# Stationary UPS battery Fulbat FP12-2.9 12V 2.9Ah AGM

![Stationary UPS battery Fulbat FP12-2.9 12V 2.9Ah AGM](https://baterias.com/6328-home_default/battery-fulbat-fp12-2-9-12v-2-9ah.jpg)

> Fulbat FP12-2.9 stationary UPS battery 12V 2.9Ah AGM. FP General Purpose range. Dimensions 79×56×105 mm. Long float life for UPS, alarms and standby equipment.

**Category:** [Batteries for UPS / UPS](https://baterias.com/gb/batteries-for-sai-ups) → [FULBAT](https://baterias.com/gb/fulbat)

- **Canonical URL**: https://baterias.com/gb/battery-fulbat-fp12-2-9-12v-2-9ah
- **Language**: en-GB
- **Brand**: FULBAT
- **Reference**: BCOM-FULBAT-FP12-2.9
- **MPN**: FP12-2.9
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | FULBAT |
| Model | FULBAT FP General Purpose |
| Voltage (V) | 12 V |
| Largo | 79 mm |
| Ancho | 56 mm |
| Alto | 105 mm |
| Tecnología | AGM |
| Terminal type | FASTON-4.8 |
| Capacity (C20) | 2.9 Ah |

## Quick description

**Fulbat FP12-2.9 12V 2,9Ah** is a stationary battery for backup power systems: UPS, alarms, telecom and emergency lighting. Long float-life under permanent charge and instant response to mains outages with no noticeable voltage drop.

### Why this stationary battery?

- **Instant response** when the mains drop, no voltage dip
- **Long life under 24/7 charge** optimised for permanent service
- **Compatible with your system** existing UPS units and alarm control panels

🔌 Voltage
12 V

⚡ Capacity
2,9 Ah C20

📏 Dimensions
79×56×105 mm

⚙️ Technology
AGM

## Description

## Stationary battery Fulbat FP12-2.9 2.9Ah 12V

12*V* Voltage
2.9*Ah* Capacity

The **Fulbat FP12-2.9** with AGM technology is a **2.9 Ah**, **12 V** backup battery for UPS, alarms, telecoms and emergency lighting. Its 79 × 56 × 105 mm make it the exact replacement for the 2.9 Ah battery fitted as standard to many UPS, alarm and emergency systems.
- Instant response to mains failures.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Standard format for UPS and emergency systems.
- Low self-discharge and high reliability.

### What the Fulbat FP12-2.9 is for

The Fulbat FP12-2.9 is designed for UPS, alarms, telecoms and emergency lighting: it sits on float charge and responds instantly to a mains failure. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has FASTON-4.8 terminals.

### Dimensions, polarity and mounting

The Fulbat FP12-2.9 is made in the 79 × 56 × 105 mm format. It uses FASTON-4.8 terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

### Fulbat: the maker behind the FP12-2.9

French brand Fulbat is a European reference in motorcycle, garden and leisure batteries: compact ranges, clear JIS codes and a consistent quality that workshops know well. We guarantee that every Fulbat arrives new, charged and with the manufacturer's full warranty.

### Technology inside the Fulbat FP12-2.9

Fulbat builds the FP12-2.9 to the same standards as the rest of its catalogue; what changes between references is capacity, format and terminal position.
AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly.

### Care and maintenance

Check the float voltage of the UPS or charger: a voltage that is too high shortens the life of a sealed battery. Replace all the batteries in the set at once and avoid environments continuously above 25 °C.

### Official warranty

The Fulbat FP12-2.9 comes with the **manufacturer's official warranty** against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you.

### When you get it and how to return it

Same-day dispatch from our warehouse for in-stock orders placed **before [[ks:cutoff]]**: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for **[[ks:return_days]] days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.

## Frequently asked questions

### How is the Fulbat FP12-2.9 battery installed in the vehicle?

In most devices it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

### How long does the Fulbat FP12-2.9 battery last?

Expected lifespan of the Fulbat FP12-2.9 is 4 to 7 years in regular use (depends on technology and climate). In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.

### What are the measurements of the FP12-2.9 model?

Dimensions (length × width × height) are 79×56×105 mm — also written as 79x56x105 mm — following the European DIN standard. Always measure the space in your device before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

### Which batteries are equivalent to the Fulbat FP12-2.9?

Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop devices. See the "Equivalents" section to view recommended options at the same performance level.


## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-09-28*