So recently, I have been occasionally having problems with my laptop (random black screens while using it). I've noticed that when I get these black screens, I am on the replacement charger I bought a while ago. The only way to get out of the black screen is to hard shutdown and restart. So tonight, I tested the voltage coming from the original adapter, then from the replacement. The replacement one gave out about 18.7 volts, where the original gave 19.2 volts. I don't think this is a major difference, however I don't know much about electricity. I was wondering if this could be what's causing my laptop to be derpy.