# Varta YTX20H-BS · Motorcycle battery 12V 18Ah 320A

![Varta YTX20H-BS · Motorcycle battery 12V 18Ah 320A](https://bateriasonline.es/1339-home_default/varta-ytx20h-bs-518908032.jpg)

> Varta YTX20H-BS (ETN 518908032): 18 Ah motorcycle battery, 320 A (EN), 175×87×154 mm, positive terminal on the right, AGM. Equivalent to Varta YTX20HL-BS.

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

- **Canonical URL**: https://bateriasonline.es/en/varta-ytx20h-bs-518908032
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-518908032
- **EAN**: 4016987149744
- **MPN**: 518908032
- **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 | 18 Ah |
| Cold cranking amps (EN) | 320 A |
| Length | 175 mm |
| Width | 87 mm |
| Height | 154 mm |
| Weight | 6.31 kg |
| Polarity | Positive terminal on the right |
| ETN code | 518908032 |
| JIS code | YTX20 H-BS |

## Quick description

The Varta YTX20H-BS (ETN 518 908 032, also written 518908032) is a motorcycle battery (AGM) with 12 V, 18 Ah and 320 A cold cranking current, measuring 175 × 87 × 154 mm, with the positive terminal on the right.

## Description

## Where the Varta YTX20H-BS fits

The Varta YTX20H-BS is made for motorcycles, scooters and quads. It handles frame vibration and idle periods better than an adapted car battery.
At 18 Ah it goes into large-capacity motorcycles, adventure bikes, customs and quads. In the Varta catalogue, the YTX20H-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 YTX20H-BS

This is how the Varta YTX20H-BS appears on the label and in parts catalogues:

| Commercial reference | YTX20H-BS |
|---|---|
| ETN code | 518908032 (also 518 908 032) |
| Manufacturer short code | TX20H-BS |
| EAN | 4016987149744 |
| Base hold-down | B00 |
| Also known as | Varta 518908032 · Varta 518 908 032 · Varta TX20H-BS |
| Not to be confused with | Varta YTX20L-BS (18 Ah, 250 A), Varta YTX20-BS (18 Ah, 250 A, positive terminal on the left), Varta YTX20CH-BS (18 Ah, 270 A, positive terminal on the left) |

## Equivalents and alternatives to the Varta YTX20H-BS

Other AGM batteries that fit the YTX20H-BS's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Motobatt MBTX20U | AGM | 21 Ah | 310 A | 175 × 87 × 155 |
| Motobatt MBTX20UHD | AGM | 21 Ah | 310 A | 175 × 87 × 155 |
| Varta YTX20HL-BS | AGM | 18 Ah | 320 A | 175 × 87 × 154 |
| Varta TX20HL (FA) | AGM | 18 Ah | 310 A | 176 × 89 × 154 |

## Varta YTX20H-BS vs YTX20L-4 (FA) and TX20HL (FA)

How the YTX20H-BS compares with Varta batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta YTX20H-BS (this one) | 18 Ah | 320 A | 175 × 87 × 154 | right | 6.31 kg |
| Varta YTX20L-4 (FA) | 18 Ah | 270 A | 175 × 87 × 154 | right | 5.93 kg |
| Varta TX20HL (FA) | 18 Ah | 310 A | 176 × 89 × 154 | right | 6.55 kg |

- Varta YTX20L-4 (FA): the same capacity, 50 A less cranking power, the same dimensions.
- Varta TX20HL (FA): the same capacity, 10 A less cranking power, the same dimensions.

## What to look at before buying the YTX20H-BS

- Cold cranking: 320 A (EN), equal to or higher than the original.
- With 18 Ah, the YTX20H-BS replaces an original battery of that capacity or slightly less.
- The YTX20H-BS has the positive terminal on the right: compare it with your current battery.
- Length, width and height of the YTX20H-BS: 175 × 87 × 154 mm.

## Frequently asked questions about the Varta YTX20H-BS

### YTX20H-BS or YTX20L-4 (FA): which one suits me?

Compared with the YTX20H-BS, the Varta YTX20L-4 (FA) has 50 A less cranking power. The YTX20H-BS cranks harder; the YTX20L-4 (FA) is only a good option if your original battery says 270 A or less. Both measure 175 × 87 × 154 mm, so they fit the same tray.

### Is the Varta 518908032 the same battery as the Varta YTX20H-BS?

Yes. 518908032 is the ETN code Varta uses for its YTX20H-BS battery, so you can search for it by either code.

### How much does the Varta YTX20H-BS weigh?

6.31 kg, with 18 Ah of capacity. For reference, the Varta YTX20L-4 (FA) (18 Ah) weighs 5.93 kg.

### Which battery is equivalent to the Varta YTX20H-BS?

Only other AGM batteries with its dimensions and polarity: Motobatt MBTX20U, Motobatt MBTX20UHD and Varta YTX20HL-BS. Neither an EFB nor a conventional battery replaces the YTX20H-BS.

### Which side is the positive terminal on the Varta YTX20H-BS?

On the YTX20H-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 YTX20H-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.

## Inside the YTX20H-BS: AGM technology

Inside, the YTX20H-BS has glass fibre separators (AGM) that hold the electrolyte. The YTX20H-BS needs a charger with an AGM mode that does not exceed 14.7 V.

## Keep comparing: alternatives to the YTX20H-BS

- [All motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Varta range](https://bateriasonline.es/en/varta-batteries)
- [Motobatt MBTX20U](https://bateriasonline.es/en/motobatt-mbtx20u) · 21 Ah, 310 A, 175×87×155 mm
- [Motobatt MBTX20UHD](https://bateriasonline.es/en/motobatt-mbtx20uhd) · 21 Ah, 310 A, 175×87×155 mm

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