Batteries for the telecommunications
sector

In order for batteries to fulfil their purpose in the telecommunications sector and ensure an uninterrupted power supply, the power storage units should feature certain technical characteristics:

• Maintenance-free and sealed
• Long service life
• Cycle stability
• Low self-discharge

AGM batteries (Absorbent Glass Mat) are frequently used in the telecommunications sector. Due to their technology and design, they fulfil many of the above requirements that are essential for use in telecommunications systems.

The lead-acid battery, also known as an AGM battery, has thin glass-fibre fleeces between the lead plates inside the power storage unit, which absorb the electrolyte (sulphuric acid). The advantage of this technology is that it is completely maintenance-free. In contrast to the classic wet battery, no water needs to be topped up to maintain the liquid level in the battery. Due to the completely sealed housing, the AGM battery is also leak-proof and can therefore be set up and used in any position. 

Due to their technology, AGM batteries have a high cycle stability and therefore a long service life, as well as a low self-discharge rate. As the batteries are only used in the event of a power failure, low self-discharge rates play an important role in the selection of the telecommunications battery. They must be able to be switched to stand-by mode over a longer period of time without discharging completely.