# Cyclon 4V-D · Alarm battery 4V 2.5Ah

![Cyclon 4V-D · Alarm battery 4V 2.5Ah](https://bateriasonline.es/3761-home_default/cyclon-4v-d.jpg)

> Cyclon 4V-D: 2.5 Ah alarm battery, TPPL. Price on request: ask for a free quote.

**Category:** [Batteries for alarms, emergency lights and devices](https://bateriasonline.es/en/alarm-emergency-light-device-batteries) → [Cyclon](https://bateriasonline.es/en/cyclon-batteries)

- **Canonical URL**: https://bateriasonline.es/en/cyclon-4v-d
- **Language**: en
- **Brand**: Cyclon
- **Reference**: BOL-CYCLON-4V-D
- **MPN**: 4V-D
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Cyclon |
| Range | CYCLON Battery 4 V Monoblocs |
| Application | Alarms, emergency lighting and devices |
| Technology | TPPL |
| Voltage | 4 V |
| Capacity | 2.5 Ah (C10) |
| Height | 4.6 mm |
| Weight | 0.36 kg |

## Quick description

Cyclon 4V-D: alarm battery with 4 V and 2.5 Ah.

## Description

## Where the Cyclon 4V-D fits

The Cyclon 4V-D is a VRLA battery for alarms, emergency lighting and electronic equipment: sealed, small and designed to spend years on float charge. Check dimensions and terminal type.
The 4V-D belongs to the Cyclon CYCLON Battery 4V Monoblocs range. [More Cyclon batteries](https://bateriasonline.es/en/cyclon-batteries)

## TPPL technology in the 4V-D

The 4V-D is TPPL: thin plate pure lead AGM. It is the technology behind ODYSSEY, GENESIS and PowerSafe.

## Part numbers and codes for the Cyclon 4V-D

Look for any of these 4V-D codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | 4V-D |
|---|---|
| Not to be confused with | Cyclon 4V-X (5 Ah), Cyclon 4V-E (8 Ah) |

## Check this before ordering the Cyclon 4V-D

- With 2.5 Ah, the 4V-D replaces an original battery of that capacity or slightly less.

## Frequently asked questions about the Cyclon 4V-D

### How much does the Cyclon 4V-D weigh?

0.36 kg, with 2.5 Ah of capacity.

### How often should I replace the alarm battery?

Every 3 to 5 years, or when the panel warns of low battery. It is a wear part that degrades even if there have been no outages.

### Which terminal does the Cyclon 4V-D have?

See the terminal type in the technical data. In small equipment the usual ones are F1 (4.8 mm) or F2 (6.35 mm) tab terminals.

## Keep comparing: alternatives to the 4V-D

- [Other batteries for alarms, emergency lights and devices](https://bateriasonline.es/en/alarm-emergency-light-device-batteries)
- [Full Cyclon catalogue](https://bateriasonline.es/en/cyclon-batteries)

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