The green lantern ring. Perfect fit

He could be a robot green lantern, we have a green lantern that's a planet and one that's a virus. so one that's a robot wouldn't be that far off

No powers all gadgets like a futuristic Batman with like energy gauntlets and rocket boots

Na futuristic and batman don't mix well in my opinion. Hell basically be off brand iron man.

The whole thing about Batman is his mafia like and old school mentally, theirs something about old school that just makes batman, batman.

We can agree to disagree