In Reply to: 9n has a Short posted by Dean on December 22, 2019 at 19:59:32:
When I had my 6 volt 8N every fall I'd clean all the connections. With 6 volt it's important to make sure everyone is making good contact. I kept a battery tender on it and the N always would start in the unheated barn regardless of how cold it was. Like others said it's most likely a battery problem. Sometimes they will have an internal short that causes them to go dead over night.
Since I've had the 3000 I've gotten lazy. I noticed last night that it has some corrosion on the battery. It's going to be warm here in Northern Indiana today so I'll take the battery out and clean everything up. I've read where this can cause a battery to loose voltage.