The SONAES series battery chargers (24 V DC) are microprocessor-based devices designed to charge lead-acid batteries (backup batteries connected to the voice alarm system) and simultaneously provide power to system devices such as processors and audio amplifiers.

The SONAES battery chargers, fully compliant with the EN54-4 standard, offer a maximum charging current of 6 or 12 A. The battery charger has a height of 2U.