# Q-Battery 12LSX-28 · UPS battery 12V 12Ah

![Q-Battery 12LSX-28 · UPS battery 12V 12Ah](https://bateriasonline.es/3760-home_default/q-battery-12lsx-28.jpg)

> Q-Battery 12LSX-28: 12 Ah UPS battery, 151×98×95 mm, AGM. Equivalent to Long WP1251W and Long WPL12-12.

**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-12lsx-28
- **Language**: en
- **Brand**: Q-Battery
- **Reference**: BOL-QBATTERY-12LSX-28
- **EAN**: 4250889611842
- **MPN**: 12LSX-28
- **Price**: 105,64 € (VAT incl., Spain)
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Q-Battery |
| Range | AGM LONG LIFE |
| Application | UPS systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 12 Ah |
| Length | 151 mm |
| Width | 98 mm |
| Height | 95 mm |
| Weight | 3.76 kg |
| Terminal type | F2 (6,35 mm) |

## Quick description

The Q-Battery 12LSX-28 is an UPS battery with 12 V and 12 Ah, measuring 151 × 98 × 95 mm.

## Description

## The Q-Battery 12LSX-28 at a glance

The Q-Battery 12LSX-28 replaces the original batteries in a UPS. Before ordering the 12LSX-28, check the terminal type and terminal orientation in your UPS.
The 12LSX-28 belongs to the Q-Battery AGM LONG LIFE range. [More Q-Battery batteries](https://bateriasonline.es/en/q-battery-batteries)

## Equivalents and alternatives to the Q-Battery 12LSX-28

Other AGM batteries that fit the 12LSX-28's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Long WP1251W | AGM | 12 Ah | 151 × 98 × 98 |
| Long WPL12-12 | AGM | 12 Ah | 151 × 98 × 98 |
| Long WPS12-12 | AGM | 12 Ah | 151 × 98 × 98 |
| Q-Battery 12LS-12 F1 | AGM | 12 Ah | 151 × 98 × 95 |
| Q-Battery 12LS-12 F2 | AGM | 12 Ah | 151 × 98 × 95 |

## Q-Battery 12LSX-28 vs 12LSX-24 and 12LCP-9

How the 12LSX-28 compares with Q-Battery batteries of similar size and capacity:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Q-Battery 12LSX-28 (this one) | 12 Ah | 151 × 98 × 95 | 3.76 kg |
| Q-Battery 12LSX-24 | 8.8 Ah | 151 × 65 × 94 | 2.6 kg |
| Q-Battery 12LCP-9 | 9 Ah | 151 × 65 × 94 | 2.55 kg |

- Q-Battery 12LSX-24: 3.20 Ah less, a different case (151 × 65 × 94 mm).
- Q-Battery 12LCP-9: 3 Ah less, a different case (151 × 65 × 94 mm).

## AGM technology in the 12LSX-28

Inside, the 12LSX-28 has glass fibre separators (AGM) that hold the electrolyte. The 12LSX-28 needs a charger with an AGM mode that does not exceed 14.7 V.

## Before ordering the 12LSX-28, check this

- Length, width and height of the 12LSX-28: 151 × 98 × 95 mm.
- With 12 Ah, the 12LSX-28 replaces an original battery of that capacity or slightly less.

## Part numbers and codes for the Q-Battery 12LSX-28

This is how the Q-Battery 12LSX-28 appears on the label and in parts catalogues:

| Commercial reference | 12LSX-28 |
|---|---|
| EAN | 4250889611842 |
| Terminal type | F2 (6,35mm) |
| Not to be confused with | Q-Battery 12LSX-24 (8.8 Ah) |

## Frequently asked questions about the Q-Battery 12LSX-28

### 12LSX-28 or 12LSX-24: which one suits me?

Compared with the 12LSX-28, the Q-Battery 12LSX-24 has 3.20 Ah less. With 12 Ah, the 12LSX-28 runs longer between charges than the 12LSX-24 (8.8 Ah). Mind the space: the 12LSX-24 measures 151 × 65 × 94 mm.

### How much does the Q-Battery 12LSX-28 weigh?

3.76 kg, with 12 Ah of capacity. For reference, the Q-Battery 12LSX-24 (8.8 Ah) weighs 2.6 kg.

### Which battery is equivalent to the Q-Battery 12LSX-28?

Only other AGM batteries with its dimensions and polarity: Long WP1251W, Long WPL12-12 and Long WPS12-12. Neither an EFB nor a conventional battery replaces the 12LSX-28.

### Which charger does the Q-Battery 12LSX-28 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.

## More batteries to compare with the 12LSX-28

- [All uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [Full Q-Battery catalogue](https://bateriasonline.es/en/q-battery-batteries)
- [Long WP1251W](https://bateriasonline.es/en/long-wp1251w) · 12 Ah, 151×98×98 mm
- [Long WPL12-12](https://bateriasonline.es/en/long-wpl12-12) · 12 Ah, 151×98×98 mm

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