# Varta YB3L-B · Motorcycle battery 12V 3Ah 30A

![Varta YB3L-B · Motorcycle battery 12V 3Ah 30A](https://bateriasonline.es/994-home_default/varta-yb3l-b-503013003.jpg)

> Varta YB3L-B (ETN 503013003): 3 Ah motorcycle battery, 30 A (EN), 100×58×112 mm, positive terminal on the right. Equivalent to Varta YB3L-A.

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

- **Canonical URL**: https://bateriasonline.es/en/varta-yb3l-b-503013003
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-503013003
- **EAN**: 4016987168875
- **MPN**: 503013003
- **Price**: 102,51 € (VAT incl., Spain)
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA PowerSports SLI Freshpack |
| Application | Motorcycles |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 3 Ah |
| Cold cranking amps (EN) | 30 A |
| Length | 100 mm |
| Width | 58 mm |
| Height | 112 mm |
| Weight | 1.29 kg |
| Polarity | Positive terminal on the right |
| Terminal type | Y6 |
| ETN code | 503013003 |
| JIS code | YB3 L-B |

## Quick description

Varta YB3L-B (ETN 503 013 003, also written 503013003): motorcycle battery with 12 V, 3 Ah and 30 A cold cranking current, measuring 100 × 58 × 112 mm, with the positive terminal on the right.

## Description

## The Varta YB3L-B at a glance

The Varta YB3L-B is made for motorcycles, scooters and quads. With 3 Ah, the YB3L-B suits motorcycles and scooters that had a battery of that capacity.
At 3 Ah it is a small battery, typical of 50 to 125 cc scooters and light motorcycles. In the Varta catalogue, the YB3L-B belongs to the Powersports SLI Freshpack line. [More Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Part numbers and codes for the Varta YB3L-B

Shops, garages and catalogues identify the YB3L-B with these codes:

| Commercial reference | YB3L-B |
|---|---|
| ETN code | 503013003 (also 503 013 003) |
| Manufacturer short code | B3L-B |
| EAN | 4016987168875 |
| Base hold-down | B00 |
| Terminal type | Y6 |
| Also known as | Varta 503013003 · Varta 503 013 003 · Varta B3L-B |
| Not to be confused with | Varta YB4L-B (4 Ah, 50 A), Varta YB5L-B (5 Ah, 60 A), Varta YB7L-B (7 Ah, 74 A) |

## Equivalents and alternatives to the Varta YB3L-B

Batteries that fit the YB3L-B's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the YB3L-B.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Varta YB3L-A | Lead-acid | 3 Ah | 30 A | 100 × 58 × 112 |
| Fulbat FB3L-B | Lead-acid | 3.2 Ah | 32 A | 98 × 56 × 110 |
| Fulbat FB3L-A | Lead-acid | 3.2 Ah | 32 A | 98 × 56 × 110 |

## Varta YB3L-B vs YTX5L-4 (FA) and YTX5L-BS: differences

The real differences between the YB3L-B and the closest Varta models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta YB3L-B (this one) | 3 Ah | 30 A | 100 × 58 × 112 | right | 1.29 kg |
| Varta YTX5L-4 (FA) | 4 Ah | 75 A | 113 × 70 × 105 | right | 1.8 kg |
| Varta YTX5L-BS | 4 Ah | 80 A | 114 × 71 × 106 | right | 1.83 kg |

- Varta YTX5L-4 (FA): 1 Ah more, 45 A more cranking power, a different case (113 × 70 × 105 mm), AGM technology.
- Varta YTX5L-BS: 1 Ah more, 50 A more cranking power, a different case (114 × 71 × 106 mm), AGM technology.

## What to look at before buying the YB3L-B

- Check the EN amps on your battery: if it says 30 A or less, the YB3L-B covers your engine.
- Your current battery should say about 3 Ah; a little more is also fine.
- The YB3L-B has the positive terminal on the right: compare it with your current battery.
- Measure the space: the YB3L-B takes up 100 × 58 × 112 mm.

## Frequently asked questions about the Varta YB3L-B

### YB3L-B or YTX5L-4 (FA): which one suits me?

Compared with the YB3L-B, the Varta YTX5L-4 (FA) has 1 Ah more, 45 A more cranking power and AGM technology. If your current battery says 75 A or more, choose the YTX5L-4 (FA); if it says 30 A or less, the YB3L-B is enough. Mind the space: the YTX5L-4 (FA) measures 113 × 70 × 105 mm.

### Is the Varta 503013003 the same battery as the Varta YB3L-B?

Yes. 503013003 is the ETN code Varta uses for its YB3L-B battery, so you can search for it by either code.

### How much does the Varta YB3L-B weigh?

1.29 kg, with 3 Ah of capacity. For reference, the Varta YTX5L-4 (FA) (4 Ah) weighs 1.8 kg.

### Which battery is equivalent to the Varta YB3L-B?

With the same dimensions, polarity and similar capacity you have the Varta YB3L-A, Fulbat FB3L-B and Fulbat FB3L-A. As the YB3L-B is a conventional battery, an EFB or AGM of the same size also works.

### Which side is the positive terminal on the Varta YB3L-B?

On the YB3L-B, 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.

### 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.

## What it means that the YB3L-B is lead-acid

Inside, the YB3L-B 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.

## Other options if you are unsure about the YB3L-B

- [More motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [More Varta models](https://bateriasonline.es/en/varta-batteries)
- [Varta YB3L-A](https://bateriasonline.es/en/varta-yb3l-a-503012003) · 3 Ah, 30 A, 100×58×112 mm
- [Fulbat FB3L-B](https://bateriasonline.es/en/fulbat-fb3l-b) · 3.2 Ah, 32 A, 98×56×110 mm

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