Maybe I took out my credit card too soon! https://www.gray.com/insights/5-new-battery-technologies-that-will-change-the-future Stay safe & effective. Be well! 73, GJ Gerry Jurrens N2GJ NM Section Traffic Manager ARRL Life Member mailto:n2gj at arrl.net Albuquerque, NM USA http://www.bosquearc.com