# Cyclon batteries

> 11 Cyclon TPPL batteries in 2V, 4V and 6V for alarms and electronic equipment, from 2.5 to 12 Ah, such as 2V-D, 2V-X or 2V-E. Final price with VAT.

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- **Language**: en

## Description

Cylindrical Cyclon pure lead cells for alarms and electronics; buy online with the shipping cost shown upfront.

This is our selection of cylindrical Cyclon batteries: single 2 V cells and 4 V and 6 V blocks, all sealed and made with pure lead.
Filter by voltage and capacity, check diameter, height and terminal type, and choose the exact replacement for your alarm, instrument or emergency light without guesswork.

## How to pick your Cyclon battery

Start with the voltage your equipment asks for. If it needs 2 V, 4 V or 6 V, a single piece will do. If it needs 12 V, for instance, you will connect several in series: six 2 V cells, three 4 V blocks or two 6 V blocks. Then settle the capacity in Ah: more Ah means longer runtime, but also more bulk and weight.
- **Voltage:** 2 V per cell; 4 V and 6 V as monoblocs.
- **Capacity (Ah):** keep the original value, or go higher only if it fits.
- **Dimensions:** compare cylinder diameter and height, or the block outline.
- **Terminals:** confirm the connection type before soldering or bolting.

## Where Cyclon fits best

It shines in equipment that must work first time after long idle periods: detectors, data loggers, professional torches and security systems. For the wider group of these uses see [batteries for alarms and emergency lights](https://bateriasonline.es/en/alarm-emergency-light-device-batteries); for IT backup, check our [UPS batteries](https://bateriasonline.es/en/ups-batteries). To learn more about the brand itself, visit the [Cyclon brand page](https://bateriasonline.es/en/cyclon-batteries).

## Frequently asked questions

### Can I mix new and used cells in one pack?

It is not advisable. In a series string the weakest cell limits the whole pack. Replace every cell at once and stick to one model.

### Does the mounting position matter?

Being sealed recombination cells, they accept different positions. Even so, follow the orientation given by your equipment maker.

### Do they need a special charger?

Use a charger for sealed lead-acid with a limited voltage. Avoid chargers meant for flooded batteries without voltage control.

## Products in this category

| Product | Brand | Price |
|---|---|---|
| [Cyclon 2V-D · Alarm battery 2V 2.5Ah](https://bateriasonline.es/en/cyclon-2v-d) | Cyclon | 20,78 € |
| [Cyclon 2V-DT · Alarm battery 2V 4.5Ah](https://bateriasonline.es/en/cyclon-2v-dt) | Cyclon | 27,93 € |
| [Cyclon 2V-X · Alarm battery 2V 5Ah](https://bateriasonline.es/en/cyclon-2v-x) | Cyclon | 24,60 € |
| [Cyclon 2V-E · Alarm battery 2V 8Ah](https://bateriasonline.es/en/cyclon-2v-e) | Cyclon | 44,49 € |
| [Cyclon 2V-J · Alarm battery 2V 12Ah](https://bateriasonline.es/en/cyclon-2v-j) | Cyclon | 44,49 € |

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