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Over-volting Shakespeare Glider 55lb thrust

Posted: Jun 03 2021 5:25pm
by goatman
Guy at the marina inherited the motor but the controller was hacked out of it and wired direct to the battery with an on/off toggle switch. if you want reverse you reverse the clips on the battery :D
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i ordered this controller for him from Amazon, 40amp continuous max 60amps ... s9dHJ1ZQ==

just wondering if you can put 24v to this motor

Re: Over-volting Shakespeare Glider 55lb thrust

Posted: Jun 03 2021 10:31pm
by goatman
opened up the controller

63v caps
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mosfets, cant find the data sheet on them, wonder if i can put 4110's in there
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30amp ???? ... 0H60G.html
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underside of board
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that look like it can do 40 amps continuous???

i have a 40amp circuit breaker left over from when i pulled the ice out of the boat maybe ill put it inline to see if it trips and check controller temperature, if the breaker blows then ill try 24v

found thread on over-volting minn kotas

Re: Over-volting Shakespeare Glider 55lb thrust

Posted: Jun 04 2021 5:44pm
by goatman
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handle was chopped for the potentiometer
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cut a piece of stainless to mount controller
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rivet controller case to it
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mount the pot and forward reverse switch
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guess i forgot to take a picture once together
seems to work just fine
going to test it out sunday to see if it trips the 40amp breaker

Re: Over-volting Shakespeare Glider 55lb thrust

Posted: Jun 05 2021 12:27am
by Chalo
It makes me wonder if he'll need a prop with flatter pitch, to make use of the extra RPM.

Re: Over-volting Shakespeare Glider 55lb thrust

Posted: Jun 05 2021 8:33am
by goatman
its a 3 bladed prop that is probably 30 years old, i dont know if it will take the higher rpm
if it was mine id overvolt it,
if the 40 amp breaker trips under continuous max throttle ill over volt it
controller is rated 40amp continuous 60amp max

Re: Over-volting Shakespeare Glider 55lb thrust

Posted: Jun 07 2021 4:47pm
by goatman
ran it for 5 minutes full throttle with the dinghy tied to the dock and the 40 amp breaker didnt blow
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think they found the old controller in the boathouse,
the white plug might be battery meter
going to test it to see if the tiller handle potentiometer was fried
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35 volt caps
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Re: Over-volting Shakespeare Glider 55lb thrust

Posted: Jun 07 2021 7:34pm
by goatman
put 13v to it and with nothing else connected you can hear the relays clicking randomly off/on and the motor terminals will flash 12v and drop to zero. i wonder if its looking for the motor?
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little red wires have 5v constant
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he gave me this 12v pump for helping him out but it doesnt work :D
lets see if i can fix the pump and connect it to the controller
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Re: Over-volting Shakespeare Glider 55lb thrust

Posted: Jun 07 2021 8:32pm
by goatman
seized impeller, motor works, the controller has sensed the motor and the relay kicks on but when trying to connect the pot lines together, nothing happens

red to a black, nothing
white to a black, nothing
white to a blaack while red to a black ,nothing
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start pulling potting?

i have a throttle somewhere here for red/white/black, think the other 2 black just reverse the motor?
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Re: Over-volting Shakespeare Glider 55lb thrust

Posted: Jun 07 2021 10:53pm
by goatman
had the motor spinning at 6volts using the throttle but it wont at 12v

the controller relays are clicking at throttle signal voltage of 2.65v and again at 3.35v
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pulled potting off the bottom to test all 3 relays
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found data sheet on the relays ... 85-97M.pdf

none of the voltage readings on the relay are making sense, think a chip is fried, smd's look fine