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

![Fulbat FP12-12FR · UPS battery 12V 12Ah](https://bateriasonline.es/774-home_default/fulbat-fp12-12fr.jpg)

> Fulbat FP12-12FR: 12 Ah UPS battery, 151×98×101 mm, AGM. Equivalent to Ritar RT12120 and Long WP1251W. 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-fp12-12fr
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-FP12-12FR
- **MPN**: FP12-12FR
- **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 | 12 Ah |
| Length | 151 mm |
| Width | 98 mm |
| Height | 101 mm |
| Weight | 3.24 kg |
| Terminal layout | 4 |
| Terminal type | T2 |

## Quick description

Fulbat FP12-12FR: UPS battery with 12 V and 12 Ah, measuring 151 × 98 × 101 mm.

## Description

## The Fulbat FP12-12FR at a glance

The Fulbat FP12-12FR 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 FP12-12FR belongs to the Fulbat FULBAT FP General Purpose range. [More Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Equivalents and alternatives to the Fulbat FP12-12FR

As the FP12-12FR 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) |
|---|---|---|---|
| Ritar RT12120 | AGM | 12 Ah | 151 × 98 × 101 |
| Long WP1251W | AGM | 12 Ah | 151 × 98 × 98 |
| Long WPL12-12 | AGM | 12 Ah | 151 × 98 × 98 |
| Long WPS12-12 | AGM | 12 Ah | 151 × 98 × 98 |
| Long WPS12-12T | AGM | 12 Ah | 151 × 98 × 104 |
| Long WPL14-12S | AGM | 14 Ah | 151 × 98 × 100 |

## Fulbat FP12-12FR vs FP12-9: which one to choose?

What sets the FP12-12FR apart from its neighbours in the Fulbat range:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Fulbat FP12-12FR (this one) | 12 Ah | 151 × 98 × 101 | 3.24 kg |
| Fulbat FP12-9 | 9 Ah | 151 × 65 × 99.5 | 2.52 kg |

- Fulbat FP12-9: 3 Ah less, a different case (151 × 65 × 99.5 mm).

## Inside the FP12-12FR: AGM technology

The FP12-12FR 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.

## Check this before ordering the Fulbat FP12-12FR

- Length, width and height of the FP12-12FR: 151 × 98 × 101 mm.
- Capacity of the FP12-12FR: 12 Ah; the same as your current battery or slightly more is fine.

## Fulbat FP12-12FR codes and part numbers

The FP12-12FR is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | FP12-12FR |
|---|---|
| Terminal type | T2 |
| Not to be confused with | Fulbat FP12-7.2FR (7.2 Ah), Fulbat FP12-18FR (18 Ah), Fulbat FP12-3.2FR (3.2 Ah) |

## Frequently asked questions about the Fulbat FP12-12FR

### Fulbat FP12-12FR or FP12-9?

Compared with the FP12-12FR, the Fulbat FP12-9 has 3 Ah less. With 12 Ah, the FP12-12FR runs longer between charges than the FP12-9 (9 Ah). Mind the space: the FP12-9 measures 151 × 65 × 99.5 mm.

### How much does the Fulbat FP12-12FR weigh?

The FP12-12FR weighs 3.24 kg. For reference, the Fulbat FP12-9 (9 Ah) weighs 2.52 kg.

### Which battery is equivalent to the Fulbat FP12-12FR?

Only other AGM batteries with its dimensions and polarity: Ritar RT12120, Long WP1251W and Long WPL12-12. Neither an EFB nor a conventional battery replaces the FP12-12FR.

### Which charger does the Fulbat FP12-12FR 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 FP12-12FR

- [All uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [More Fulbat models](https://bateriasonline.es/en/fulbat-batteries)
- [Ritar RT12120](https://bateriasonline.es/en/ritar-rt12120) · 12 Ah, 151×98×101 mm
- [Long WP1251W](https://bateriasonline.es/en/long-wp1251w) · 12 Ah, 151×98×98 mm

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