# Q-Battery 12LS-45 · UPS battery 12V 45Ah

![Q-Battery 12LS-45 · UPS battery 12V 45Ah](https://bateriasonline.es/3732-home_default/q-battery-12ls-45.jpg)

> Q-Battery 12LS-45: 45 Ah UPS battery, 197×165×170 mm, AGM. Equivalent to Long WPS45-12 and Long WPS45-12N.

**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-45
- **Language**: en
- **Brand**: Q-Battery
- **Reference**: BOL-QBATTERY-12LS-45
- **MPN**: 12LS-45
- **Price**: 177,97 € (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 | 45 Ah |
| Length | 197 mm |
| Width | 165 mm |
| Height | 170 mm |
| Weight | 14.5 kg |
| Terminal type | F11 (M6) |

## Quick description

Q-Battery 12LS-45: UPS battery with 12 V and 45 Ah, measuring 197 × 165 × 170 mm.

## Description

## Where the Q-Battery 12LS-45 fits

The Q-Battery 12LS-45 replaces the original batteries in a UPS. Before ordering the 12LS-45, check the terminal type and terminal orientation in your UPS.
The 12LS-45 belongs to the Q-Battery AGM STANDARD range. [See all Q-Battery batteries](https://bateriasonline.es/en/q-battery-batteries)

## Equivalents and alternatives to the Q-Battery 12LS-45

Other AGM batteries that fit the 12LS-45's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Long WPS45-12 | AGM | 45 Ah | 197.7 × 166 × 171 |
| Long WPS45-12N | AGM | 45 Ah | 197.7 × 166 × 171 |
| Long WPL45-12 | AGM | 45 Ah | 199 × 166 × 171 |
| Long WXL12150W | AGM | 45 Ah | 199 × 166 × 171 |
| Long WPL45-12N | AGM | 45 Ah | 199 × 166 × 171 |
| Long WXL12150WN | AGM | 45 Ah | 199 × 166 × 171 |

## Q-Battery 12LS-45 vs 12LS-38 and 12LS-33

The real differences between the 12LS-45 and the closest Q-Battery models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Q-Battery 12LS-45 (this one) | 45 Ah | 197 × 165 × 170 | 14.5 kg |
| Q-Battery 12LS-38 | 38 Ah | 197 × 165 × 170 | 13.2 kg |
| Q-Battery 12LS-33 | 35 Ah | 195 × 130 × 159 | 10.6 kg |

- Q-Battery 12LS-38: 7 Ah less, the same dimensions.
- Q-Battery 12LS-33: 10 Ah less, a different case (195 × 130 × 159 mm).

## AGM technology in the 12LS-45

Inside, the 12LS-45 has glass fibre separators (AGM) that hold the electrolyte. The 12LS-45 needs a charger with an AGM mode that does not exceed 14.7 V.

## Before ordering the 12LS-45, check this

- Measure the space: the 12LS-45 takes up 197 × 165 × 170 mm.
- Your current battery should say about 45 Ah; a little more is also fine.

## Part numbers and codes for the Q-Battery 12LS-45

This is how the Q-Battery 12LS-45 appears on the label and in parts catalogues:

| Commercial reference | 12LS-45 |
|---|---|
| Terminal type | F11 (M6) |
| Not to be confused with | Q-Battery 12LS-55 (55 Ah), Q-Battery 12LS-65 (65 Ah), Q-Battery 12LS-75 (78 Ah) |

## Frequently asked questions about the Q-Battery 12LS-45

### 12LS-45 or 12LS-38: which one suits me?

Compared with the 12LS-45, the Q-Battery 12LS-38 has 7 Ah less. With 45 Ah, the 12LS-45 runs longer between charges than the 12LS-38 (38 Ah). Both measure 197 × 165 × 170 mm, so they fit the same tray.

### How much does the Q-Battery 12LS-45 weigh?

14.5 kg, with 45 Ah of capacity. For reference, the Q-Battery 12LS-38 (38 Ah) weighs 13.2 kg.

### Which battery is equivalent to the Q-Battery 12LS-45?

Only other AGM batteries with its dimensions and polarity: Long WPS45-12, Long WPS45-12N and Long WPL45-12. Neither an EFB nor a conventional battery replaces the 12LS-45.

### What is the difference between F1 and F2 terminals?

The tab width: F1 is 4.8 mm and F2 is 6.35 mm. Most UPS units use F2; check your unit's connector before ordering.

## More batteries to compare with the 12LS-45

- [More uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [The whole Q-Battery range](https://bateriasonline.es/en/q-battery-batteries)
- [Long WPS45-12](https://bateriasonline.es/en/long-wps45-12) · 45 Ah, 197.7×166×171 mm
- [Long WPS45-12N](https://bateriasonline.es/en/long-wps45-12n) · 45 Ah, 197.7×166×171 mm

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