General
Nominal voltage	12 V
Capacity	2,9 Ah
Technology	AGM (lead-velvet)
Degree of protection	Sealed, spill-proof
Connections	Flat connector 4.8 mm
Lifespan	long -
Self-discharge	very low -
Deep discharge protection	with suitable electronics -
Application type	Cyclic and standby -
Construction type	Compact -
Maintenance	maintenance-free -

The BA-029 is a maintenance-free, sealed lead-velvet battery (AGM technology) with a nominal voltage of 12 volts and a capacity of 2.9 Ah. It was specifically developed as a replacement battery for the Wireless POWER-PHONE WPP-050, but is also suitable for other 12-V applications with a comparable connector format. The AGM technology (Absorbent Glass Mat) ensures very low self-discharge, long service life, and safe operation in any orientation. The battery is leak-proof, protected against deep discharge (when used with appropriate electronics), and can be used for both cyclic and standby applications.

Lead-velvet technology (AGM) enables high reliability and stable operation, as the electrolyte fluid is absorbed in a glass fibre mat. This makes the battery safe even when tilted or inverted, without any fluid leakage. The sealed design ensures no gas emission escapes to the outside, making it suitable for use in enclosed spaces. The maintenance-free construction means no regular topping up or maintenance is required.

Applications primarily include use as a replacement battery for the Wireless POWER-PHONE WPP-050, a mobile sound system. Due to its compact design and 12-V voltage, it is also suitable for other devices with a comparable connector format, especially in mobile or portable applications where a reliable, maintenance-free power supply is needed. The capacity of 2.9 Ah provides sufficient energy for operating the WPP-050 over an extended period, depending on volume and usage duration.

Functions and features in detail include the integrated deep discharge protection function, which, when used with appropriate electronics, prevents the battery from being discharged too deeply, thus extending its service life. The flat pin connectors with 4.8 mm allow for a secure and easy connection to the device. The dimensions of 79 x 107 x 56 mm (W x H x D) and the weight of 1.24 kg make the battery compact and easy to handle, ideal for mobile applications.

Technology explained simply: AGM technology is a variant of lead-acid batteries in which the electrolyte is absorbed in a glass fibre mat. This makes the battery leak-proof and allows operation in any position. The nominal voltage of 12 V is a standard voltage for many portable devices and systems requiring stable power supply. The low self-discharge means the battery remains charged over long periods, even when not in use.

Compatibility and accessories: The battery is specifically developed for the Wireless POWER-PHONE WPP-050, but is also suitable for other 12-V applications with a comparable connector format.

Installation and mounting: Installation is carried out by simply plugging the flat pins into the corresponding sockets of the device.

Operational advantages: The combination of maintenance-free construction, leak-proof technology, and long service life makes the BA-029 a reliable power source for mobile applications. The compact design and low weight facilitate transport and handling. The deep discharge protection function (when used with appropriate electronics) protects the battery from damage due to over-discharge.

Scope of delivery: 1x AGM replacement battery BA-029, instruction sheet for initial operation and storage.