# Varta YTX5L-4 (FA) · Motorcycle battery 12V 4Ah 75A

![Varta YTX5L-4 (FA) · Motorcycle battery 12V 4Ah 75A](https://bateriasonline.es/1061-home_default/varta-ytx5l-4-fa-504909008.jpg)

> Varta YTX5L-4 (FA) (ETN 504909008): 4 Ah motorcycle battery, 75 A (EN), 113×70×105 mm, positive terminal on the right, AGM. Equivalent to Exide AGM12-5.

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

- **Canonical URL**: https://bateriasonline.es/en/varta-ytx5l-4-fa-504909008
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-504909008
- **EAN**: 4016987168929
- **MPN**: 504909008
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA PowerSports AGM Active |
| Application | Motorcycles |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 4 Ah |
| Cold cranking amps (EN) | 75 A |
| Length | 113 mm |
| Width | 70 mm |
| Height | 105 mm |
| Weight | 1.8 kg |
| Polarity | Positive terminal on the right |
| Terminal type | Y4 |
| ETN code | 504909008 |
| JIS code | YTX5 L-4 |

## Quick description

Varta YTX5L-4 (FA) (ETN 504 909 008, also written 504909008): motorcycle battery (AGM) with 12 V, 4 Ah and 75 A cold cranking current, measuring 113 × 70 × 105 mm, with the positive terminal on the right.

## Description

## Who the Varta YTX5L-4 (FA) is for

The Varta YTX5L-4 (FA) 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 4 Ah it is a small battery, typical of 50 to 125 cc scooters and light motorcycles. Varta lists the YTX5L-4 (FA) in its Powersports AGM Active line. [See all Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Part numbers and codes for the Varta YTX5L-4 (FA)

Look for any of these YTX5L-4 (FA) codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | YTX5L-4 (FA) |
|---|---|
| ETN code | 504909008 (also 504 909 008) |
| Manufacturer short code | TX5L (FA) |
| EAN | 4016987168929 |
| Base hold-down | B00 |
| Terminal type | Y4 |
| Also known as | Varta 504909008 · Varta 504 909 008 · Varta TX5L (FA) |
| Not to be confused with | Varta YTX4L-4 (FA) (3 Ah, 50 A) |

## Equivalents and alternatives to the Varta YTX5L-4 (FA)

Other AGM batteries that fit the YTX5L-4 (FA)'s tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Fulbat FTX5L-BS | AGM | 4.2 Ah | 80 A | 113 × 70 × 105 |
| Exide AGM12-5 | AGM | 4 Ah | 70 A | 115 × 70 × 105 |
| Exide ETX5L-BS | AGM | 4 Ah | 70 A | 115 × 70 × 105 |
| Varta YTX5L-BS | AGM | 4 Ah | 80 A | 114 × 71 × 106 |

## Varta YTX5L-4 (FA) vs YTX5L-BS and TTZ7S-BS: differences

What sets the YTX5L-4 (FA) apart from its neighbours in the Varta range:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta YTX5L-4 (FA) (this one) | 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 TTZ7S-BS | 5 Ah | 120 A | 113 × 70 × 105 | right | 2.14 kg |

- Varta YTX5L-BS: the same capacity, 5 A more cranking power, the same dimensions.
- Varta TTZ7S-BS: 1 Ah more, 45 A more cranking power, the same dimensions.

## Before ordering the YTX5L-4 (FA), check this

- Length, width and height of the YTX5L-4 (FA): 113 × 70 × 105 mm.
- The YTX5L-4 (FA) has the positive terminal on the right: compare it with your current battery.
- Your current battery should say about 4 Ah; a little more is also fine.
- Cold cranking: 75 A (EN), equal to or higher than the original.

## Frequently asked questions about the Varta YTX5L-4 (FA)

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

Compared with the YTX5L-4 (FA), the Varta YTX5L-BS has 5 A more cranking power. If your current battery says 80 A or more, choose the YTX5L-BS; if it says 75 A or less, the YTX5L-4 (FA) is enough. Both measure 113 × 70 × 105 mm, so they fit the same tray.

### Is the Varta 504909008 the same battery as the Varta YTX5L-4 (FA)?

Yes. 504909008 is the ETN code Varta uses for its YTX5L-4 (FA) battery, so you can search for it by either code.

### How much does the Varta YTX5L-4 (FA) weigh?

1.8 kg, with 4 Ah of capacity. For reference, the Varta YTX5L-BS (4 Ah) weighs 1.83 kg.

### Which battery is equivalent to the Varta YTX5L-4 (FA)?

Only other AGM batteries with its dimensions and polarity: Fulbat FTX5L-BS, Exide AGM12-5 and Exide ETX5L-BS. Neither an EFB nor a conventional battery replaces the YTX5L-4 (FA).

### Which side is the positive terminal on the Varta YTX5L-4 (FA)?

On the YTX5L-4 (FA), 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 YTX5L-4 (FA) 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 YTX5L-4 (FA): AGM technology

The YTX5L-4 (FA) is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the YTX5L-4 (FA) can be fitted in the boot or under a seat with no risk of spills.

## Other options if you are unsure about the YTX5L-4 (FA)

- [More motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Varta range](https://bateriasonline.es/en/varta-batteries)
- [Fulbat FTX5L-BS](https://bateriasonline.es/en/fulbat-ftx5l-bs) · 4.2 Ah, 80 A, 113×70×105 mm
- [Exide AGM12-5](https://bateriasonline.es/en/exide-agm12-5) · 4 Ah, 70 A, 115×70×105 mm

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