Can I also use batteries for inverter as an emergency power system?

Yes, as we discussed already that an emergency or backup power supply in the event of a temporary power failure can be useful. Such functions are part of the scope of functions in some home storage systems and range from an emergency power socket on the storage unit to automatic switching to backup power operation. In this way, important devices in the household can continue to be supplied independently of the mains power – albeit for a limited time.

What type of batteries for inverter is the best?

There are various technical solutions on the market. Lithium-ion batteries have prevailed. The main advantages of lithium batteries are their high efficiency, high energy density and comparatively long service life, even with intensive use. The storage capacity can largely be used in continuous operation without the battery suffering. Since these batteries are also becoming more widespread in other fields of application such as e-cars and in large storage systems, prices are also falling due to increasing production and constant further development.

Lithium batteries for inverter are well suited for intensive use. They should be charged and discharged as often as possible over their lifetime, and it will not harm the lithium battery if it is frequently fully charged and then almost completely discharged again. The storage capacity can therefore be used almost to its full extent, while, for example, only about half of the capacity can be used with lead-acid batteries.

High or very low ambient temperatures and a high state of charge are unfavorable with this type of battery. That is why the batteries are best kept in a dry basement room and should only be fully charged for a short time. It is ideal if the battery charges fully by the afternoon so that the discharge begins afterward due to the power consumption in the evening. The battery should be largely discharged by the following morning.