# Exide AGM12-19.1 YTX20H-BS · Motorcycle battery 12V 18Ah 270A

![Exide AGM12-19.1 YTX20H-BS · Motorcycle battery 12V 18Ah 270A](https://bateriasonline.es/102-home_default/exide-agm12-19-1.jpg)

> Exide AGM12-19.1 (JIS YTX20H-BS): 18 Ah motorcycle battery, 270 A (EN), 175×90×155 mm, positive terminal on the left, AGM. Equivalent to Exide ETX20H-BS.

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

- **Canonical URL**: https://bateriasonline.es/en/exide-agm12-19-1
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-AGM12-19.1
- **EAN**: 3661024037600
- **MPN**: AGM12-19.1
- **Price**: 77,33 € (VAT incl., Spain)
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Exide |
| Range | EXIDE MOTORCYCLE AGM 12 V |
| Application | Motorcycles |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 18 Ah |
| Cold cranking amps (EN) | 270 A |
| Length | 175 mm |
| Width | 90 mm |
| Height | 155 mm |
| Weight | 6.1 kg |
| Polarity | Positive terminal on the left |
| Terminal type | M04 |
| JIS code | YTX20 H-BS |

## Quick description

The Exide AGM12-19.1 (JIS YTX20H-BS) is a motorcycle battery (AGM) with 12 V, 18 Ah and 270 A cold cranking current, measuring 175 × 90 × 155 mm, with the positive terminal on the left. If yours has the positive terminal on the right, you need the Exide AGM12-19.

## Description

## The Exide AGM12-19.1 at a glance

The Exide AGM12-19.1 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 18 Ah it goes into large-capacity motorcycles, adventure bikes, customs and quads. The AGM12-19.1 belongs to the Exide EXIDE MOTORCYCLE AGM 12V range. [The full range of Exide batteries](https://bateriasonline.es/en/exide-batteries)

## Exide AGM12-19.1 codes and part numbers

Look for any of these AGM12-19.1 codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | AGM12-19.1 |
|---|---|
| JIS code | YTX20H-BS |
| EAN | 3661024037600 |
| Terminal type | M04 |
| Not to be confused with | Exide AGM12-11 (11 Ah, 205 A), Exide AGM12-19 (18 Ah, 270 A, positive terminal on the right), Exide AGM12-14.1 (12 Ah, 210 A) |

## Equivalents and alternatives to the Exide AGM12-19.1

As the AGM12-19.1 is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Fulbat FTX20-BS | AGM | 18.9 Ah | 270 A | 175 × 87 × 155 |
| Varta TX20H (FA) | AGM | 18 Ah | 310 A | 176 × 89 × 154 |
| Varta YTX20-BS | AGM | 18 Ah | 250 A | 177 × 88 × 156 |
| Exide ETX20H-BS | AGM | 18 Ah | 270 A | 175 × 90 × 155 |
| Motobatt MBTX20U | AGM | 21 Ah | 310 A | 175 × 87 × 155 |
| Motobatt MBTX20UHD | AGM | 21 Ah | 310 A | 175 × 87 × 155 |

## Exide AGM12-19.1 vs AGM12-17, AGM12-19 and ETX20CH-BS: differences

How the AGM12-19.1 compares with Exide batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Exide AGM12-19.1 (this one) | 18 Ah | 270 A | 175 × 90 × 155 | left | 6.1 kg |
| Exide AGM12-17 | 18 Ah | 230 A | 150 × 90 × 160 | left | 5.5 kg |
| Exide AGM12-19 | 18 Ah | 270 A | 175 × 90 × 155 | right | 6.1 kg |
| Exide ETX20CH-BS | 18 Ah | 230 A | 150 × 90 × 160 | left | 5.7 kg |

- Exide AGM12-17: the same capacity, 40 A less cranking power, a different case (150 × 90 × 160 mm).
- The Exide AGM12-19 is the same battery with the positive terminal on the other side: choose it if your current battery has the positive terminal on the right.
- Exide ETX20CH-BS: the same capacity, 40 A less cranking power, a different case (150 × 90 × 160 mm).

## Check this before ordering the Exide AGM12-19.1

- Cold cranking: 270 A (EN), equal to or higher than the original.
- Your current battery should say about 18 Ah; a little more is also fine.
- Polarity of the AGM12-19.1: positive terminal on the left (if yours has it on the other side, the cables will not reach).
- The AGM12-19.1 needs 175 × 90 × 155 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Exide AGM12-19.1

### Exide AGM12-19.1 or AGM12-17?

Compared with the AGM12-19.1, the Exide AGM12-17 has 40 A less cranking power. The AGM12-19.1 cranks harder; the AGM12-17 is only a good option if your original battery says 230 A or less. Mind the space: the AGM12-17 measures 150 × 90 × 160 mm.

### What is the difference between the Exide AGM12-19.1 and the AGM12-19?

They are the same battery with the terminals swapped: positive terminal on the left on the AGM12-19.1, positive terminal on the right on the AGM12-19. Look at your current battery with the terminals facing you and pick the one that matches.

### How much does the Exide AGM12-19.1 weigh?

The AGM12-19.1 weighs 6.1 kg. For reference, the Exide AGM12-17 (18 Ah) weighs 5.5 kg.

### Which battery is equivalent to the Exide AGM12-19.1?

Only other AGM batteries with its dimensions and polarity: Fulbat FTX20-BS, Varta TX20H (FA) and Varta YTX20-BS. Neither an EFB nor a conventional battery replaces the AGM12-19.1.

## Inside the AGM12-19.1: AGM technology

The AGM12-19.1 is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the AGM12-19.1 can be fitted in the boot or under a seat with no risk of spills.

## Keep comparing: alternatives to the AGM12-19.1

- [More motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Exide range](https://bateriasonline.es/en/exide-batteries)
- [Fulbat FTX20-BS](https://bateriasonline.es/en/fulbat-ftx20-bs) · 18.9 Ah, 270 A, 175×87×155 mm
- [Varta TX20H (FA)](https://bateriasonline.es/en/varta-tx20h-fa-518909031) · 18 Ah, 310 A, 176×89×154 mm

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