Never!

I have 2006 Ceyenne S. No surprise. When the battery goes on these it’s been my experience there is little or no warning. No slow crank. Sometimes it won’t even crank with the jumper on it. Just suddenly the feeling you are on s hidden camera tv show. Yes the key gets stuck in the ignition. Sometimes putting jumpers on the terminals will only make the alarm go ape **** and all the dash lights start flickering and declaring failures of system you didn’t know you had. Just replace the battery.

Me and my neighbors when my alarm is sounding and I am trying to position the seat to unbolt the triple
squares.

Th battery is dead. Replace it.