# Fulbat FP12-18FR · UPS battery 12V 18Ah

![Fulbat FP12-18FR · UPS battery 12V 18Ah](https://bateriasonline.es/779-home_default/fulbat-fp12-18fr.jpg)

> Fulbat FP12-18FR: 18 Ah UPS battery, 181.5×76.5×167.5 mm, AGM. Equivalent to Long WP18-12NSHR and Long WP18-12SHR. Ask for a no-obligation quote.

**Category:** [UPS batteries](https://bateriasonline.es/en/ups-batteries) → [Fulbat](https://bateriasonline.es/en/fulbat-batteries)

- **Canonical URL**: https://bateriasonline.es/en/fulbat-fp12-18fr
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-FP12-18FR
- **MPN**: FP12-18FR
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT FP General Purpose |
| Application | UPS systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 18 Ah |
| Length | 181.5 mm |
| Width | 76.5 mm |
| Height | 167.5 mm |
| Weight | 5.35 kg |
| Terminal layout | 2 |
| Terminal type | T12 |

## Quick description

The Fulbat FP12-18FR is an UPS battery with 12 V and 18 Ah, measuring 181.5 × 76.5 × 167.5 mm.

## Description

## Who the Fulbat FP12-18FR is for

The Fulbat FP12-18FR 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. The FP12-18FR spends most of its life on float charge, waiting for a power cut.
The FP12-18FR belongs to the Fulbat FULBAT FP General Purpose range. [See all Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Equivalents and alternatives to the Fulbat FP12-18FR

As the FP12-18FR 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 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 |
| Ritar RT12180 | AGM | 18 Ah | 181 × 77 × 167 |
| Q-Battery 12LS-18 | AGM | 18 Ah | 181 × 77 × 167 |
| Long WPS17-12 | AGM | 17 Ah | 181 × 76 × 167 |

## Fulbat FP12-18FR vs FP12-20 and FP12-24H

How the FP12-18FR compares with Fulbat batteries of similar size and capacity:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Fulbat FP12-18FR (this one) | 18 Ah | 181.5 × 76.5 × 167.5 | 5.35 kg |
| Fulbat FP12-20 | 20 Ah | 181.5 × 77 × 167.5 | 5.65 kg |
| Fulbat FP12-24H | 24 Ah | 164 × 125 × 174 | 8.45 kg |

- Fulbat FP12-20: 2 Ah more, the same dimensions.
- Fulbat FP12-24H: 6 Ah more, a different case (164 × 125 × 174 mm).

## AGM technology in the FP12-18FR

The FP12-18FR 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.

## What to look at before buying the FP12-18FR

- Measure the space: the FP12-18FR takes up 181.5 × 76.5 × 167.5 mm.
- Capacity of the FP12-18FR: 18 Ah; the same as your current battery or slightly more is fine.

## Fulbat FP12-18FR codes and part numbers

The FP12-18FR is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | FP12-18FR |
|---|---|
| Terminal type | T12 |
| Not to be confused with | Fulbat FP12-0.8FR (0.8 Ah), Fulbat FP12-1.2FR (1.2 Ah), Fulbat FP12-12FR (12 Ah) |

## Frequently asked questions about the Fulbat FP12-18FR

### Fulbat FP12-18FR or FP12-20?

Compared with the FP12-18FR, the Fulbat FP12-20 has 2 Ah more. With 20 Ah, the FP12-20 runs longer between charges than the FP12-18FR (18 Ah). Both measure 181.5 × 76.5 × 167.5 mm, so they fit the same tray.

### How much does the Fulbat FP12-18FR weigh?

The FP12-18FR weighs 5.35 kg. For reference, the Fulbat FP12-20 (20 Ah) weighs 5.65 kg.

### Which battery is equivalent to the Fulbat FP12-18FR?

Only other AGM batteries with its dimensions and polarity: Long WP18-12NSHR, Long WP18-12SHR and Long WPL18-12SHR. Neither an EFB nor a conventional battery replaces the FP12-18FR.

### 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.

## Keep comparing: alternatives to the FP12-18FR

- [More uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [Full Fulbat catalogue](https://bateriasonline.es/en/fulbat-batteries)
- [Long WP18-12NSHR](https://bateriasonline.es/en/long-wp18-12nshr) · 18 Ah, 181×76×167 mm
- [Long WP18-12SHR](https://bateriasonline.es/en/long-wp18-12shr) · 18 Ah, 181×76×167 mm

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