# Q-Battery 12SEM-80 · Motorhome battery 12V 80Ah

![Q-Battery 12SEM-80 · Motorhome battery 12V 80Ah](https://bateriasonline.es/3461-home_default/q-battery-12sem-80.jpg)

> Q-Battery 12SEM-80: 80 Ah motorhome battery, 278×175×190 mm, positive terminal on the right. Compare sizes and equivalents; 14-day returns.

**Category:** [Leisure batteries for motorhomes and caravans](https://bateriasonline.es/en/leisure-batteries-motorhome-caravan) → [Q-Battery](https://bateriasonline.es/en/q-battery-batteries)

- **Canonical URL**: https://bateriasonline.es/en/q-battery-12sem-80
- **Language**: en
- **Brand**: Q-Battery
- **Reference**: BOL-QBATTERY-12SEM-80
- **MPN**: 12SEM-80
- **Price**: 161,31 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Q-Battery |
| Range | SEMITRACTION BATTERY |
| Application | Motorhomes and caravans |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 80 Ah |
| Length | 278 mm |
| Width | 175 mm |
| Height | 190 mm |
| Weight | 19.5 kg |
| Polarity | Positive terminal on the right |
| Terminal type | A-Pole |

## Quick description

Q-Battery 12SEM-80: motorhome battery with 12 V and 80 Ah, measuring 278 × 175 × 190 mm, with the positive terminal on the right.

## Description

## The Q-Battery 12SEM-80 at a glance

The Q-Battery 12SEM-80 is made for the living area of a motorhome. With 80 Ah, the 12SEM-80 runs the leisure loads for several nights depending on use.
The 12SEM-80 belongs to the Q-Battery SEMITRACTION BATTERY range. [See all Q-Battery batteries](https://bateriasonline.es/en/q-battery-batteries)

## Equivalents and alternatives to the Q-Battery 12SEM-80

No other reference in the catalogue fully matches the dimensions and polarity of the 12SEM-80; you will find the closest ones among our [leisure batteries for motorhomes and caravans](https://bateriasonline.es/en/leisure-batteries-motorhome-caravan).

## Q-Battery 12SEM-80 vs 12SEM-60 and 12SEM-105

The real differences between the 12SEM-80 and the closest Q-Battery models:

| Model | Capacity | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|
| Q-Battery 12SEM-80 (this one) | 80 Ah | 278 × 175 × 190 | right | 19.5 kg |
| Q-Battery 12SEM-60 | 60 Ah | 246 × 175 × 190 | right | 17 kg |
| Q-Battery 12SEM-105 | 105 Ah | 353 × 175 × 190 | right | 25 kg |

- Q-Battery 12SEM-60: 20 Ah less, a different case (246 × 175 × 190 mm).
- Q-Battery 12SEM-105: 25 Ah more, a different case (353 × 175 × 190 mm).

## Inside the 12SEM-80: lead-acid technology

Inside, the 12SEM-80 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.

## What to look at before buying the 12SEM-80

- Measure the space: the 12SEM-80 takes up 278 × 175 × 190 mm.
- With the terminals facing you, the positive terminal of the 12SEM-80 is on the right.
- Capacity of the 12SEM-80: 80 Ah; the same as your current battery or slightly more is fine.

## Q-Battery 12SEM-80 codes and part numbers

Shops, garages and catalogues identify the 12SEM-80 with these codes:

| Commercial reference | 12SEM-80 |
|---|---|
| Terminal type | A-Pole |
| Not to be confused with | Q-Battery 12SEM-60 (60 Ah), Q-Battery 12SEM-180 (180 Ah) |

## Frequently asked questions about the Q-Battery 12SEM-80

### Q-Battery 12SEM-80 or 12SEM-60?

Compared with the 12SEM-80, the Q-Battery 12SEM-60 has 20 Ah less. With 80 Ah, the 12SEM-80 runs longer between charges than the 12SEM-60 (60 Ah). Mind the space: the 12SEM-60 measures 246 × 175 × 190 mm.

### How much does the Q-Battery 12SEM-80 weigh?

The 12SEM-80 weighs 19.5 kg. For reference, the Q-Battery 12SEM-60 (60 Ah) weighs 17 kg.

### Which side is the positive terminal on the Q-Battery 12SEM-80?

The 12SEM-80 has the positive terminal on the right, looking at the battery from its long side with the terminals closest to you.

### Which charger does the Q-Battery 12SEM-80 need?

An automatic lead-acid charger with cut-off or maintenance mode, rated at 10 to 20% of its capacity in amps. If it is a vented type, check the electrolyte level and top up only with distilled water.

## Other options if you are unsure about the 12SEM-80

- [All leisure batteries for motorhomes and caravans](https://bateriasonline.es/en/leisure-batteries-motorhome-caravan)
- [The whole Q-Battery range](https://bateriasonline.es/en/q-battery-batteries)

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