# Q-Battery 12LSX-9 · UPS battery 12V 28Ah

![Q-Battery 12LSX-9 · UPS battery 12V 28Ah](https://bateriasonline.es/3453-home_default/q-battery-12lsx-9.jpg)

> Q-Battery 12LSX-9: 28 Ah UPS battery, 165×125×175 mm, AGM. Equivalent to Ritar RT12280S and Long WPL28-12T.

**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-9
- **Language**: en
- **Brand**: Q-Battery
- **Reference**: BOL-QBATTERY-12LSX-9
- **MPN**: 12LSX-9
- **Price**: 36,16 € (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 | 28 Ah |
| Length | 165 mm |
| Width | 125 mm |
| Height | 175 mm |
| Weight | 9.3 kg |
| Terminal type | F13 (M5) |

## Quick description

The Q-Battery 12LSX-9 is an UPS battery with 12 V and 28 Ah, measuring 165 × 125 × 175 mm.

## Description

## Who the Q-Battery 12LSX-9 is for

The Q-Battery 12LSX-9 replaces the original batteries in a UPS. The 12LSX-9 spends most of its life on float charge, waiting for a power cut.
The 12LSX-9 belongs to the Q-Battery AGM LONG LIFE range. [The full range of Q-Battery batteries](https://bateriasonline.es/en/q-battery-batteries)

## Equivalents and alternatives to the Q-Battery 12LSX-9

Other AGM batteries that fit the 12LSX-9's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Ritar RT12280S | AGM | 28 Ah | 165 × 126 × 174 |
| Long WPL28-12T | AGM | 28 Ah | 166 × 125.5 × 176 |
| Long WPL28-12TM | AGM | 28 Ah | 166 × 125.5 × 176 |
| Long WPL28-12TN | AGM | 28 Ah | 166 × 125.5 × 176 |

## Q-Battery 12LSX-9 vs 12LS-33 and 12LSX-7.5 F2: differences

Torn between the 12LSX-9 and another similar Q-Battery? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Q-Battery 12LSX-9 (this one) | 28 Ah | 165 × 125 × 175 | 9.3 kg |
| Q-Battery 12LS-33 | 35 Ah | 195 × 130 × 159 | 10.6 kg |
| Q-Battery 12LSX-7.5 F2 | 24 Ah | 166 × 175 × 125 | 8.1 kg |

- Q-Battery 12LS-33: 7 Ah more, a different case (195 × 130 × 159 mm).
- Q-Battery 12LSX-7.5 F2: 4 Ah less, a different case (166 × 175 × 125 mm).

## Inside the 12LSX-9: AGM technology

Inside, the 12LSX-9 has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Check this before ordering the Q-Battery 12LSX-9

- Measure the space: the 12LSX-9 takes up 165 × 125 × 175 mm.
- Your current battery should say about 28 Ah; a little more is also fine.

## Part numbers and codes for the Q-Battery 12LSX-9

Shops, garages and catalogues identify the 12LSX-9 with these codes:

| Commercial reference | 12LSX-9 |
|---|---|
| Terminal type | F13 (M5) |
| Not to be confused with | Q-Battery 12LS-2.9 (2.9 Ah) |

## Frequently asked questions about the Q-Battery 12LSX-9

### 12LSX-9 or 12LS-33: which one suits me?

Compared with the 12LSX-9, the Q-Battery 12LS-33 has 7 Ah more. With 35 Ah, the 12LS-33 runs longer between charges than the 12LSX-9 (28 Ah). Mind the space: the 12LS-33 measures 195 × 130 × 159 mm.

### How much does the Q-Battery 12LSX-9 weigh?

9.3 kg, with 28 Ah of capacity. For reference, the Q-Battery 12LS-33 (35 Ah) weighs 10.6 kg.

### Which battery is equivalent to the Q-Battery 12LSX-9?

Only other AGM batteries with its dimensions and polarity: Ritar RT12280S, Long WPL28-12T and Long WPL28-12TM. Neither an EFB nor a conventional battery replaces the 12LSX-9.

## Keep comparing: alternatives to the 12LSX-9

- [All uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [More Q-Battery models](https://bateriasonline.es/en/q-battery-batteries)
- [Ritar RT12280S](https://bateriasonline.es/en/ritar-rt12280s) · 28 Ah, 165×126×174 mm
- [Long WPL28-12T](https://bateriasonline.es/en/long-wpl28-12t) · 28 Ah, 166×125.5×176 mm

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