So there are obvious things about Batman's abilities that stretch the bounds of what a peak human should be able to do. Rappelling through Gotham alone should have his arms so exhausted that he would barely be able to lift them to fight a single criminal. Being able to soundlessly disappear while a cop is lighting his cigarette over and over and over again also strains credulity. But these things, like Doom having sorcerous powers are things we can write off to comics being comics. Peak human in the DCU does not equal peak human in our world. As anyone who trains knows, it's very easy to blow your wad in a fight, so facing hundreds of ninjas or joker venom crazed civilians would be impossible for a normal human, but we forgive that in comics. There are some things Bats has done, however, that even defy comics logic, particularly in the past 30 years. These things are on par with anything ridiculous Doom ever did or attempted to do.
1) He fights two wolves off and murders one by twisting it until its spine snaps. Seriously, wut?
2) Dim Mak vs. The Mutant leader in Dark Knight Returns. Dim Mak is simply not real and doesn't work and yet is a major part of Bruce's arsenal in a lot of his fights through the years. We can put this one safely down to Writer induced stupidity though.
3) Coming back from the dead with the help of the flying squid monster because he's so awesome that he thought of using his family's genes and Bat markers to pull off the feat and defeat the anti-life equation. More WIS, but plausible because he's Batman.
3a) Clawing his way out of the grave because of course "Batman thinks of everything" in Grant Morrison's words. It was a difficult enough feat when Spider-Man managed it in Kraven's Last Hunt and he struggled to do it, but he's superpowered, so clawing through a casket and earth is somewhat plausible. Bats escaped a straightjacket and coffin without overusing his oxygen and climbed through 6 feet of dirt in Batman RIP. And this wasn't even the first time he's done such a thing. Ludicrous every time for a normal guy.
4) Effortlessly snatching, curling and chucking a barbell with close to 200 lbs of weight on it:
5) Leg pressing a train car
6) Resisting the pull of a jet turbine long enough to have a conversation and then escape
7) Rips apart a brick wall when he can't escape netting
8) Breaks apart a Damascus steel blade with his Batarangs. Anyone who knows anything about blades should know this would be impossible, but it's possibly excusable, because who knows what the Batarangs are made from though the amount of pressure he'd have to exert to snap the blade defies belief.
9) Evades a shark then breaks its back to kill it
10) Chokes out a tiger (the garrote technique seems to be a Batman favorite, clearly learned during his time in Sicily)
11) Kicks both opium and venom on separate occasions with no rehab or night sweats, just sheer force of will.
12) Roundhouse kicks a motorcycle in half
13) Surprises, and KOes Deathstroke with one kick.
14) Slows his bleeding through force of will using Sufi mystical powers. Wat
15) Routinely shakes off Joker venom, Poison Ivy's pheromones, Crane's fear gas, Mad Hatter's hats and various telepaths attempts at mind control using his willpower when he doesn't have an antidote handy.
16) Melts ice by mastering a form of meditation
17) Lands a kick on the Spectre
18) Withstands the vaccum of space and begs for more
19) Holds his own in combat against Karate Kid, even defeating him at one point, which is basically the equivalent of Black Panther kimuraing Silver Surfer.
20) Escapes Wonder Woman's magic lasso by taking off his cowl. Definite WIS.
21) And finally, goes toe to toe with Darkseid in a straight up fight in his "Hellbat" armor. See him land punches, not get crushed to death and use Bats to distract Darkseid here:
Batman In Hellbat Armor VS Darkseid | Comicnewbies