I'm entering my car in a local "in-door" car show. The battery must be disconnected for 3 full days. One of the show's representatives called me and said another Viper owner (he believes its also a Gen 3 owner) says he can't disconnect his battery for that long because it could potentially harm his car's computer or related components. I was unaware of such an issue and a quick forum search didn't reveal anything. The show's rep wants me to produce documentation to either confirm or dispute the other Viper owner's claim. Other than the normal "re-learning process" should I be concerned about disconnecting my battery that long??
Computer problems after long-term battery disconnect?
- Thread starter Clyde
- Start date
Flexx91
Viper Owner
Sounds like someone's urban legend unless that owner has some other aftermarket device installed. Disconnecting the battery won't affect the ECU, BCM, or any other stock component.
Silver04
Enthusiast
Mine has been dead for almost a month with no issues once rejuvenated. The '04 manual discusses a minor chance of having an issue with the OBD but there is a step-by-step procedure listed as to how to check and refresh it, if necessary. Otherwise, 
on!
"The OBD system may not be ready if your vehicle was recently serviced, if you recently had a dead battery, or a battery replacement."
on!"The OBD system may not be ready if your vehicle was recently serviced, if you recently had a dead battery, or a battery replacement."
cfiiman
Viper Owner
I agree with others, but there is also a 9-volt connector you can get at any box store. That will provide enough power to maintain all your computer/radio settings, they are like 6 bucks. I have one (on the advice of Steve-Indy) for when I go to swap out a battery, that way the computer does not have to relearn everything.
great advise!!!!
Thanks...that will be my next purchase!
