バックアップ電源 でしょう
bakkuappudengendeshō
1. Backup power source, probably.; It will likely be a backup power source.
Noun
#318090
1. Backup power source, probably.; It will likely be a backup power source.
1. backing (an initiative, candidate, etc.); support
2. backing up (another player); covering
3. backup
1. source of electricity; electrical power
2. power (button on TV, etc.)
1. power cable; power lead
1. development of electrical power resources
1. it seems; I think
2. right?; don't you agree?
1. With backup; By backing up
1. Was a backup.
1. Backup.; Support.
1. If backed up; If there’s a backup