Search found 116 matches

by Quinc
Sep 20 2019 11:42am
Forum: Items for Sale - Used
Topic: KDZ48400 24v-48v 400a controller, contactor, cables, etc
Replies: 3
Views: 395

Re: KDZ48400 24v-48v 400a controller, contactor, cables, etc

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Lots of settings you can configure for a perfect ride:

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by Quinc
Sep 20 2019 11:39am
Forum: Items for Sale - Used
Topic: KDZ48400 24v-48v 400a controller, contactor, cables, etc
Replies: 3
Views: 395

KDZ48400 24v-48v 400a controller, contactor, cables, etc

-Kelly KDZ48400 controller
-48v contactor
-J1 cable
-Programming cable

Had this on a race kart powering a 1hp motor. Haven't used the kart in a while so clearing out space.

300$ shipped for all of it.

https://www.kellycontrollers.eu/kdz48400
by Quinc
Sep 19 2019 12:24pm
Forum: Large EV General Discussion
Topic: Anyone build a kart with a Differential Motor?
Replies: 2
Views: 369

Anyone build a kart with a Differential Motor?

Want to build a beach kart capable of hauling 500+ pounds through the soft sand and wondering if anyone has a 48-60v Electric Differential Motor and axle combo they would recommend?
by Quinc
Sep 10 2019 11:32am
Forum: Large EV General Discussion
Topic: For an electric kart, what is the relationship of torque and power?
Replies: 5
Views: 417

Re: For an electric kart, what is the relationship of torque and power?

This calculator has been spot on for me: https://www.bmikarts.com/Go-Kart-Gear-Ratio-Speed-Calculator With two of those boma 60v motors you will have a ton of torque so should be able to gear it pretty light. For a speed controller you should look into something like the Kelly 300-400amp brushless t...
by Quinc
Sep 02 2019 12:18pm
Forum: Battery Technology
Topic: Does a 12S liPo balance charger exist?
Replies: 27
Views: 1005

Re: Does a 12S liPo balance charger exist?

I thought we were talking about Lithium Polymer chemistry here. Well, i guess it doesn't matter if this thread goes off topic, I don't think the O.P. is coming back. I am going to sell it all off and buy a onewheel instead. :) Anyone want to make deal on an electric race kart? 400a kelly controller...
by Quinc
Aug 25 2019 10:32am
Forum: Battery Technology
Topic: Does a 12S liPo balance charger exist?
Replies: 27
Views: 1005

Re: Does a 12S liPo balance charger exist?

Thank you for the replies! Right now I am using an R/C 1200 watt charger with 12 xt90 and balancing connections to plug all the lipo packs separately and balance charge. (R/C turnigy packs) I am hoping to find something that is just a straight plug in style like an ebike so the wife and kids can cha...
by Quinc
Aug 23 2019 5:09pm
Forum: Large EV General Discussion
Topic: Industrial Motor gokart build
Replies: 55
Views: 8117

Re: Industrial Motor gokart build

How are your lipos holding up? Still holding up great. I built the battery pack much beefier then I needed. The batteries do not even get warm. I also balance charge at .5C after each use. It only gets ridden about once a month now. Going to sell it and and build an electric beach kart next.
by Quinc
Aug 23 2019 5:02pm
Forum: Battery Technology
Topic: Does a 12S liPo balance charger exist?
Replies: 27
Views: 1005

Does a 12S liPo balance charger exist?

I have a 12S 25000mah lipo battery pack (turningy r/c batteries) I am looking for a plug and play balance charger for. Something I can plug in and let it sit overnight. *With batteries in fireproof container.
by Quinc
Mar 16 2019 10:13pm
Forum: Large EV General Discussion
Topic: Go Kart Update
Replies: 74
Views: 7411

Re: Go Kart Update

Well at 80hp and 90ft lbs of torque, with a 2:1 (15f / 30r) gear ratio I should be able to get to 102 mph at 6000rpm, though because I have so much torque I could gear much more aggressively 1.6:1 (15f / 24f) and get to 128 mph (102 mph at 4800rpm) Holy sh1t! that is going to be insane! :shock: Pos...
by Quinc
Mar 16 2019 10:03pm
Forum: Large EV General Discussion
Topic: Large EV? - I have one of those!
Replies: 7
Views: 1524

Re: Large EV? - I have one of those!

Awesome! Did you make or buy those tires? :D
by Quinc
Feb 13 2019 3:03pm
Forum: Large EV General Discussion
Topic: Dune Bug-E (Retro Build circa 2009/10)
Replies: 4
Views: 1234

Re: Dune Bug-E (Retro Build circa 2009/10)

Hope you do! With the latest battery tech, motors, and cheaper prices you should be able to make something awesome. :D
by Quinc
Feb 12 2019 1:18pm
Forum: Large EV General Discussion
Topic: Dune Bug-E (Retro Build circa 2009/10)
Replies: 4
Views: 1234

Re: Dune Bug-E (Retro Build circa 2009/10)

Awesome build! What are you working on now?!
by Quinc
Jan 29 2019 5:48pm
Forum: Polls & Surveys
Topic: When Windows 7 is dead in 2020 what OS will you migrate to??
Replies: 64
Views: 4402

Re: When Windows 7 is dead in 2020 what OS will you migrate to??

Just like XP I will keep using it as long as possible. 8)
by Quinc
Jan 28 2019 7:29pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Razor MX650 mini bike build
Replies: 2
Views: 659

Re: Razor MX650 mini bike build

Correct! 48v to stock 36v controller. Plus running the smaller motor sprocket means she ain't working as hard so should not be an issue. Or at least last me until I upgrade. I will grab a pic of the beer holder in use next ride. :D
by Quinc
Jan 27 2019 11:38pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Razor MX650 mini bike build
Replies: 2
Views: 659

Razor MX650 mini bike build

Been riding this thing into the ground for a few years now. Picked up a brand new one and figured it was time to make the older one more adult friendly. Goal is enough torque to be able to climb some decent dirt trails and still have 5+ mile range. First mod - added a beer holder Second - changed ou...
by Quinc
Jan 22 2019 6:38pm
Forum: Battery Technology
Topic: RC Lipo pack inspection, series/parallel charging, and lifespan/safety tips
Replies: 172
Views: 74988

Re: RC Lipo series charging tutorial

Please school me on why I can charge my 4S lipos more after they have been balanced charged to "Full" 45a charger charging 6x turnigy 4S 5000mah 25C batteries in parallel.(30ah total charging them at .5C) Charger completes says they are full. But if I hit stop and start again they will take another ...
by Quinc
Jan 21 2019 8:47pm
Forum: Large EV General Discussion
Topic: Industrial Motor gokart build
Replies: 55
Views: 8117

Re: Industrial Motor gokart build

Nice summer day and dry roads today! Put on the 15T sprocket and she screamed all the way to 38mph on the dot! Maybe some loss of torque but not enough to notice. The motor did get much warmer though. Maybe 70ish degrees on the outside after multiple high speed runs.
by Quinc
Dec 27 2018 7:23pm
Forum: Large EV General Discussion
Topic: Industrial Motor gokart build
Replies: 55
Views: 8117

Re: Industrial Motor gokart build

Larger sprockets on the way! 12T(30mph) 15T(38mph) and 18T(45mph)

And a 25T for my 3.6hp motor I am going to mount up next.
by Quinc
Dec 24 2018 3:26pm
Forum: Large EV General Discussion
Topic: Industrial Motor gokart build
Replies: 55
Views: 8117

Re: Industrial Motor gokart build

Top speed so far is 25mph. No matter how many volts I throw at all her the motor will not spin faster then 5k rpms. Thinking the motor might have a governor.. :cry: It's probably the controller, not the mpotor that has a limit. One way to speed things up is to install either a larger motor sprocket...
by Quinc
Dec 24 2018 12:23pm
Forum: Large EV General Discussion
Topic: Industrial Motor gokart build
Replies: 55
Views: 8117

Re: Industrial Motor gokart build

Top speed so far is 25mph. No matter how many volts I throw at all her the motor will not spin faster then 5k rpms. Thinking the motor might have a governor.. :cry:
by Quinc
Dec 22 2018 2:08am
Forum: Large EV General Discussion
Topic: Industrial Motor gokart build
Replies: 55
Views: 8117

Re: Industrial Motor gokart build

Trail was a lot bumpier with tree roots then I was expecting. :shock:
https://youtu.be/sDAMkK42UAI
by Quinc
Dec 17 2018 6:07pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Razor MX650 15kw+ RV 120 Pro
Replies: 3
Views: 677

Re: Razor MX650 15kw+ RV 120 Pro

Any updates!? There are some 100amp brushless kelly controllers of a skateboard in the sale section that might work for you. Have you looked at doing hub motors at all?