When it comes to electric skateboards I personally like the Breeze II. This is the best budget electric skateboard I’ve found in my search for the best e-skateboard under $800. The Breeze II cost only $799 and it is far the best in this range of e-skateboards.
The top speed of Breeze II gets up to 29 mph with maximum range of 16 miles on a single charge. But, be aware that maximum range varies depending on speed, terrain and riding style, as well on rider’s weight.
The Breeze II features powerful dual 450 W motors able to deliver enough power to override even steepest hills (maximum climbing angle of this skateboard is 30 degrees). The trucks are extra wide and the wheels are wider and larger then normal which allows much more control and comfort. The Breeze II is waterproof up to IP67 standard meaning it can be dropped into a body of water up to a meter deep for half an hour. I didn’t try this, but if you wish you are welcome!