# Varta YTX14AHL-BS · Motorcycle battery 12V 12Ah 210A

![Varta YTX14AHL-BS · Motorcycle battery 12V 12Ah 210A](https://bateriasonline.es/1194-home_default/varta-ytx14ahl-bs-512918021.jpg)

> Varta YTX14AHL-BS (ETN 512918021): 12 Ah motorcycle battery, 210 A (EN), 134×89×166 mm, positive terminal on the right, AGM. Equivalent to Exide AGM12-14.

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

- **Canonical URL**: https://bateriasonline.es/en/varta-ytx14ahl-bs-512918021
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-512918021
- **EAN**: 4016987149720
- **MPN**: 512918021
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA PowerSports AGM High Performance |
| Application | Motorcycles |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 12 Ah |
| Cold cranking amps (EN) | 210 A |
| Length | 134 mm |
| Width | 89 mm |
| Height | 166 mm |
| Weight | 5.02 kg |
| Polarity | Positive terminal on the right |
| ETN code | 512918021 |
| JIS code | YTX14 AHL-BS |

## Quick description

The Varta YTX14AHL-BS (ETN 512 918 021, also written 512918021) is a motorcycle battery (AGM) with 12 V, 12 Ah and 210 A cold cranking current, measuring 134 × 89 × 166 mm, with the positive terminal on the right.

## Description

## Where the Varta YTX14AHL-BS fits

The Varta YTX14AHL-BS is made for motorcycles, scooters and quads. With 12 Ah, the YTX14AHL-BS suits motorcycles and scooters that had a battery of that capacity.
At 12 Ah it covers mid-capacity motorcycles, large scooters and light quads. In the Varta catalogue, the YTX14AHL-BS belongs to the Powersports AGM High Performance line. [See all Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Part numbers and codes for the Varta YTX14AHL-BS

Shops, garages and catalogues identify the YTX14AHL-BS with these codes:

| Commercial reference | YTX14AHL-BS |
|---|---|
| ETN code | 512918021 (also 512 918 021) |
| Manufacturer short code | TX14AHL-BS |
| EAN | 4016987149720 |
| Base hold-down | B00 |
| Also known as | Varta 512918021 · Varta 512 918 021 · Varta TX14AHL-BS |

## Equivalents and alternatives to the Varta YTX14AHL-BS

Other AGM batteries that fit the YTX14AHL-BS's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide AGM12-14 | AGM | 12 Ah | 210 A | 135 × 90 × 165 |
| Exide ETX14AHL-BS | AGM | 12 Ah | 210 A | 135 × 90 × 165 |
| Fulbat FTX14AHL-BS | AGM | 12.6 Ah | 210 A | 135 × 90 × 167 |
| Varta YTX14AH-BS | AGM | 12 Ah | 210 A | 134 × 89 × 166 |
| Varta TX14AHL (FA) | AGM | 12 Ah | 210 A | 133 × 90 × 164 |

## Varta YTX14AHL-BS vs B12AL (FA) and B10L (FA): differences

How the YTX14AHL-BS compares with Varta batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta YTX14AHL-BS (this one) | 12 Ah | 210 A | 134 × 89 × 166 | right | 5.02 kg |
| Varta B12AL (FA) | 12 Ah | 125 A | 134 × 81 × 160 | right | 3.88 kg |
| Varta B10L (FA) | 10 Ah | 120 A | 133 × 90 × 142 | right | 3.68 kg |

- Varta B12AL (FA): the same capacity, 85 A less cranking power, a different case (134 × 81 × 160 mm).
- Varta B10L (FA): 2 Ah less, 90 A less cranking power, a different case (133 × 90 × 142 mm).

## What to look at before buying the YTX14AHL-BS

- Measure the space: the YTX14AHL-BS takes up 134 × 89 × 166 mm.
- Polarity of the YTX14AHL-BS: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- With 12 Ah, the YTX14AHL-BS replaces an original battery of that capacity or slightly less.
- The YTX14AHL-BS delivers 210 A cold cranking (EN standard); do not go below what your original battery states.

## Frequently asked questions about the Varta YTX14AHL-BS

### YTX14AHL-BS or B12AL (FA): which one suits me?

Compared with the YTX14AHL-BS, the Varta B12AL (FA) has 85 A less cranking power. The YTX14AHL-BS cranks harder; the B12AL (FA) is only a good option if your original battery says 125 A or less. Mind the space: the B12AL (FA) measures 134 × 81 × 160 mm.

### Is the Varta 512918021 the same battery as the Varta YTX14AHL-BS?

Yes. 512918021 is the ETN code Varta uses for its YTX14AHL-BS battery, so you can search for it by either code.

### How much does the Varta YTX14AHL-BS weigh?

5.02 kg, with 12 Ah of capacity. For reference, the Varta B12AL (FA) (12 Ah) weighs 3.88 kg.

### Which battery is equivalent to the Varta YTX14AHL-BS?

Only other AGM batteries with its dimensions and polarity: Exide AGM12-14, Exide ETX14AHL-BS and Fulbat FTX14AHL-BS. Neither an EFB nor a conventional battery replaces the YTX14AHL-BS.

### Which side is the positive terminal on the Varta YTX14AHL-BS?

On the YTX14AHL-BS, 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.

### Which charger does the Varta YTX14AHL-BS need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

## What it means that the YTX14AHL-BS is AGM

Inside, the YTX14AHL-BS has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Keep comparing: alternatives to the YTX14AHL-BS

- [All motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Varta range](https://bateriasonline.es/en/varta-batteries)
- [Exide AGM12-14](https://bateriasonline.es/en/exide-agm12-14) · 12 Ah, 210 A, 135×90×165 mm
- [Exide ETX14AHL-BS](https://bateriasonline.es/en/exide-etx14ahl-bs) · 12 Ah, 210 A, 135×90×165 mm

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