[Brother]

I notice some similar behavior with my car. I have an aftermarket voltmeter on it as well and you can really see it happen. If I'm in a low idle with the lights on, they might dim. After about 1050 RPM, it is cured and the voltage will increase. I have an Optima which takes a little bit extra to recharge too. If it is low on charge, it will keep teh voltage at 12.5 until it comes back up to capacity at which time I'm seeing something north of 13V. I have never really gotten the 14V that most cars get. Don't know why.