Zugo Rhino repair

[marcxs]

I was pushing up a dirt road hill and motor pretty much came to a chugging stop.
When I hopped off it was smoking and some wiring in the controller area had melted.
I've wandered into the repair hoping to increase the controller and bms. Tested battery cells and series seems like the battery is fine. Its the original battery that came with bike 48v 13s I replaced the bms with a emp bms I order a 60A they sent 80A. Said they didn't have 60 in stock no up charge for the 80. This did not fix the problem. I also order a kunray 48v 2000w controller I can return this still. I'm not convinced it the one I should have selected.
Doesn't seem to have PAS hookup?
Maybe I'm crazy to consider upgrading these 2 items. I'm not looking for more speed just not wanting to melt down again I do climb some here in Colorado thanks

 

[E-HP]

The stock battery apppears to be a 13s6p pack made with Samsung 35E cells. The cells are rated for 8A continuous, but have a lot of voltage sag since they are high energy cells, not high output. So 6p would mean 48A continuous, when new. 60A or 80A discharge from that pack will kill it quickly. You should either get/build a more capable bike, or ride this one within its capabilities rather than killing it.

 

[marcxs]

How would I build a more capable bike
I'm not looking for more speed but climbing is a priority? Thanks for any suggestions

 

[fill]

For specific recommendations the full picture is best, how much mass does your bike need to carry, and how far over what terrain and at what speed? Do you intend to provide any input or is the motor doing all the work?

Generally speaking for climbing mid drives are considered best as they can employ the bikes gears. While hub drives can climb hills if under load and supplied with high power for too long a period can overheat, a problem easily avoided with a mid drive by just selecting a lower gear to relieve the load on the motor.

Running a 750w motor with a 2kw controller is ambitious and optimistic. you will probably get the same performance and less heat generated if you employ either a less powerful controller or one you can configure to limit the max output. After all it seems like a lot of the power you supplied the motor went straight to heat generation with the current set up.