A while back, one of the posters here was interested in using a much lighter Lithium battery for their plane.
Bob Nuckolls, who is an expert on electrical systems in airplanes, has an article on Lithium iron-phosphate batteries in the latest Kitplanes, entitled "Battery facts and fables: lithium lead-acid equivalency. It starts on page 63 of the September 2014 issue. At this point, he doesn't endorse Lithium batteries, mostly because of the lack of information that manufacturers have provided to him. He also delves into the special issues that a person using a lithium battery might encounter with their use. Those don't seem to be addressed by manufacturers. He is promising follow up articles. I found it interesting reading. Dan Branstrom
