# Fulbat FB12AL-A/A2 · Motorcycle battery 12V 12.6Ah 155A

![Fulbat FB12AL-A/A2 · Motorcycle battery 12V 12.6Ah 155A](https://bateriasonline.es/434-home_default/fulbat-fb12al-a-a2.jpg)

> Fulbat FB12AL-A/A2: 12.6 Ah motorcycle battery, 155 A (EN), 134×80×160 mm, positive terminal on the right. Equivalent to Exide EB12AL-A and Exide EB12AL-A2.

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

- **Canonical URL**: https://bateriasonline.es/en/fulbat-fb12al-a-a2
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-FB12AL-A/A2
- **MPN**: FB12AL-A/A2
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT Motorcycle DRY |
| Application | Motorcycles |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 12.6 Ah |
| Cold cranking amps (EN) | 155 A |
| Length | 134 mm |
| Width | 80 mm |
| Height | 160 mm |
| Weight | 3.98 kg |
| Polarity | Positive terminal on the right |

## Quick description

The Fulbat FB12AL-A/A2 is a motorcycle battery with 12 V, 12.6 Ah and 155 A cold cranking current, measuring 134 × 80 × 160 mm, with the positive terminal on the right. With the positive terminal on the left, the exact counterpart is the Fulbat FB12A-A.

## Description

## Who the Fulbat FB12AL-A/A2 is for

The Fulbat FB12AL-A/A2 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 12.6 Ah it goes into large-capacity motorcycles, adventure bikes, customs and quads. The FB12AL-A/A2 belongs to the Fulbat FULBAT Motorcycle DRY range. [See all Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Equivalents and alternatives to the Fulbat FB12AL-A/A2

Batteries that fit the FB12AL-A/A2's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the FB12AL-A/A2.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide EB12AL-A | Lead-acid | 12 Ah | 165 A | 135 × 80 × 160 |
| Exide EB12AL-A2 | Lead-acid | 12 Ah | 165 A | 135 × 80 × 160 |
| Varta YB12AL-A2 | Lead-acid | 12 Ah | 160 A | 136 × 82 × 161 |
| Motobatt MB12U | AGM | 15 Ah | 160 A | 135 × 80 × 161 |

## Fulbat FB12AL-A/A2 vs FB14L-A2, FB12A-A and FB14L-B2: differences

How the FB12AL-A/A2 compares with Fulbat batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulbat FB12AL-A/A2 (this one) | 12.6 Ah | 155 A | 134 × 80 × 160 | right | 3.98 kg |
| Fulbat FB14L-A2 | 14.7 Ah | 175 A | 134 × 89 × 166 | right | 4.43 kg |
| Fulbat FB12A-A | 12.6 Ah | 155 A | 134 × 80 × 160 | left | 3.98 kg |
| Fulbat FB14L-B2 | 14.7 Ah | 175 A | 134 × 89 × 166 | right | 4.43 kg |

- Fulbat FB14L-A2: 2.10 Ah more, 20 A more cranking power, a different case (134 × 89 × 166 mm).
- Fulbat FB12A-A: identical to the FB12AL-A/A2 except for the positive terminal, which is on the other side (positive terminal on the left).
- Fulbat FB14L-B2: 2.10 Ah more, 20 A more cranking power, a different case (134 × 89 × 166 mm).

## Check this before ordering the Fulbat FB12AL-A/A2

- The FB12AL-A/A2 needs 134 × 80 × 160 mm of space: measure it with the hold-down clamp in place.
- With the terminals facing you, the positive terminal of the FB12AL-A/A2 is on the right.
- With 12.6 Ah, the FB12AL-A/A2 replaces an original battery of that capacity or slightly less.
- Check the EN amps on your battery: if it says 155 A or less, the FB12AL-A/A2 covers your engine.

## Frequently asked questions about the Fulbat FB12AL-A/A2

### FB12AL-A/A2 or FB14L-A2: which one suits me?

Compared with the FB12AL-A/A2, the Fulbat FB14L-A2 has 2.10 Ah more and 20 A more cranking power. If your current battery says 175 A or more, choose the FB14L-A2; if it says 155 A or less, the FB12AL-A/A2 is enough. Mind the space: the FB14L-A2 measures 134 × 89 × 166 mm.

### Fulbat FB12AL-A/A2 or FB12A-A: what is the difference?

Only the polarity: the FB12AL-A/A2 has the positive terminal on the right and the FB12A-A the positive terminal on the left. Capacity (12.6 Ah), cranking power and dimensions are identical.

### How much does the Fulbat FB12AL-A/A2 weigh?

3.98 kg, with 12.6 Ah of capacity. For reference, the Fulbat FB14L-A2 (14.7 Ah) weighs 4.43 kg.

### Which battery is equivalent to the Fulbat FB12AL-A/A2?

With the same dimensions, polarity and similar capacity you have the Exide EB12AL-A, Exide EB12AL-A2 and Varta YB12AL-A2. As the FB12AL-A/A2 is a conventional battery, an EFB or AGM of the same size also works.

## Inside the FB12AL-A/A2: lead-acid technology

The FB12AL-A/A2 is a conventional lead-acid battery, with plates immersed in liquid electrolyte. Avoid leaving them discharged, as they sulphate, and charge them with a charger that cuts off or switches to maintenance when finished.

## Keep comparing: alternatives to the FB12AL-A/A2

- [More motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Fulbat range](https://bateriasonline.es/en/fulbat-batteries)
- [Exide EB12AL-A](https://bateriasonline.es/en/exide-eb12al-a) · 12 Ah, 165 A, 135×80×160 mm
- [Exide EB12AL-A2](https://bateriasonline.es/en/exide-eb12al-a2) · 12 Ah, 165 A, 135×80×160 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-10*