I just wanted to post my amazement: My son lost his relay about a month ago, and we couldn’t find it anywhere. The last location said it was at home, but we gave up after awhile. Then today we found it outside, and I thought it was a goner. It’s rained heavily, snowed heavily, iced heavily, and been subzero temperatures since the time we lost it. But when we plugged it in just now, it started charging and powered on like nothing ever happened. Color me seriously impressed!