I want to attach a permanent connection for my Ctek maintainer. Looking at the battery positive terminal, it looks quite complicated, haha. The big plastic piece with 3 nuts looks like an integrated piece and I’m not sure I want to add my accessories to it. The red arrow nut looks like it should work. Any of you gents have a recommendation? What about the negative?
Just connect to the jump point under the hood - otherwise you'll need to leave your trunk open while hooked-up. I just prefer a hood up, rather than a trunk open. If you slam the trunk on the charging cable; will you reminder to disconnect before driving off???
I’ve connected my CTEK quick-connect at the underhood fuse box, just leave the hood ajar when charging: Video #23 here, by @NutzAboutBolts, shows how to access the 12 volt positive feed-in point at the fuse box. The CTEK connector has a robust plastic shoulder, and there’s limited space at the fuse box connection point, so I had to trim off that shoulder, bend the ring connector through a sharp 90 degrees, to fit. I found an unused threaded hole just a little forward and down, on the car body, connected the CTEK’s neg wire there: I have a few spare small metric bolts though, believe it’s 6 mm thd diameter (10mm head). Without an extra bolt, any existing body bolts should work, verify with continuity meter.
I would rather go from the trunk and straight to the battery. The top middle goes through a clear plastic for some reason, and the red arrow is the nut that loosens the whole plastic attachment from the battery. Yellow looks promising but goes through what looks like a breaker. The yellow arrow nut attaches to the cable that runs through the car and ends at the fuse box where the positive post is located under the hood. I’m thinking it might be the best place to attach it.
I wouldn’t bypass the battery sensor on the negative terminal. Regarding the two fusible links, yes, I wouldn’t bypass them either, just in case. I wouldn’t loosen the large nut for them. So, just connect it to the 10-mm-scoket nuts for battery-terminal clamps on both terminals. Do not loosen the 12-mm-socket nuts, and do not loosen the two fusible link nuts. You then need a 120-V extension cord, which you can route through a cracked window into the trunk. Last but not least, connect a BM2 battery monitor.
