# Varta SY50-N18L-AT · Motorcycle battery 12V 20Ah 260A

![Varta SY50-N18L-AT · Motorcycle battery 12V 20Ah 260A](https://bateriasonline.es/1540-home_default/varta-sy50-n18l-at-520016026.jpg)

> Varta SY50-N18L-AT (ETN 520016026): 20 Ah motorcycle battery, 260 A (EN), 205×90×162 mm, positive terminal on the right.

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

- **Canonical URL**: https://bateriasonline.es/en/varta-sy50-n18l-at-520016026
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-520016026
- **EAN**: 4016987141298
- **MPN**: 520016026
- **Price**: 153,62 € (VAT incl., Spain)
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA PowerSports Freshpack |
| Application | Motorcycles |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 20 Ah |
| Cold cranking amps (EN) | 260 A |
| Length | 205 mm |
| Width | 90 mm |
| Height | 162 mm |
| Weight | 6.19 kg |
| Polarity | Positive terminal on the right |
| Terminal type | Y7 |
| ETN code | 520016026 |
| JIS code | SY50-N18 L-AT SC50-N18 L-AT |

## Quick description

The Varta SY50-N18L-AT (ETN 520 016 026, also written 520016026) is a motorcycle battery with 12 V, 20 Ah and 260 A cold cranking current, measuring 205 × 90 × 162 mm, with the positive terminal on the right.

## Description

## Where the Varta SY50-N18L-AT fits

The Varta SY50-N18L-AT is made for motorcycles, scooters and quads. It handles frame vibration and idle periods better than an adapted car battery.
At 20 Ah it goes into large-capacity motorcycles, adventure bikes, customs and quads. In the Varta catalogue, the SY50-N18L-AT belongs to the Powersports Freshpack line. [More Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Varta SY50-N18L-AT codes and part numbers

Shops, garages and catalogues identify the SY50-N18L-AT with these codes:

| Commercial reference | SY50-N18L-AT |
|---|---|
| ETN code | 520016026 (also 520 016 026) |
| Manufacturer short code | 50-N18L-AT |
| EAN | 4016987141298 |
| Base hold-down | B00 |
| Terminal type | Y7 |
| Also known as | Varta 520016026 · Varta 520 016 026 · Varta 50-N18L-AT |

## Equivalents and alternatives to the Varta SY50-N18L-AT

Same dimensions and polarity as the SY50-N18L-AT, with similar capacity and cranking power; as a conventional battery, the SY50-N18L-AT can also be replaced by an EFB or AGM of the same size if you want more cycles.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Fulbat F50-N18L-A / 12N18-3A | Lead-acid | 21.1 Ah | 260 A | 205 × 90 × 162 |
| Fulbat F50-N18L-A3 | Lead-acid | 21.1 Ah | 260 A | 205 × 90 × 162 |
| Exide E50-N18L-A | Lead-acid | 20 Ah | 260 A | 205 × 90 × 165 |
| Exide E50-N18L-A3 | Lead-acid | 20 Ah | 260 A | 205 × 90 × 165 |
| Varta Y50-N18L-A | Lead-acid | 20 Ah | 260 A | 207 × 92 × 164 |

## Varta SY50-N18L-AT vs YTX24HL-BS and TX24HL (FA): which one to choose?

Torn between the SY50-N18L-AT and another similar Varta? This is what changes:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta SY50-N18L-AT (this one) | 20 Ah | 260 A | 205 × 90 × 162 | right | 6.19 kg |
| Varta YTX24HL-BS | 21 Ah | 340 A | 205 × 90 × 164 | right | 7.7 kg |
| Varta TX24HL (FA) | 21 Ah | 330 A | 205 × 87 × 162 | right | 7 kg |

- Varta YTX24HL-BS: 1 Ah more, 80 A more cranking power, the same dimensions, AGM technology.
- Varta TX24HL (FA): 1 Ah more, 70 A more cranking power, a different case (205 × 87 × 162 mm), AGM technology.

## Check this before ordering the Varta SY50-N18L-AT

- Cold cranking: 260 A (EN), equal to or higher than the original.
- Your current battery should say about 20 Ah; a little more is also fine.
- With the terminals facing you, the positive terminal of the SY50-N18L-AT is on the right.
- Measure the space: the SY50-N18L-AT takes up 205 × 90 × 162 mm.

## Frequently asked questions about the Varta SY50-N18L-AT

### Varta SY50-N18L-AT or YTX24HL-BS?

Compared with the SY50-N18L-AT, the Varta YTX24HL-BS has 1 Ah more, 80 A more cranking power and AGM technology. If your current battery says 340 A or more, choose the YTX24HL-BS; if it says 260 A or less, the SY50-N18L-AT is enough. Both measure 205 × 90 × 162 mm, so they fit the same tray.

### Is the Varta 520016026 the same battery as the Varta SY50-N18L-AT?

Yes. 520016026 is the ETN code Varta uses for its SY50-N18L-AT battery, so you can search for it by either code.

### How much does the Varta SY50-N18L-AT weigh?

The SY50-N18L-AT weighs 6.19 kg. For reference, the Varta YTX24HL-BS (21 Ah) weighs 7.7 kg.

### Which battery is equivalent to the Varta SY50-N18L-AT?

With the same dimensions, polarity and similar capacity you have the Fulbat F50-N18L-A / 12N18-3A, Fulbat F50-N18L-A3 and Exide E50-N18L-A. As the SY50-N18L-AT is a conventional battery, an EFB or AGM of the same size also works.

### Which side is the positive terminal on the Varta SY50-N18L-AT?

The SY50-N18L-AT has the positive terminal on the right, looking at the battery from its long side with the terminals closest to you.

## What it means that the SY50-N18L-AT is lead-acid

Inside, the SY50-N18L-AT is classic lead-acid: liquid electrolyte and lead plates. It is a robust, well-known technology with a good capacity-to-price ratio, and still the basis of most cars, trucks and traction equipment.

## More batteries to compare with the SY50-N18L-AT

- [All motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Varta range](https://bateriasonline.es/en/varta-batteries)
- [Fulbat F50-N18L-A / 12N18-3A](https://bateriasonline.es/en/fulbat-f50-n18l-a-12n18-3a) · 21.1 Ah, 260 A, 205×90×162 mm
- [Fulbat F50-N18L-A3](https://bateriasonline.es/en/fulbat-f50-n18l-a3) · 21.1 Ah, 260 A, 205×90×162 mm

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