The battery in my TJ is an Interstate with a 01/2017 date code on it. I'm not sure how it is still kicking. I park the jeep over winter so it doesn't get salt from the roads. Usually I trickle charge it a few times over winter when I remember, but I haven't yet and have not started it since before November. Went to move it yesterday and it kicked over after half a crank and ran like it was started 10 minutes prior. I'm sure now that I said this the battery will be dead next time I go to move it.![]()
Oh, I also discovered why my 02 keeps running down the battery. The TL;DR is that the owner is dumb.
When I bought it, I noticed that the radio stayed on after I turned it off, so I assumed that bubba incorrectly wired it up off constant 12V rather than accessory and never bothered to investigate further. Then I replaced the cigar lighter with a usb-c/voltmeter thing. It's the kind that has an on/off button and I found that I would have to remember to turn it off, because apparently it was wired into 12V constant as well. That should've been the red flag, but I've had this jeep for 3 years I think, and I've just lived with it. And there may be a parasitic drain as well. It can be a bit of a hassle, because I've been keeping this jeep at our cabin in Arkansas, so I routinely have to jump it when I come back or unplug the negative battery cable.
Until a few days ago, when I "discovered" that the position in which I was removing the key was actually the furthest back key position, which apparently is accessory. The 02 is a stick, and it has that button you press to rotate the ignition back and remove the key. Well I was rotating it too far, and on top of that the key is removable in all positions so it was an easier mistake to make than normal. Once I started only turning it to the OFF position, the accessories powered down and the jeep sat for 6 days and then started right back up. Previously even starting up the next morning was a 50/50 proposition.
I should add that neither of my 97's have an ignition position "behind" OFF, so 2/3 of the time I can just rotate it all the way back and have the jeep be fully off. This manual 02 is an outlier from my normal shutdown procedure. So I'm not *completely* stupid. Just partially.
Hit me with your best facepalm emojis.
I have to watch mine when I shut ot off. One of my keys is worn enough it will come out in any position.
Its now the spare key, the other key works as it should. The only time I have drained the battery was when the spare key turned back to the accessory and I didn't catch it before I removed it.
