EKartGo Project

Electric cars, trucks, ATVs, NEVs - things bigger than a motorcycle.
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hallkbrdz   100 W

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Re: EKartGo Project

Post by hallkbrdz » Oct 14 2020 11:50am

Sheet dropped off, parts should get cut either tomorrow or early next week by this monster. Can't wait to get soldering on the nickel and getting this pack completed.

Image

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hallkbrdz   100 W

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Re: EKartGo Project

Post by hallkbrdz » Oct 22 2020 3:58pm

Just picked up the parts - look good. I think the scaling between mm and decimal inches was a hair off, but nothing that it going to cause a problem. Now to get the MOT solder station completed, soldered, and then fire up the KWeld to attach them to the cells.
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hallkbrdz   100 W

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Re: EKartGo Project

Post by hallkbrdz » Oct 27 2020 1:05pm

Battery base and holder are complete, other than cutting out the upper right corner. Ice storm today, so that will have to wait a day or two.
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Now to get the nickel strips attached to the copper. Not going as easily as hoped. I'm going to try baking them together instead of MOT soldering.

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hallkbrdz   100 W

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Re: EKartGo Project

Post by hallkbrdz » Nov 05 2020 12:26pm

WooHoo... Signed up for more details!
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hallkbrdz   100 W

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Re: EKartGo Project

Post by hallkbrdz » Nov 05 2020 3:41pm

Requested information and testing for the Peregrine 60 144v motor. Nix the heavy under-powered Motenergy motor series, I'll wait and make 2021 fun with this instead.

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hallkbrdz   100 W

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Re: EKartGo Project

Post by hallkbrdz » Nov 12 2020 6:49am

Introduction video for my project. More to come!

Last edited by hallkbrdz on Nov 12 2020 8:09am, edited 2 times in total.

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hallkbrdz   100 W

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Re: EKartGo Project

Post by hallkbrdz » Nov 12 2020 8:08am

Planned episodes:

EP01: Intro - Done!
EP02: A Salt and Battery
EP03: BusBar Mania
EP04: Avoiding Wiring Spagetti
EP05: It's all about the BMS
EP06: Charge!
EP07: Merry Christmas
EP08: Batteries Included
EP09: Ground Control to Major Tom
EP10: Velocity Control and Cleanup
EP11: First Spin!
EP12: Up in Smoke

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hallkbrdz   100 W

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Re: EKartGo Project

Post by hallkbrdz » Nov 16 2020 2:09pm

Episode 2: EKartGo Spreadsheet

This episode shows how to make use of the EKartGo Spreadsheet. Includes selecting a battery runtime, motor choice, and a controller choice to provide resulting battery solutions.


Upperfoot   100 W

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Re: EKartGo Project

Post by Upperfoot » Nov 17 2020 11:30am

Brilliant work! I can see you've put a lot of time, effort and passion into this project, the spreadsheet is especially helpful. Loved your video content on youtube as well

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hallkbrdz   100 W

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Re: EKartGo Project

Post by hallkbrdz » Nov 17 2020 3:11pm

Thanks for your comment! :D

Hopefully it gets better as I go along. There will be much more video from now on.

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hallkbrdz   100 W

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Re: EKartGo Project

Post by hallkbrdz » Nov 20 2020 8:29pm

If you are using the spreadsheet with lower power motors and cylindrical cells, I would download a new copy. I improved it for these, as before it only used high C test results, which are not as valid for low power motors. This improvement uses the runtime to determine the continuous amperage from test results. I've also added a lower power motor and controller as well.

https://drive.google.com/file/d/17zbJZl ... sp=sharing

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nuxland   100 W

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Re: EKartGo Project

Post by nuxland » Nov 21 2020 6:21am

Pouch AMP20M1HD-A C-rate and max amps are not right in your table :)
Due of that also my 4kwh battery specs are wrong in your excel.
As I know AMP20M1HD-A has 15C or 300A.
Electric kart 60kw: viewtopic.php?f=34&t=68543
100v 35Ah LiPo battery: viewtopic.php?f=14&t=97763
100v 25Ah LiFePo4 battery: viewtopic.php?f=14&t=85912
Scooter battery: viewtopic.php?f=14&t=108227#p1582703

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hallkbrdz   100 W

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Re: EKartGo Project

Post by hallkbrdz » Nov 22 2020 10:29am

nuxland wrote:
Nov 21 2020 6:21am
Pouch AMP20M1HD-A C-rate and max amps are not right in your table :)

Due of that also my 4kwh battery specs are wrong in your excel.
As I know AMP20M1HD-A has 15C or 300A.
Noted. I don't remember where I originally obtained those values. The site I referenced in the spreadsheet now shows it as:

"Continuous discharge rating: 10C(200A)"
"Nominal capacity: 20Ah"

So... I'll use your input since you actually have used them and have updated the file. :D

https://www.dhgate.com/product/100-genu ... 1739443904

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