# Q-Battery 12LS-120 M8 · UPS battery 12V 126Ah

![Q-Battery 12LS-120 M8 · UPS battery 12V 126Ah](https://bateriasonline.es/3748-home_default/q-battery-12ls-120-m8.jpg)

> Q-Battery 12LS-120 M8: 126 Ah UPS battery, 409×176×222 mm, AGM. Equivalent to Long WPL125-12RN and Fulbat FP12-120.

**Category:** [UPS batteries](https://bateriasonline.es/en/ups-batteries) → [Q-Battery](https://bateriasonline.es/en/q-battery-batteries)

- **Canonical URL**: https://bateriasonline.es/en/q-battery-12ls-120-m8
- **Language**: en
- **Brand**: Q-Battery
- **Reference**: BOL-QBATTERY-12LS-120 M8
- **MPN**: 12LS-120 M8
- **Price**: 475,25 € (VAT incl., Spain)
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Q-Battery |
| Range | AGM STANDARD |
| Application | UPS systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 126 Ah |
| Length | 409 mm |
| Width | 176 mm |
| Height | 222 mm |
| Weight | 32 kg |
| Terminal type | F12 (M8) |

## Quick description

Q-Battery 12LS-120 M8: UPS battery with 12 V and 126 Ah, measuring 409 × 176 × 222 mm.

## Description

## Where the Q-Battery 12LS-120 M8 fits

The Q-Battery 12LS-120 M8 is a VRLA AGM battery for UPS and uninterruptible power systems: it stays charged for years waiting for an outage and delivers the energy instantly when it comes. Check dimensions, terminal type (F1 or F2) and capacity so it fits the unit.
The 12LS-120 M8 belongs to the Q-Battery AGM STANDARD range. [The full range of Q-Battery batteries](https://bateriasonline.es/en/q-battery-batteries)

## Equivalents and alternatives to the Q-Battery 12LS-120 M8

As the 12LS-120 M8 is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Long WPL125-12RN | AGM | 125 Ah | 408 × 177 × 224 |
| Fulbat FP12-120 | AGM | 124.8 Ah | 408 × 177 × 225 |
| Long HTP120-12N | AGM | 120 Ah | 408 × 177 × 224 |
| Long WPL120-12N | AGM | 120 Ah | 408 × 177 × 224 |
| Long WPL120-12RN | AGM | 120 Ah | 408 × 177 × 224 |

## Q-Battery 12LS-120 M8 vs 12LS-120S and 12LS-100

The real differences between the 12LS-120 M8 and the closest Q-Battery models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Q-Battery 12LS-120 M8 (this one) | 126 Ah | 409 × 176 × 222 | 32 kg |
| Q-Battery 12LS-120S | 118 Ah | 328 × 177 × 222 | 32 kg |
| Q-Battery 12LS-100 | 107 Ah | 328 × 172 × 222 | 30 kg |

- Q-Battery 12LS-120S: 8 Ah less, a different case (328 × 177 × 222 mm).
- Q-Battery 12LS-100: 19 Ah less, a different case (328 × 172 × 222 mm).

## What it means that the 12LS-120 M8 is AGM

The 12LS-120 M8 is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. It withstands many more cycles than a conventional lead battery, at the cost of being more sensitive to overcharging.

## Before ordering the 12LS-120 M8, check this

- Length, width and height of the 12LS-120 M8: 409 × 176 × 222 mm.
- Your current battery should say about 126 Ah; a little more is also fine.

## Q-Battery 12LS-120 M8 codes and part numbers

The 12LS-120 M8 is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | 12LS-120 M8 |
|---|---|
| Terminal type | F12 (M8) |

## Frequently asked questions about the Q-Battery 12LS-120 M8

### Q-Battery 12LS-120 M8 or 12LS-120S?

Compared with the 12LS-120 M8, the Q-Battery 12LS-120S has 8 Ah less. With 126 Ah, the 12LS-120 M8 runs longer between charges than the 12LS-120S (118 Ah). Mind the space: the 12LS-120S measures 328 × 177 × 222 mm.

### How much does the Q-Battery 12LS-120 M8 weigh?

The 12LS-120 M8 weighs 32 kg. For reference, the Q-Battery 12LS-120S (118 Ah) weighs 32 kg.

### Which battery is equivalent to the Q-Battery 12LS-120 M8?

Only other AGM batteries with its dimensions and polarity: Long WPL125-12RN, Fulbat FP12-120 and Long HTP120-12N. Neither an EFB nor a conventional battery replaces the 12LS-120 M8.

### Which charger does the Q-Battery 12LS-120 M8 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.

## Keep comparing: alternatives to the 12LS-120 M8

- [Other uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [Full Q-Battery catalogue](https://bateriasonline.es/en/q-battery-batteries)
- [Long WPL125-12RN](https://bateriasonline.es/en/long-wpl125-12rn) · 125 Ah, 408×177×224 mm
- [Fulbat FP12-120](https://bateriasonline.es/en/fulbat-fp12-120) · 124.8 Ah, 408×177×225 mm

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