A123 Question
Finally getting back into the hobby after two years and the battery technology has changed quite a bit. What is the hot ticket for giant scale airplanes? Need to put some new batteries in my 35% YAK w/da 100 motor. The A123 batteries seem to be the newest technology but has anyone come up with a way to check them? Or do I need to look in another direction like Lithium Ion w/regulators?