I've never tried running for a really long time but when I was doing testing I would not recharged the batteries for days. I would say an easy 15 to 30 minute.

I've never tried running for a really long time but when I was doing testing I would not recharged the batteries for days. I would say an easy 15 to 30 minute. But like I say, I'e never tested. Now I think I will. Thanks