I think I'll put this off until fall. At that time I'll make sure the batteries are fully charged (as they have been all winter) and will keep everything turned off, even if theoretically capable of withstanding the voltage (good points SG). I have no control over voltage or amperage; the CTEK is fully automatic. It will be interesting to see how it handles the process. People over here speak highly of these chargers, so I certainly plan to give it a try.

Thanks again,
Max