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Reviewed in Canada on February 17, 2025
It works great on my sawmill to run scooter motor that drives the carriage
Joe A
Reviewed in the United States on September 21, 2024
I burned up 3 of the 60amp controllers on a trolling motor pulling 40 amps.This 100amp unit ran cool as a cucumber and the battery lasted 5 hours trolling before it started to peter out.
Andy
Reviewed in the United States on August 4, 2024
UPDATE: moved from 4 to 5 stars. It's been probably 25 fishing trips now, most of them with a more powerful 62lb thrust motor, which pulls 54A. The speed controller barely warmed up by 2C with 20 min continuous run. Seems to be well made and reliable.Original review:The speed controller can be very good with some modifications. I use it for a 55lb thrust trolling motor that uses 50A at max.There are 2 channels, one for fwd and one for reverse. For each channel, it has 2 sealed relays in parallel with no inscription on them (look like 80A each, so 160A total), 2 flyback STPS41H100CG Schottky diodes (80A per channel) and 8 STP75NF68 mosfets (each mosfet is 80A).All mosfets have correct gate protection.So far the diodes are limiting the current at 80A per channel max, so it's definitely not 100A. But not a problem for my motor.The weak points are the realys green wires on the back. That's where the main power comes in from the battery. They would probably only carry around 15A each, so maybe 30A per channel. I doubled them up with 14AWG solid conductor, and this will ensure 100A per channel.I recommend putting another fan directly on the heatsink (connected to the wires of the existing fan).It's got good quality parts, except for the wires and the diodes that limit the current to 80A.If you are ok with some soldering and add more cooling, this will be a good reliable controller.
BRYAN
Reviewed in the United States on July 8, 2023
Works well as advertised. There was a malfunction in the one I bought but the company very quickly sent me a replacement which has worked very well so far.
Mary Zwick
Reviewed in the United States on June 27, 2023
I hooked this up to a motor that draws 45 amps at full load and tested it without any load, so the motor was drawing about 5 amps max. I varied the speed for about two minutes and then noticed the board making a sizzling sound and it began to smoke. At this point I disconnected the 12V battery to stop further damage.I took the cover off the board and found it to be surprisingly hot for such light use. There was a stray bit of solder on the board and some bubbled overlay, but it wasn’t apparent what had caused the issue.At no point did the controller see more than 13.4 V and ~5.4A, so it wasn’t an issue with overloading. Also, after examining the board I don’t see how it can be rated for 100A. Maybe 100A intermittent for a second or two at most is possible without drastically shortening the lifespan or melting something. A continuous load would probably need to be less than 50 or 60A if you want a decent lifespan.5A shouldn’t have killed it so quickly, and it looks to be significantly overrated.
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