> none ever seem to reach the market All batteries that you use today were (obviously) prototypes at some point in time. But you don't wait to prototype someth

> none ever seem to reach the market All batteries that you use today were (obviously) prototypes at some point in time. But you don't wait to prototype something until it's a done deal, you prototype to test. Are you really complaining that there isn't a higher success rate for all battery tests that are done?