does the battery of a water damaged phone need to be replaced?

The phone in question is actually and htc u11 not u11 life, but for some reason that isn’t an option

So I recently replaced my battery in the phone and then killed it in a hot tub. I have another u11 at my disposal that only needs a new screen and could do with a new battery. I have the new screen and am prepared to replace it, but I’m wondering if the new battery from the water damaged phone is good to go. Is there a good way to tell? There is some light corrosion on the solder and some deposits on the wrapping, but otherwise no visible damage. When I plug the battery into the phone and plug in the phone it says it is charging and with the new screen on it appears fully functional. I just don’t want to find out that the battery can’t hold a charge or will damage the phone somehow.