I'm unsure if you're still active on CPF or not. We've got a bit of a debate going about the allowable input voltage of the MH-C9000, using the car charger. Would you care to take a look and comment? Here's the thread: http://www.candlepowerforums.com/vb/showthread.php?342306-What-is-the-input-voltage-range-on-an-Powerex-MH-C9000