I have a EU RadRhino Step Thru 1. I have upgraded to an Eggrider 2 and Shark Battery at 52V. Recently the bike won't turn on at all but after testing there is defo power coming out of the battery. I'm wondering what the maximum voltage the standard RAD controller for my model can take. I am aware that the Eggrider cannot exceed 60V but the battery does not exceed that when stressed.

Assistance would be gratefully received!