Why is the use of storage batteries very important for some applications? details of their most important applications?

It's crucial for many application to use the Storage batteries for different purposes, like protection and control, save data, emergency evacuation and safety purpose.

Following are some of the applications for storage batteries:

• As a supply power source in telephone exchange, laboratories and broad casting stations.• For emergency lighting at hospitals, banks, rural areas where electricity supplies are not possible.• For the operation of protective devices and for emergency lighting at generating stations and substations.• For starting, ignition and lighting of automobiles, aircrafts etc.• For lighting on steam and diesel railways trains.