# Varta LFS120 · Boat battery 12V 120Ah 780A

![Varta LFS120 · Boat battery 12V 120Ah 780A](https://bateriasonline.es/1909-home_default/varta-lfs120.jpg)

> Varta LFS120 (ETN 930120078): 120 Ah boat battery, 780 A (EN), 349×175×236 mm, positive terminal on the left. Equivalent to Exide ER570.

**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-lfs120
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-LFS120
- **EAN**: 4016987167175
- **MPN**: LFS120
- **Price**: 284,27 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA Professional Starter |
| Application | Boats |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 120 Ah |
| Cold cranking amps (EN) | 780 A |
| Length | 349 mm |
| Width | 175 mm |
| Height | 236 mm |
| Weight | 29.01 kg |
| Polarity | Positive terminal on the left |
| ETN code | 930120078 |

## Quick description

Varta LFS120 (ETN 930 120 078, also written 930120078): boat battery with 12 V, 120 Ah and 780 A cold cranking current, measuring 349 × 175 × 236 mm, with the positive terminal on the left.

## Description

## The Varta LFS120 at a glance

The Varta LFS120 is made for marine use. Check whether your boat needs starting, service or a dual-purpose battery before choosing.
In the Varta catalogue, the LFS120 belongs to the Professional SLI line. [See all Varta batteries](https://bateriasonline.es/en/varta-batteries)

## What it means that the LFS120 is lead-acid

Inside, the LFS120 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.

## Varta LFS120 vs LFS105N and LFS105M

What sets the LFS120 apart from its neighbours in the Varta range:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta LFS120 (this one) | 120 Ah | 780 A | 349 × 175 × 236 | left | 29.01 kg |
| Varta LFS105N | 105 Ah | 800 A | 330 × 172 × 240 | – | 24.67 kg |
| Varta LFS105M | 105 Ah | 800 A | 330 × 172 × 240 | – | 24.67 kg |

- Varta LFS105N: 15 Ah less, 20 A more cranking power, a different case (330 × 172 × 240 mm).
- Varta LFS105M: 15 Ah less, 20 A more cranking power, a different case (330 × 172 × 240 mm).

## Equivalents and alternatives to the Varta LFS120

Same dimensions and polarity as the LFS120, with similar capacity and cranking power; as a conventional battery, the LFS120 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) |
|---|---|---|---|---|
| Exide ER570 | Lead-acid | 120 Ah | 760 A | 349 × 175 × 235 |
| Exide ER550 | Lead-acid | 115 Ah | 760 A | 349 × 175 × 235 |

## Varta LFS120 codes and part numbers

Shops, garages and catalogues identify the LFS120 with these codes:

| Commercial reference | LFS120 |
|---|---|
| ETN code | 930120078 (also 930 120 078) |
| EAN | 4016987167175 |
| Case size according to Varta | LOT7 |
| UK code | 664 |
| Base hold-down | B00 |
| Also known as | Varta 930120078 · Varta 930 120 078 · LOT7 |

## Check this before ordering the Varta LFS120

- Check the EN amps on your battery: if it says 780 A or less, the LFS120 covers your engine.
- Your current battery should say about 120 Ah; a little more is also fine.
- Polarity of the LFS120: positive terminal on the left (if yours has it on the other side, the cables will not reach).
- Measure the space: the LFS120 takes up 349 × 175 × 236 mm.

## Frequently asked questions about the Varta LFS120

### Varta LFS120 or LFS105N?

Compared with the LFS120, the Varta LFS105N has 15 Ah less and 20 A more cranking power. If your current battery says 800 A or more, choose the LFS105N; if it says 780 A or less, the LFS120 is enough. Mind the space: the LFS105N measures 330 × 172 × 240 mm.

### What is the ETN code of the Varta LFS120?

930120078, also written 930 120 078. The ETN (European Type Number) is printed on the label and used in parts catalogues.

### How much does the Varta LFS120 weigh?

The LFS120 weighs 29.01 kg. For reference, the Varta LFS105N (105 Ah) weighs 24.67 kg.

### Which battery is equivalent to the Varta LFS120?

With the same dimensions, polarity and similar capacity you have the Exide ER570 and Exide ER550. As the LFS120 is a conventional battery, an EFB or AGM of the same size also works.

### Which side is the positive terminal on the Varta LFS120?

The LFS120 has the positive terminal on the left, looking at the battery from its long side with the terminals closest to you.

### How do I look after the boat battery in winter?

Leave it 100% charged, disconnected or on a marine maintenance charger. A battery that spends the winter half-discharged loses capacity permanently.

## More batteries to compare with the LFS120

- [All marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries)
- [More Varta models](https://bateriasonline.es/en/varta-batteries)
- [Trojan SCS225](https://bateriasonline.es/en/trojan-scs225) · 130 Ah, 354×171×253 mm

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