I'm not "The Man" when it comes to these things, but I'll take a shot at it.
With your volts gauge going low sometimes, it could be your alternator. Rather, it'* probably your alternator. Does it do this mostly when you're stopped at a light, idling with the lights on? That would be classic weak alternator.
Of course, you are right that killing a battery 5 times does it no favors either. I suspect that a new battery might be a good idea too, preferably the same time as you do the alternator (a bad one of either unit tends to take down the other).
It sounds like your engine is getting way too hot. You might have a stuck thermostat, clogged radiator, something along those lines. Or a bad temp sender, perhaps... if it'* reading right though, that'* really bad. Make that priority #1 to fix.
The ABS light is on because your wheel bearing got too sloppy, and finally took out the ABS sensor. Good news is that it'* all one unit. Replace the bearing/hub assembly, and the ABS should be okay again. Sounds like that bearing is pretty darned bad, so I'd make that priority #2.
Hope that helps.
I'm Jon. I'm completely stock, no mods.
1993 Bonneville SSE 191,000 miles "The Work Beater" Imperfect but quite tolerable. Stock.
1996 Buick LeSabre Limited, 181,000 miles "The family car" Custom CAI, F41 Sways.
Sold/dead, but not forgotten: 1989 Bonneville LE "Bonnie, the Sport Utility Car" STB from '92-'99 Bonnie, Delco (Type II) Ignition system
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