# Fulbat 12N5.5-3B GEL · Motorcycle battery 12V 5.8Ah 70A

![Fulbat 12N5.5-3B GEL · Motorcycle battery 12V 5.8Ah 70A](https://bateriasonline.es/569-home_default/fulbat-12n5-5-3b-gel.jpg)

> Fulbat 12N5.5-3B GEL: 5.8 Ah motorcycle battery, 70 A (EN), 135×60×130 mm, positive terminal on the right, GEL.

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

- **Canonical URL**: https://bateriasonline.es/en/fulbat-12n5-5-3b-gel
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-12N5.5-3B GEL
- **MPN**: 12N5.5-3B GEL
- **Price**: 40,78 € (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 | 5.8 Ah |
| Cold cranking amps (EN) | 70 A |
| Length | 135 mm |
| Width | 60 mm |
| Height | 130 mm |
| Weight | 2.1 kg |
| Polarity | Positive terminal on the right |

## Quick description

The Fulbat 12N5.5-3B GEL is a motorcycle battery with 12 V, 5.8 Ah and 70 A cold cranking current, measuring 135 × 60 × 130 mm, with the positive terminal on the right. If yours has the positive terminal on the left, you need the Fulbat 12N5.5-4A/4B GEL.

## Description

## Where the Fulbat 12N5.5-3B GEL fits

The Fulbat 12N5.5-3B 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 5.8 Ah it is a small battery, typical of 50 to 125 cc scooters and light motorcycles. The 12N5.5-3B GEL belongs to the Fulbat FULBAT Motorcycle GEL range. [The full range of Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Equivalents and alternatives to the Fulbat 12N5.5-3B GEL

We have no other battery with exactly the dimensions and polarity of the 12N5.5-3B GEL. Browse the rest of our [motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries) to compare close options.

## Fulbat 12N5.5-3B GEL vs FB5L-B GEL, 12N5.5-4A/4B GEL and FTX7L-BS GEL: differences

How the 12N5.5-3B GEL compares with Fulbat batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulbat 12N5.5-3B GEL (this one) | 5.8 Ah | 70 A | 135 × 60 × 130 | right | 2.1 kg |
| Fulbat FB5L-B GEL | 5.3 Ah | 65 A | 120 × 60 × 130 | right | 1.9 kg |
| Fulbat 12N5.5-4A/4B GEL | 5.8 Ah | 70 A | 135 × 60 × 130 | left | 2.1 kg |
| Fulbat FTX7L-BS GEL | 6.3 Ah | 100 A | 113 × 70 × 130 | right | 1.89 kg |

- Fulbat FB5L-B GEL: 0.5 Ah less, 5 A less cranking power, a different case (120 × 60 × 130 mm).
- Fulbat 12N5.5-4A/4B GEL: identical to the 12N5.5-3B GEL except for the positive terminal, which is on the other side (positive terminal on the left).
- Fulbat FTX7L-BS GEL: 0.5 Ah more, 30 A more cranking power, a different case (113 × 70 × 130 mm).

## Before ordering the 12N5.5-3B GEL, check this

- The 12N5.5-3B GEL needs 135 × 60 × 130 mm of space: measure it with the hold-down clamp in place.
- Polarity of the 12N5.5-3B GEL: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- With 5.8 Ah, the 12N5.5-3B GEL replaces an original battery of that capacity or slightly less.
- Cold cranking: 70 A (EN), equal to or higher than the original.

## Frequently asked questions about the Fulbat 12N5.5-3B GEL

### 12N5.5-3B GEL or FB5L-B GEL: which one suits me?

Compared with the 12N5.5-3B GEL, the Fulbat FB5L-B GEL has 0.5 Ah less and 5 A less cranking power. The 12N5.5-3B GEL cranks harder; the FB5L-B GEL is only a good option if your original battery says 65 A or less. Mind the space: the FB5L-B GEL measures 120 × 60 × 130 mm.

### Fulbat 12N5.5-3B GEL or 12N5.5-4A/4B GEL: what is the difference?

Only the polarity: the 12N5.5-3B GEL has the positive terminal on the right and the 12N5.5-4A/4B GEL the positive terminal on the left. Capacity (5.8 Ah), cranking power and dimensions are identical.

### How much does the Fulbat 12N5.5-3B GEL weigh?

2.1 kg, with 5.8 Ah of capacity. For reference, the Fulbat FB5L-B GEL (5.3 Ah) weighs 1.9 kg.

### Which charger does the Fulbat 12N5.5-3B GEL need?

A charger with a GEL mode not exceeding 14.1-14.4 V. Charging it with a conventional lead-acid profile damages it through overcharging.

## What it means that the 12N5.5-3B GEL is GEL

The 12N5.5-3B GEL is a gel battery: the electrolyte is immobilised in silica gel. The 12N5.5-3B GEL handles repeated deep discharges well, its strong point compared with an AGM.

## Keep comparing: alternatives to the 12N5.5-3B GEL

- [More motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Fulbat range](https://bateriasonline.es/en/fulbat-batteries)
- [Motobatt MTX7DL](https://bateriasonline.es/en/motobatt-mtx7dl) · 7 Ah, 105 A, 149×60×129 mm

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