I ride my board every day and both motors worked fine, maybe 100 miles on them, then one of my FOCBOXs (entertions motor controlleers) stopped working when I tried to turn on my board to go for a ride. I did the next logical thing which was to contact customer service to see if they would replace the faulty motor controller, since I have 2 of them on my board for both motors, and only one failed. If my settings on both FOCBOX’s were harmful, shouldnt both of the FOCBOXs died? Anyways I went forward and contacted customer service to get a replacement. After talking to enertion customer service, they told me that they wanted me to buy a “warranty” for $80 to repair a product that failed under the specs listed on the enertion website. After waiting 5 months for FOCBOXs and having one of them die after 100 miles, I will never buy an enertion product again. I also advise others to take their business elsewhere. I have a second FOCBOX that was always used in conjunction with this one, with the same settings, and it never failed. It is also interesting how enertion tried to shift the responsibility of the error on to me with these statements:
"I think your FOCBOX is fried due to incorrect values. 1: Batt Max for 10s system will be maximum 30A and yours is 50A which is high for the 10s system"
It says on the enertion that each FOCBOX is rated for 60A. My battery is only capable of 60A max, meaning two FOCBOXs drawing power from a 60A pack couldn't have exceeded that limit. It is even stated that each FOCBOX can hand up to 120A peak, meaning even if my battery send more power the whole system would have never exceeded 240A.
Link: http://www.enertionboards.com/electric- ... ontroller/
"2: ERPM value is also high, recommended value is 60000 and your is 100000 which is high"
Again, it says on your website that 100,000 is "fine" and 60,000 as a limit is a "myth". Link: https://enertionboards.zendesk.com/hc/e ... he-Focbox-
"3: Input voltage recommended for FOCBOX is 50.4 maximum, your is 57 which is high."
My battery can only produce a max of 42v, thus it is impossible to exceed 50.4v since 42v is less than 50.4v. I have a 10s4p battery pack, so 42v max, 60A max since I am using Samsung 30Q cells.
I spent over $250 with enertion. I regret every dollar I spent with enertion and all the wasted time. If you want quality and customer support, enertion is not the place to go folks