Thanks for your input.Get a good battery in there before you start diagnosing electrical issues. Low voltage can cause all sorts of issues with electronics that are not there with proper voltage. Being as you say the issues go away after running for a while it may be taking that long to get to proper voltage levels. Remember the job of the charging is to maintain proper voltage levels not to act as a battery charger. If the battery has dead cells or is shorted internally your taxing the charging system.