furcifer wrote: ↑
Aug 28 2019 2:33pm
I upped one of my controllers to 45A using the shunt mod and I've been running it for a month now with no issues. Pulled board, soldered another 5 MOHM resistor and added some thermal paste between the mosfets and the cover plate.
The controller does seem to run a bit hotter but nothing crazy. The motor as well but even less so. This seems like a very stable modification.
I'm looking to do the shunt mod on my stock BBSHD controller. Is yours still running? Any advice?
I have bought a spare parts controller for investigation and have picked out the potting. I also have a 2nd bike and intend to build a 2nd BBSHD, so will have a few controllers to mess with total.
I ordered a pack of sample shunt resistors including R005 which looks to be correct, to solder on, and it looks easy to get at that with minimal potting removal.
Is yours working fine and you recommend or not?
Also I suspect my BMS to be my next bottleneck, what do you have for a battery and BMS? I'm leaning toward disconnecting my BMS and just using the wires for balancing. Do you think this makes sense? It does to me, but I'm pretty new to this (not so advanced) level of electrical engineering.
Any else about your build would be interesting too.