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Old 04-27-2020, 11:48 AM   #21
Sergio
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Default Re: High amp draw and battery drain, help!

It is not a setting about current, it is the one about speed: "M1/M2 FWD SPEED".
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Old 04-27-2020, 01:13 PM   #22
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Default Re: High amp draw and battery drain, help!

Gotcha.

I'd much prefer to not limit my speed but will lower it to see if it helps with amp draw. Thanks.
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Old 04-27-2020, 01:35 PM   #23
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Default Re: High amp draw and battery drain, help!

I monitored the ARM CURRENT in MODE 2 which has a FWD limit of 20. The current is lower, about 110-120. That's a drop of about 30 amps which is great but still higher then I was told to expect as normal. Is 70-80 amps a reasonable expectation on level ground with 1 rider. I've also notice a new sound coming from the motor area.

https://www.dropbox.com/s/jnjvzn7kx1..._2341.MOV?dl=0
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Old 05-01-2021, 04:29 PM   #24
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Default Re: High amp draw and battery drain, help!

I’m still dealing with this issue. I replaced both the axle bearings which didn’t seem to be an issue but had the axles out so went ahead anyway. I also dropped the pan on the gearbox and inspected the input shaft, mid shaft, and main drive gears. Everything looked good. I ohmed all of my main current cabling and didn't find any abnormal resistance. Brakes have been checked and readjusted so no drag and tire pressure is higher than I would like it at 26psi to ensure no excess tire drag.

Solenoid gets warm, not hot, and controller temp is also good.

My thermostat in my motor is set to trip at 140C and it will regularly do so on long rides (1 or 2 adults). Or even shorter ones with aggressive stopping and starting.

I did just notice that the main armature cables off the motor are getting hot.

I also recently replaced the cover band with a vented one. Not sure if it’s helping yet but it certainly makes the sounds from the motor more noticeable ( kind of like a whining and an occasional scratching sound). Hopefully not arcing.

I’m about do for a new battery pack and will be going lithium. Hopefully the 400lb weight cut and more consistent voltage will make a significant impact in reducing both motor heat and amps.

Any additional input on why and what I could do to resolve this would be a HUGE help.

I’ve invested heavily into this cart and would prefer to keep it. Thanks
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Old 05-02-2021, 08:50 AM   #25
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Default Re: High amp draw and battery drain, help!

Not sure but I’m thinking some of the heat from the cables could be coming from the heat escaping the motor through the vented cover band.
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