# Varta B12AL (FA) · Motorcycle battery 12V 12Ah 125A

![Varta B12AL (FA) · Motorcycle battery 12V 12Ah 125A](https://bateriasonline.es/1562-home_default/varta-b12al-fa-512909013.jpg)

> Varta B12AL (FA) (ETN 512909013): 12 Ah motorcycle battery, 125 A (EN), 134×81×160 mm, positive terminal on the right, AGM. Ask for a no-obligation quote.

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

- **Canonical URL**: https://bateriasonline.es/en/varta-b12al-fa-512909013
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-512909013
- **EAN**: 4016987169278
- **MPN**: 512909013
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA PowerSports AGM Active |
| Application | Motorcycles |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 12 Ah (C10) |
| Cold cranking amps (EN) | 125 A |
| Length | 134 mm |
| Width | 81 mm |
| Height | 160 mm |
| Weight | 3.88 kg |
| Polarity | Positive terminal on the right |
| Terminal type | Y6 |
| ETN code | 512909013 |
| JIS code | B12 AL YB12 AL |

## Quick description

The Varta B12AL (FA) (ETN 512 909 013, also written 512909013) is a motorcycle battery (AGM) with 12 V, 12 Ah and 125 A cold cranking current, measuring 134 × 81 × 160 mm, with the positive terminal on the right. If yours has the positive terminal on the left, you need the Varta B12A (FA).

## Description

## Where the Varta B12AL (FA) fits

The Varta B12AL (FA) is made for motorcycles, scooters and quads. It handles frame vibration and idle periods better than an adapted car battery.
At 12 Ah it covers mid-capacity motorcycles, large scooters and light quads. In the Varta catalogue, the B12AL (FA) belongs to the Powersports AGM Active line. [The full range of Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Part numbers and codes for the Varta B12AL (FA)

Shops, garages and catalogues identify the B12AL (FA) with these codes:

| Commercial reference | B12AL (FA) |
|---|---|
| ETN code | 512909013 (also 512 909 013) |
| EAN | 4016987169278 |
| Base hold-down | B00 |
| Terminal type | Y6 |
| Also known as | Varta 512909013 · Varta 512 909 013 · B12AL |
| Not to be confused with | Varta B12A (FA) (12 Ah, 125 A, positive terminal on the left) |

## Equivalents and alternatives to the Varta B12AL (FA)

We have no other battery with exactly the dimensions and polarity of the B12AL (FA). Browse the rest of our [motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries) to compare close options.

## Varta B12AL (FA) vs TX14AHL (FA), B12A (FA) and YTX14AH-BS: which one to choose?

Torn between the B12AL (FA) and another similar Varta? This is what changes:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta B12AL (FA) (this one) | 12 Ah | 125 A | 134 × 81 × 160 | right | 3.88 kg |
| Varta TX14AHL (FA) | 12 Ah | 210 A | 133 × 90 × 164 | right | 4.4 kg |
| Varta B12A (FA) | 12 Ah | 125 A | 134 × 81 × 160 | left | 3.88 kg |
| Varta YTX14AH-BS | 12 Ah | 210 A | 134 × 89 × 166 | right | 5.02 kg |

- Varta TX14AHL (FA): the same capacity, 85 A more cranking power, a different case (133 × 90 × 164 mm).
- The Varta B12A (FA) is the same battery with the positive terminal on the other side: choose it if your current battery has the positive terminal on the left.
- Varta YTX14AH-BS: the same capacity, 85 A more cranking power, a different case (134 × 89 × 166 mm).

## Check this before ordering the Varta B12AL (FA)

- Cold cranking: 125 A (EN), equal to or higher than the original.
- Capacity of the B12AL (FA): 12 Ah; the same as your current battery or slightly more is fine.
- Polarity of the B12AL (FA): positive terminal on the right (if yours has it on the other side, the cables will not reach).
- Measure the space: the B12AL (FA) takes up 134 × 81 × 160 mm.

## Frequently asked questions about the Varta B12AL (FA)

### B12AL (FA) or TX14AHL (FA): which one suits me?

Compared with the B12AL (FA), the Varta TX14AHL (FA) has 85 A more cranking power. If your current battery says 210 A or more, choose the TX14AHL (FA); if it says 125 A or less, the B12AL (FA) is enough. Mind the space: the TX14AHL (FA) measures 133 × 90 × 164 mm.

### Varta B12AL (FA) or B12A (FA): what is the difference?

Only the polarity: the B12AL (FA) has the positive terminal on the right and the B12A (FA) the positive terminal on the left. Capacity (12 Ah), cranking power and dimensions are identical. That is why their ETNs only differ in the middle group: 512 909 013 for the B12AL (FA) and 512 919 013 for the B12A (FA).

### Is the Varta 512909013 the same battery as the Varta B12AL (FA)?

Yes. 512909013 is the ETN code Varta uses for its B12AL (FA) battery, so you can search for it by either code.

### How much does the Varta B12AL (FA) weigh?

3.88 kg, with 12 Ah of capacity. For reference, the Varta TX14AHL (FA) (12 Ah) weighs 4.4 kg.

### 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.

## AGM technology in the B12AL (FA)

Inside, the B12AL (FA) has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Other options if you are unsure about the B12AL (FA)

- [More motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Varta range](https://bateriasonline.es/en/varta-batteries)

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