# Q-Battery 12LS-18 · UPS battery 12V 18Ah

![Q-Battery 12LS-18 · UPS battery 12V 18Ah](https://bateriasonline.es/3721-home_default/q-battery-12ls-18.jpg)

> Q-Battery 12LS-18: 18 Ah UPS battery, 181×77×167 mm, AGM. Equivalent to Ritar RT12180 and Long WP18-12NSHR.

**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-18
- **Language**: en
- **Brand**: Q-Battery
- **Reference**: BOL-QBATTERY-12LS-18
- **MPN**: 12LS-18
- **Price**: 71,34 € (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 | 18 Ah |
| Length | 181 mm |
| Width | 77 mm |
| Height | 167 mm |
| Weight | 5.7 kg |
| Terminal type | F3 (flag) |

## Quick description

The Q-Battery 12LS-18 is an UPS battery with 12 V and 18 Ah, measuring 181 × 77 × 167 mm.

## Description

## Where the Q-Battery 12LS-18 fits

The Q-Battery 12LS-18 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-18 belongs to the Q-Battery AGM STANDARD range. [The full range of Q-Battery batteries](https://bateriasonline.es/en/q-battery-batteries)

## Inside the 12LS-18: AGM technology

The 12LS-18 is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the 12LS-18 can be fitted in the boot or under a seat with no risk of spills.

## Q-Battery 12LS-18 vs 12LS-17 and 12LSX-7 F1: which one to choose?

Torn between the 12LS-18 and another similar Q-Battery? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Q-Battery 12LS-18 (this one) | 18 Ah | 181 × 77 × 167 | 5.7 kg |
| Q-Battery 12LS-17 | 17 Ah | 181 × 77 × 167 | 5.7 kg |
| Q-Battery 12LSX-7 F1 | 17 Ah | 181 × 77 × 167 | 5.5 kg |

- Q-Battery 12LS-17: 1 Ah less, the same dimensions.
- Q-Battery 12LSX-7 F1: 1 Ah less, the same dimensions.

## Equivalents and alternatives to the Q-Battery 12LS-18

Other AGM batteries that fit the 12LS-18's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Ritar RT12180 | AGM | 18 Ah | 181 × 77 × 167 |
| Long WP18-12NSHR | AGM | 18 Ah | 181 × 76 × 167 |
| Long WP18-12SHR | AGM | 18 Ah | 181 × 76 × 167 |
| Long WPL18-12SHR | AGM | 18 Ah | 181 × 76 × 167 |
| Fulbat FP12-18 | AGM | 18 Ah | 181.5 × 76.5 × 167.5 |
| Fulbat FP12-18FR | AGM | 18 Ah | 181.5 × 76.5 × 167.5 |

## Part numbers and codes for the Q-Battery 12LS-18

Look for any of these 12LS-18 codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | 12LS-18 |
|---|---|
| Terminal type | F3 (flag) |
| Not to be confused with | Q-Battery 12LS-1.2 (1.2 Ah), Q-Battery 12LS-17 (17 Ah), Q-Battery 12LS-38 (38 Ah) |

## What to look at before buying the 12LS-18

- Capacity of the 12LS-18: 18 Ah; the same as your current battery or slightly more is fine.
- Length, width and height of the 12LS-18: 181 × 77 × 167 mm.

## Frequently asked questions about the Q-Battery 12LS-18

### 12LS-18 or 12LS-17: which one suits me?

Compared with the 12LS-18, the Q-Battery 12LS-17 has 1 Ah less. With 18 Ah, the 12LS-18 runs longer between charges than the 12LS-17 (17 Ah). Both measure 181 × 77 × 167 mm, so they fit the same tray.

### How much does the Q-Battery 12LS-18 weigh?

5.7 kg, with 18 Ah of capacity. For reference, the Q-Battery 12LS-17 (17 Ah) weighs 5.7 kg.

### Which battery is equivalent to the Q-Battery 12LS-18?

Only other AGM batteries with its dimensions and polarity: Ritar RT12180, Long WP18-12NSHR and Long WP18-12SHR. Neither an EFB nor a conventional battery replaces the 12LS-18.

### Which charger does the Q-Battery 12LS-18 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-18

- [Other uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [More Q-Battery models](https://bateriasonline.es/en/q-battery-batteries)
- [Ritar RT12180](https://bateriasonline.es/en/ritar-rt12180) · 18 Ah, 181×77×167 mm
- [Long WP18-12NSHR](https://bateriasonline.es/en/long-wp18-12nshr) · 18 Ah, 181×76×167 mm

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