I've been using a Magnetti Marelli 53034 Lithium for over 4 years and 24,000 miles without problem. For about 2/3 of this I was running the original CE rectifier and then switched to a Harley type.
It's never been on a conditioner (I disconnect it when the car's not going to be used for more than a week or two) and consistently charged at 14.4v on the CE and 14.3v on the Harley.
