getting a signal my battery needs to be replaced in the router box? (don't know what it's called) that's connected to the tv. do i have to pay for it? thanks, no wise cracks please.......
It’s either a battery back up unit or a power reserve unit.
And I don’t know what the “no wise cracks mean”
Battery is only need for phone service backup.
So no reason to replace if you don't have phone service or don't care if it doesn't work during a power outage.