Same thing happened to me from a stop. No power. Just hit the brakes and I got power again.
My exact same issue, My Radrover 5 shuts down about every 15 miles, I tap the brakes and all is back to normal, till the next time, Rad sent me a new controller, brake levers, and wiring harness to replace, Replaced all, And still having the same problem, Customer support was great, But still not fixed, So I kinda gave up, And living with it
.
On another note I liked my Radrover 5 so much I bought another one, Right out of the box after assembly the new Rad had 3 shut downs in 4 miles, I sent it back immediately, Hope this glitch is gone with the new Radrover 6,
As I mentioned before my Rad shuts down about every 15 miles, In actuality it probably happens more often than 15 miles, Since I am using the brakes often. Please update this subject when you all have more to add,
A friend who is an electrical engineer commented that it may be a firmware problem, (Whatever that is)