What will happen for Receiver and T-134 in power outage? Such as replace battery

What will happen for Receiver and T-134 in power outage? Such as replace battery, or electricity outage? How battery went out?

They won’t lose codes if that is what you’re asking.

After replaced battery / power back on, it will continue to work.

Please refer to following video on how to replace battery in remote,

https://www.solidremote.com/support/topic/video-change-remote-battery-set-tx134-dual-mode-transmitters-working-mode/