# Q-Battery 12SEM-225 · Motorhome battery 12V 225Ah

![Q-Battery 12SEM-225 · Motorhome battery 12V 225Ah](https://bateriasonline.es/3471-home_default/q-battery-12sem-225.jpg)

> Q-Battery 12SEM-225: 225 Ah motorhome battery, 518×276×242 mm. VAT included, shipping cost shown before you pay, 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-225
- **Language**: en
- **Brand**: Q-Battery
- **Reference**: BOL-QBATTERY-12SEM-225
- **MPN**: 12SEM-225
- **Price**: 502,45 € (VAT incl., Spain)
- **Last updated**: 2026-11-07

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Q-Battery |
| Range | SEMITRACTION BATTERY |
| Application | Motorhomes and caravans |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 225 Ah |
| Length | 518 mm |
| Width | 276 mm |
| Height | 242 mm |
| Weight | 62 kg |
| Terminal layout | 3 |
| Terminal type | A-Pole |

## Quick description

The Q-Battery 12SEM-225 is a motorhome battery with 12 V and 225 Ah, measuring 518 × 276 × 242 mm.

## Description

## Where the Q-Battery 12SEM-225 fits

The Q-Battery 12SEM-225 is made for the living area of a motorhome. Unlike the starter battery, it takes slow, deep discharges night after night.
The 12SEM-225 belongs to the Q-Battery SEMITRACTION BATTERY range. [More Q-Battery batteries](https://bateriasonline.es/en/q-battery-batteries)

## Equivalents and alternatives to the Q-Battery 12SEM-225

No other reference in the catalogue fully matches the dimensions and polarity of the 12SEM-225; 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-225 vs 12SEM-180 and 12DC-150: which one to choose?

Torn between the 12SEM-225 and another similar Q-Battery? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Q-Battery 12SEM-225 (this one) | 225 Ah | 518 × 276 × 242 | 62 kg |
| Q-Battery 12SEM-180 | 180 Ah | 513 × 224 × 225 | 48.6 kg |
| Q-Battery 12DC-150 | 150 Ah | 328 × 180 × 276 | 37.5 kg |

- Q-Battery 12SEM-180: 45 Ah less, a different case (513 × 224 × 225 mm).
- Q-Battery 12DC-150: 75 Ah less, a different case (328 × 180 × 276 mm).

## Lead-acid technology in the 12SEM-225

Inside, the 12SEM-225 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-225

- Length, width and height of the 12SEM-225: 518 × 276 × 242 mm.
- Your current battery should say about 225 Ah; a little more is also fine.

## Q-Battery 12SEM-225 codes and part numbers

Shops, garages and catalogues identify the 12SEM-225 with these codes:

| Commercial reference | 12SEM-225 |
|---|---|
| Terminal type | A-Pole |

## Frequently asked questions about the Q-Battery 12SEM-225

### Q-Battery 12SEM-225 or 12SEM-180?

Compared with the 12SEM-225, the Q-Battery 12SEM-180 has 45 Ah less. With 225 Ah, the 12SEM-225 runs longer between charges than the 12SEM-180 (180 Ah). Mind the space: the 12SEM-180 measures 513 × 224 × 225 mm.

### How much does the Q-Battery 12SEM-225 weigh?

The 12SEM-225 weighs 62 kg. For reference, the Q-Battery 12SEM-180 (180 Ah) weighs 48.6 kg.

### What are the dimensions and weight of the Q-Battery 12SEM-225?

It measures 518 × 276 × 242 mm and weighs 62 kg. Compare these figures with the tray and the hold-down clamp before ordering.

## Other options if you are unsure about the 12SEM-225

- [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)
- [Q-Battery 6SEM-230](https://bateriasonline.es/en/q-battery-6sem-230) · 230 Ah, 242×190×274 mm
- [Kronobat DP-190-EFB](https://bateriasonline.es/en/kronobat-dp-190-efb) · 190 Ah, 1,050 A, 513×223×223 mm
- [Kronobat DP-240-EFB](https://bateriasonline.es/en/kronobat-dp-240-efb) · 240 Ah, 1,050 A, 518×276×242 mm

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