Battery and inverter.. So i went off and tried that. Fighting issues with false trip of uvlo and ovlo on the inverters hasn't been much fun. The hvac energy is not friendly to modern electronics. No surprise that's what i am using it for... So back to the original rewinding question... --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .