I wonder, been yrs since I rebuilt a starter or alternator, can you even buy brushes or solenoid anymore for these, I use to do lots, as a lot of my stuff was old when I bought it.
I have been having trouble with the wifes 2008 Honda Crv, battery would crap out if it sat for a week, load test last fall said Ok, it was fine when in use, but last week it was way low up town , happened to be a Canadian Tire, so bought one of those new little jump boxes, as my old one crapped out while back.
They really worked great, needed it next day as well so took the battery in and bought a new one, it showed a bad load test, I had the doors open for 30min, while I was cleaning the inside, and dome lights enough to drag battery down.
That was 3 yrs old Honda battery, but I didn’t go back to Honda
BTW, My 2014 Ram is still on the original battery, both at about 85kM Guess the truck is where I should carry the new jumper, it will also charge /run cell phones, etc.