# Fulbat FTX5L-BS / FTZ6S GEL · Motorcycle battery 12V 5.3Ah 90A

![Fulbat FTX5L-BS / FTZ6S GEL · Motorcycle battery 12V 5.3Ah 90A](https://bateriasonline.es/725-home_default/fulbat-ftx5l-bs-ftz6s-gel.jpg)

> Fulbat FTX5L-BS / FTZ6S GEL: 5.3 Ah motorcycle battery, 90 A (EN), 113×70×105 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-ftx5l-bs-ftz6s-gel
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-FTX5L-BS / FTZ6S GEL
- **MPN**: FTX5L-BS / FTZ6S GEL
- **Price**: 35,50 € (VAT incl., Spain)
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT Motorcycle GEL |
| Application | Motorcycles |
| Technology | GEL |
| Voltage | 12 V |
| Capacity | 5.3 Ah |
| Cold cranking amps (EN) | 90 A |
| Length | 113 mm |
| Width | 70 mm |
| Height | 105 mm |
| Weight | 1.89 kg |
| Polarity | Positive terminal on the right |

## Quick description

Fulbat FTX5L-BS / FTZ6S GEL: motorcycle battery with 12 V, 5.3 Ah and 90 A cold cranking current, measuring 113 × 70 × 105 mm, with the positive terminal on the right.

## Description

## Where the Fulbat FTX5L-BS / FTZ6S GEL fits

The Fulbat FTX5L-BS / FTZ6S GEL is a motorcycle starter battery: compact, vibration-resistant and with just the right power to turn the starter motor and feed the electronics. It handles frame vibration and idle periods better than an adapted car battery.
At 5.3 Ah it is a small battery, typical of 50 to 125 cc scooters and light motorcycles. The FTX5L-BS / FTZ6S GEL belongs to the Fulbat FULBAT Motorcycle GEL range. [More Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Equivalents and alternatives to the Fulbat FTX5L-BS / FTZ6S GEL

Other gel batteries with the dimensions and polarity of the FTX5L-BS / FTZ6S GEL: with gel it is best to stay with gel, because the charging profile is different.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Motobatt MTZ6S | GEL | 6 Ah | 95 A | 114 × 70 × 107 |
| Motobatt MTZ7S | GEL | 7 Ah | 95 A | 113 × 70 × 107 |

## Fulbat FTX5L-BS GEL vs FTZ7S GEL, FTX7L-BS GEL and FB4L-B GEL

What sets the FTX5L-BS / FTZ6S GEL apart from its neighbours in the Fulbat range:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulbat FTX5L-BS / FTZ6S GEL (this one) | 5.3 Ah | 90 A | 113 × 70 × 105 | right | 1.89 kg |
| Fulbat FTZ7S GEL | 6.3 Ah | 130 A | 113 × 70 × 105 | right | 2.27 kg |
| Fulbat FTX7L-BS GEL | 6.3 Ah | 100 A | 113 × 70 × 130 | right | 1.89 kg |
| Fulbat FB4L-B GEL | 5.3 Ah | 50 A | 120 × 70 × 92 | right | 1.6 kg |

- Fulbat FTZ7S GEL: 1 Ah more, 40 A more cranking power, the same dimensions.
- Fulbat FTX7L-BS GEL: 1 Ah more, 10 A more cranking power, a different height (130 mm instead of 105 mm). It only fits if there is room for 130 mm of height.
- Fulbat FB4L-B GEL: the same capacity, 40 A less cranking power, a different case (120 × 70 × 92 mm).

## Before ordering the FTX5L-BS / FTZ6S GEL, check this

- Check the EN amps on your battery: if it says 90 A or less, the FTX5L-BS / FTZ6S GEL covers your engine.
- Your current battery should say about 5.3 Ah; a little more is also fine.
- The FTX5L-BS / FTZ6S GEL has the positive terminal on the right: compare it with your current battery.
- Length, width and height of the FTX5L-BS / FTZ6S GEL: 113 × 70 × 105 mm.

## Frequently asked questions about the Fulbat FTX5L-BS / FTZ6S GEL

### Fulbat FTX5L-BS / FTZ6S GEL or FTZ7S GEL?

Compared with the FTX5L-BS / FTZ6S GEL, the Fulbat FTZ7S GEL has 1 Ah more and 40 A more cranking power. If your current battery says 130 A or more, choose the FTZ7S GEL; if it says 90 A or less, the FTX5L-BS / FTZ6S GEL is enough. Both measure 113 × 70 × 105 mm, so they fit the same tray.

### Fulbat FTX5L-BS / FTZ6S GEL or FTX7L-BS GEL: what changes?

Mainly the height: the FTX5L-BS / FTZ6S GEL is 105 mm tall and the Fulbat FTX7L-BS GEL 130 mm, with the same length and width. In capacity and cranking power, the FTX7L-BS GEL offers 6.3 Ah and 100 A against 5.3 Ah and 90 A. Before choosing between the FTX5L-BS / FTZ6S GEL and the FTX7L-BS GEL, measure the free height of the battery compartment with the cover or bonnet closed.

### How much does the Fulbat FTX5L-BS / FTZ6S GEL weigh?

The FTX5L-BS / FTZ6S GEL weighs 1.89 kg. For reference, the Fulbat FTZ7S GEL (6.3 Ah) weighs 2.27 kg.

### Which battery is equivalent to the Fulbat FTX5L-BS / FTZ6S GEL?

For the FTX5L-BS / FTZ6S GEL, other gel batteries with its size and polarity: Motobatt MTZ6S and Motobatt MTZ7S.

### Which side is the positive terminal on the Fulbat FTX5L-BS / FTZ6S GEL?

The FTX5L-BS / FTZ6S GEL has the positive terminal on the right, looking at the battery from its long side with the terminals closest to you.

## GEL technology in the FTX5L-BS / FTZ6S GEL

The FTX5L-BS / FTZ6S GEL is a gel battery: the electrolyte is immobilised in silica gel. The FTX5L-BS / FTZ6S GEL handles repeated deep discharges well, its strong point compared with an AGM.

## Keep comparing: alternatives to the FTX5L-BS / FTZ6S GEL

- [More motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [Full Fulbat catalogue](https://bateriasonline.es/en/fulbat-batteries)
- [Fulbat FTX4L-BS / FTZ5S GEL](https://bateriasonline.es/en/fulbat-ftx4l-bs-ftz5s-gel) · 5.3 Ah, 70 A, 113×70×85 mm

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