The most typical application is to maintain power on a computer so that, should main electric power be suddenly lost (because of a black out, a thunder storm or some other reason), recent work can be saved before the computer shuts down. Besides computers, other important data processor driven electronics can benefit from battery support:
- Telephone and telecommunications equipment
- Digital signage player and display
- Digital video recording systems
- Digital mixing consoles
- Access control and security systems
- Emergency evacuation public address systems