# Fulbat FP12-5.4 · UPS battery 12V 5.4Ah

![Fulbat FP12-5.4 · UPS battery 12V 5.4Ah](https://bateriasonline.es/670-home_default/fulbat-fp12-5-4.jpg)

> Fulbat FP12-5.4: 5.4 Ah UPS battery, 90×70×107 mm, positive terminal on the left, AGM. Equivalent to Long WP5-12 and Long WP5-12SHR.

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

- **Canonical URL**: https://bateriasonline.es/en/fulbat-fp12-5-4
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-FP12-5.4
- **MPN**: FP12-5.4
- **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 | 5.4 Ah |
| Length | 90 mm |
| Width | 70 mm |
| Height | 107 mm |
| Weight | 1.8 kg |
| Polarity | Positive terminal on the left |
| Terminal type | T2 |

## Quick description

Fulbat FP12-5.4: UPS battery with 12 V and 5.4 Ah, measuring 90 × 70 × 107 mm, with the positive terminal on the left.

## Description

## Who the Fulbat FP12-5.4 is for

The Fulbat FP12-5.4 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 FP12-5.4 belongs to the Fulbat FULBAT FP General Purpose range. [The full range of Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Inside the FP12-5.4: AGM technology

The FP12-5.4 is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the FP12-5.4 can be fitted in the boot or under a seat with no risk of spills.

## Fulbat FP12-5.4 vs FP12-4.5 and FP12-5.5: which one to choose?

The real differences between the FP12-5.4 and the closest Fulbat models:

| Model | Capacity | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|
| Fulbat FP12-5.4 (this one) | 5.4 Ah | 90 × 70 × 107 | left | 1.8 kg |
| Fulbat FP12-4.5 | 4.5 Ah | 90 × 70 × 107 | left | 1.39 kg |
| Fulbat FP12-5.5 | 5.5 Ah | 151 × 53 × 99 | – | 1.73 kg |

- Fulbat FP12-4.5: 0.90 Ah less, the same dimensions.
- Fulbat FP12-5.5: 0.10 Ah more, a different case (151 × 53 × 99 mm).

## Equivalents and alternatives to the Fulbat FP12-5.4

As the FP12-5.4 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 WP5-12 | AGM | 5 Ah | 90 × 70 × 107 |
| Long WP5-12SHR | AGM | 5 Ah | 90 × 70 × 107 |
| Long WPL5-12 | AGM | 5 Ah | 90 × 70 × 107 |
| Long WPS5-12 | AGM | 5 Ah | 90 × 70 × 107 |
| Long WXL1225W | AGM | 5 Ah | 90 × 70 × 107 |
| Ritar RT1250 | AGM | 5 Ah | 90 × 70 × 107 |

## Fulbat FP12-5.4 codes and part numbers

Look for any of these FP12-5.4 codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | FP12-5.4 |
|---|---|
| Terminal type | T2 |
| Not to be confused with | Fulbat FP12-5 (5.4 Ah), Fulbat FP12-5.5 (5.5 Ah), Fulbat FP12-24 (24 Ah) |

## Before ordering the FP12-5.4, check this

- Capacity of the FP12-5.4: 5.4 Ah; the same as your current battery or slightly more is fine.
- With the terminals facing you, the positive terminal of the FP12-5.4 is on the left.
- Length, width and height of the FP12-5.4: 90 × 70 × 107 mm.

## Frequently asked questions about the Fulbat FP12-5.4

### Fulbat FP12-5.4 or FP12-4.5?

Compared with the FP12-5.4, the Fulbat FP12-4.5 has 0.90 Ah less. With 5.4 Ah, the FP12-5.4 runs longer between charges than the FP12-4.5 (4.5 Ah). Both measure 90 × 70 × 107 mm, so they fit the same tray.

### How much does the Fulbat FP12-5.4 weigh?

The FP12-5.4 weighs 1.8 kg. For reference, the Fulbat FP12-4.5 (4.5 Ah) weighs 1.39 kg.

### Which battery is equivalent to the Fulbat FP12-5.4?

Only other AGM batteries with its dimensions and polarity: Long WP5-12, Long WP5-12SHR and Long WPL5-12. Neither an EFB nor a conventional battery replaces the FP12-5.4.

### Which side is the positive terminal on the Fulbat FP12-5.4?

The FP12-5.4 has the positive terminal on the left, looking at the battery from its long side with the terminals closest to you.

## More batteries to compare with the FP12-5.4

- [Other uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [Full Fulbat catalogue](https://bateriasonline.es/en/fulbat-batteries)
- [Long WP5-12](https://bateriasonline.es/en/long-wp5-12) · 5 Ah, 90×70×107 mm
- [Long WP5-12SHR](https://bateriasonline.es/en/long-wp5-12shr) · 5 Ah, 90×70×107 mm

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