This bike does not compare to other 750w motor bikes going uphill. I wanted to love it but as someone with a hilly commute I am struggling getting home. That and, it stopped turning on the first time I rode it in the rain.
That seems strange mine gets wet all the time maybe it's something else could be the controller. I'm sure you know this but it does have 15 levels of paddle assist make sure you're in the highest and the lowest gear I haven't had any hills I couldn't make it up.