It is sooooo good to see the Hellbat in action once more. The Kent family took refuge in Batman’s hidden batcave in the moon in order to minimize casualties while dealing with the Eradicator. With Superman absorbed by the Eradicator, it seemed nothing stood between it and its target, Jonathan Samuel Kent (Superman’s son). That is until Lois Lane found the Hellbat armor and delivered some much needed beating on the Eradicator.
The Hellbat was created by the Justice League for Batman in case there are “large scale threats in extreme battle scenarios”. It’s built to withstand a lot of punishment and allows the human Batman to go toe to toe with beings like Darkseid. The only catch in this formidable armor is it drains the metabolism of the user the longer it’s used.
From – Superman Vol. 4 #5