To prevent overcharging and damaging my car battery I'll be checking it every 1/2 to 1 hour periodically when I place it on a charger. I've read on the web that dont let the battery get hot to the touch. How hot is hot to the touch? Is it like a high fever hot? Can someone let me know before I start charging my battery. Also I'm using a 10 amp simple, not a smart, charger so I'll need to check on it periodically during the charging process.