Problem with this car. When first starts up, battery indicator shows only charging at 1/4 level power, then after 2 minutes, will surge to 3/4 power. Sometime headlights will flicker on and off, sometimes when vehicle slows down for stop, power loss indicated by needle dropping to 1/4 power on battery charge indicator. Intermittent, but seems to be getting worse. Have had it looked at, but of course, wasn't happening then. Have replaced alternator, to no avail, and checked battery connections. Any suggestions or if someone with similar problem, please help.