigh?

6.1 kg, with 18.9 Ah of capacity. For reference, the Fulbat FHD20HL-BS GEL (21.1 Ah) weighs 6.36 kg.

### Which battery is equivalent to the Fulbat FTX20HL-BS GEL?

For the FTX20HL-BS GEL, other gel batteries with its size and polarity: Fulbat FHD20HL-BS GEL.

### Which side is the positive terminal on the Fulbat FTX20HL-BS GEL?

On the FTX20HL-BS GEL, the positive terminal is on the right with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.

### How do I stop the motorcycle battery going flat in winter?

Connect it to a maintenance charger or disconnect it if the bike will sit for more than a month. A flat motorcycle battery sulphates in a few weeks.

## Inside the FTX20HL-BS GEL: GEL technology

Inside, the FTX20HL-BS GEL holds its electrolyte in gel form. It is the classic technology for wheelchairs, scooters, motorhomes and solar.

## Other options if you are unsure about the FTX20HL-BS GEL

- [All motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Fulbat range](https://bateriasonline.es/en/fulbat-batteries)
- [Fulbat FTX20-BS GEL](https://bateriasonline.es/en/fulbat-ftx20-bs-gel) · 18.9 Ah, 270 A, 175×87×155 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-11*