# Varta LA50 · Boat battery 12V 50Ah 540A

![Varta LA50 · Boat battery 12V 50Ah 540A](https://bateriasonline.es/1963-home_default/varta-la50.jpg)

> Varta LA50 (ETN 840050054): 50 Ah boat battery, 540 A (EN), 207×175×190 mm, positive terminal on the right, L1 case, AGM. Ask for a no-obligation quote.

**Category:** [Marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries) → [Varta](https://bateriasonline.es/en/varta-batteries)

- **Canonical URL**: https://bateriasonline.es/en/varta-la50
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-LA50
- **EAN**: 4016987169919
- **MPN**: LA50
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA Professional Dual Purpose AGM |
| Application | Boats |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 50 Ah |
| Cold cranking amps (EN) | 540 A |
| Length | 207 mm |
| Width | 175 mm |
| Height | 190 mm |
| Weight | 14.72 kg |
| Polarity | Positive terminal on the right |
| Case size | L1 (207 × 175 × 190 mm) |
| ETN code | 840050054 |

## Quick description

Varta LA50 (ETN 840 050 054, also written 840050054): boat battery with 12 V, 50 Ah and 540 A cold cranking current, case size L1 (207 × 175 × 190 mm), with the positive terminal on the right.

## Description

## The Varta LA50 at a glance

The Varta LA50 is made for marine use. Check whether your boat needs starting, service or a dual-purpose battery before choosing.
In the Varta catalogue, the LA50 belongs to the Professional AGM line. [The full range of Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Inside the LA50: AGM technology

Inside, the LA50 has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Varta LA50 vs LA60: which one to choose?

The real differences between the LA50 and the closest Varta models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta LA50 (this one) | 50 Ah | 540 A | 207 × 175 × 190 | right | 14.72 kg |
| Varta LA60 | 60 Ah | 680 A | 242 × 175 × 190 | right | 17.29 kg |

- Varta LA60: 10 Ah more, 140 A more cranking power, a different case (242 × 175 × 190 mm).

## Equivalents and alternatives to the Varta LA50

We have no other battery with exactly the dimensions and polarity of the LA50. Browse the rest of our [marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries) to compare close options.

## Part numbers and codes for the Varta LA50

Shops, garages and catalogues identify the LA50 with these codes:

| Commercial reference | LA50 |
|---|---|
| ETN code | 840050054 (also 840 050 054) |
| EAN | 4016987169919 |
| Case size (EN) | L1 |
| Case size according to Varta | H4/L1 |
| UK code | 012AGM |
| Base hold-down | B13 |
| Also known as | Varta 840050054 · Varta 840 050 054 |
| Not to be confused with | Varta LA70 (70 Ah, 760 A), Varta LA80 (80 Ah, 800 A), Varta LA60 (60 Ah, 680 A) |

## Before ordering the LA50, check this

- The LA50 delivers 540 A cold cranking (EN standard); do not go below what your original battery states.
- With 50 Ah, the LA50 replaces an original battery of that capacity or slightly less.
- The LA50 has the positive terminal on the right: compare it with your current battery.
- Measure the space: the LA50 takes up 207 × 175 × 190 mm (European case size L1).

## Frequently asked questions about the Varta LA50

### LA50 or LA60: which one suits me?

Compared with the LA50, the Varta LA60 has 10 Ah more and 140 A more cranking power. If your current battery says 680 A or more, choose the LA60; if it says 540 A or less, the LA50 is enough. Mind the space: the LA60 measures 242 × 175 × 190 mm.

### What is the ETN code of the Varta LA50?

840050054, also written 840 050 054. The ETN (European Type Number) is printed on the label and used in parts catalogues.

### How much does the Varta LA50 weigh?

14.72 kg, with 50 Ah of capacity. For reference, the Varta LA60 (60 Ah) weighs 17.29 kg.

### What case size is the Varta LA50?

Case size L1: 207 × 175 × 190 mm (Varta lists it as H4/L1). The LA50 fits any standard L1 battery tray.

### Which side is the positive terminal on the Varta LA50?

On the LA50, 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.

## Other options if you are unsure about the LA50

- [Other marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries)
- [Full Varta catalogue](https://bateriasonline.es/en/varta-batteries)

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