Installed alternator cut off a few Questions.

[MetroMPG]

Originally Posted by Daox

My question on this would be, is it bad to constantly run a battery at say 50% capacity and keep it around there?

Depends on how long you're talking about.

Lead acid batteries start to degrade through sulfation (causing lost capacity) when left partially charged. They shouldn't be left partially discharged for more than a day.