About an hour but if not get a good electric charger and use it..saves gas..dead batteries need to cook a while to build up the static mechanical charge in the system.. why was it dead before..
I let car idle until engine warms up dont run heater or cd player.check alternator output with engine idling should be 13.5 - 14.5 volts if not alternator not charging battery.clean battery cables and battery post terminals if they are corrodded.if battery 4 years old more likely battery going bad.
Answers & Comments
About an hour but if not get a good electric charger and use it..saves gas..dead batteries need to cook a while to build up the static mechanical charge in the system.. why was it dead before..
I let car idle until engine warms up dont run heater or cd player.check alternator output with engine idling should be 13.5 - 14.5 volts if not alternator not charging battery.clean battery cables and battery post terminals if they are corrodded.if battery 4 years old more likely battery going bad.