Backpack sized off-roader?

[E-Revonut]

1A for 40 minutes isn't a full charge from dead. I would try charging at 2A. Power from the stock battery isn't incredible but it is decent. Also take into account that most of the videos you see, they will be using 2 or 3s lipos, the truck is still stock but it doesn't mean the battery is. Also yes, out of the box the slipper is loose, I had to tighten mine up.