Search found 177 matches

by soyachips
Yesterday, 20:13
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

Well done! Very smooth and quiet. Did you end up sealing the battery pack with silicone or something? You must be stoked :) Yes very happy with the way it all went except that I need to replace one of the cell groups so once I’ve got the replacement cells I’ll rebuild the pack (again!) with silicon...
by soyachips
Tue, 03 Dec 2019, 21:10
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250



by soyachips
Tue, 03 Dec 2019, 20:48
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

OK it’s been a while again so there are a few updates. The EV Expo was great to be part of. Lots of interesting conversations with people and great to see all the other conversions people have done. I didn’t quite manage to get it running for the show but it was all together at least. It didn’t take...
by soyachips
Sun, 01 Dec 2019, 17:46
Forum: For Sale/Wanted
Topic: WTB Headway cells
Replies: 1
Views: 230

WTB Headway cells

Looking for a few 15ah and 10ah cells to replace some bad ones. Does anyone have any they’re willing to part with?

Thanks!
by soyachips
Fri, 01 Nov 2019, 03:45
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

Thanks, looking forward to working out speed and range too. This will be my commuter to work so I don’t need it to go super fast, as long as the acceleration is good and I can get around comfortably without worrying about the range it should be good. I’m hoping the 6kW motor will be enough as I was ...
by soyachips
Wed, 30 Oct 2019, 03:56
Forum: Electric motors and controllers
Topic: Grounding shielding around motor cable
Replies: 7
Views: 414

Grounding shielding around motor cable

The cables that comes out of my hub motor have shielding around them and someone recently said I should ground the shielding to the bike frame. Is this correct and are there any tricks to doing this?
by soyachips
Wed, 30 Oct 2019, 03:38
Forum: Batteries, charging, management and monitoring
Topic: My latest battery build
Replies: 7
Views: 1270

Re: My latest battery build

Thanks @coulomb, I’m using the 72V Satiator charger from Grin Technologies so will check with them if this will be an issue or not. Also need to consider what happens when a cell hits HVC and then drops down as I don’t think the BMS has a latching relay. More food for thought :D
by soyachips
Wed, 23 Oct 2019, 15:48
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

I'm trying to get the bike ready to show at EV Expo in Sydney this weekend so got some more work done yesterday. Made a plate to mount a waterproof box to hold things like 12V battery, contactor, fuse and other bits and pieces. Most of the high voltage stuff is in and wired up so its mostly the 12V ...
by soyachips
Mon, 21 Oct 2019, 13:28
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

The certifying engineer suggested I use something to isolate vibration from the frame to the batteries so I'm using a couple of sway bar bushes that the original engine mounting bolts will go through to hold the box.
by soyachips
Sun, 20 Oct 2019, 19:33
Forum: Batteries, charging, management and monitoring
Topic: Testing a traction pack before using
Replies: 22
Views: 5026

Re: Testing a traction pack before using

OK great ... I might still have some halogens from when we switched them out for LEDs :)
by soyachips
Sun, 20 Oct 2019, 19:23
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

Made some more progress over the last week or two Added BMS leads Installed rear brake caliper bracket Finished the bracket on the back of the battery pack and installed it Temporary plate to hold the controller. Still working out where this will go and how to keep it cool. IMG_7724.JPG IMG_7720.JPG...
by soyachips
Sun, 20 Oct 2019, 18:00
Forum: Batteries, charging, management and monitoring
Topic: My latest battery build
Replies: 7
Views: 1270

Re: My latest battery build

So I guess the charger realises the pack is no longer connected and stops charging? The charger I have doesn’t come with an enable line so I’m planning on using a relay that has 12V DC on one side and 240V AC on the other to turn off the charger if any cell goes too high. Can you see any issues with...
by soyachips
Thu, 17 Oct 2019, 20:57
Forum: Members Machines
Topic: Brendon_m Moke
Replies: 159
Views: 12863

Re: Brendon_m Moke

I meant this but on closer inspection it looks like it might just be a connector or where the wires go into the controller

006E9D15-6656-42B4-BA1E-8D71FC8ACFDC.jpeg
006E9D15-6656-42B4-BA1E-8D71FC8ACFDC.jpeg (84.12 KiB) Viewed 439 times
by soyachips
Thu, 17 Oct 2019, 19:14
Forum: Members Machines
Topic: Brendon_m Moke
Replies: 159
Views: 12863

Re: Brendon_m Moke

Nice Tetris skills!

On the left around the smaller cables is a thingy like those ferrite beads on monitor cables. Is that to stop EMI from the controller interfering with something? What’s it around?
by soyachips
Thu, 17 Oct 2019, 18:57
Forum: Batteries, charging, management and monitoring
Topic: Testing a traction pack before using
Replies: 22
Views: 5026

Re: Testing a traction pack before using

Awesome thanks everyone for the replies. Looks like I need to go out an buy a bar heater ... we don’t have one because they’re not energy efficient! :lol:
by soyachips
Wed, 16 Oct 2019, 18:53
Forum: Batteries, charging, management and monitoring
Topic: Testing a traction pack before using
Replies: 22
Views: 5026

Re: Testing a traction pack before using

You can run most resistive AC loads on DC, and universal motors are happy on DC too, they just spin slower. So set up a power board and start plugging AC loads in until you get to your desired currents. Ok so simple things like a toaster, kettle etc will run fine on DC? I picked up a cheap IR therm...
by soyachips
Wed, 16 Oct 2019, 15:07
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

francisco.shi wrote:
Wed, 16 Oct 2019, 03:21
How much did it cost to make the part from 3Dhubs and how long did it take?
It would have been around $320 but I paid extra to get it done quickly so ended up being $370 and took 2 weeks.
by soyachips
Wed, 16 Oct 2019, 15:02
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

Doh! At least it wasn’t too expensive :?
by soyachips
Wed, 16 Oct 2019, 07:08
Forum: Batteries, charging, management and monitoring
Topic: My latest battery build
Replies: 7
Views: 1270

Re: My latest battery build

A negative contactor is just a contactor on the negative (0v) line out of the pack. The idea being it allows you to isolate both positive and negative outputs and it's safe to touch either terminal and there are no hazardous voltages without the system being powered up. In terms of isolating the ch...
by soyachips
Tue, 15 Oct 2019, 21:41
Forum: Batteries, charging, management and monitoring
Topic: Testing a traction pack before using
Replies: 22
Views: 5026

Testing a traction pack before using

I've almost finished building my traction pack and wanted to see how others test them before using them. I've seen people using elements in a bucket of water or a series of light bulbs etc but still not sure what's the best thing to do and exactly what to look out for. Also seen people using IR ther...
by soyachips
Tue, 15 Oct 2019, 21:34
Forum: Batteries, charging, management and monitoring
Topic: My latest battery build
Replies: 7
Views: 1270

Re: My latest battery build

I know this thread is old but very nice looking pack!!!

I like how the Anderson connectors are mounted against the box. I'm rethinking how to do mine now.

Also what's a negative contactor and what did you mean about it serving as an isolation point for the charge circuit?
by soyachips
Tue, 15 Oct 2019, 21:09
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

Also just got the rear brake bracket back from 3DHubs ... super impressed with the part and can't wait to put it into the bike!

IMG_7732.JPG
IMG_7732.JPG (65.76 KiB) Viewed 1209 times
by soyachips
Tue, 15 Oct 2019, 21:04
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

brendon_m wrote:
Tue, 15 Oct 2019, 17:27
I used this
https://au.element14.com/mean-well/ddr- ... dp/3002980

Its 67.2v to 154v
That's looks great. Will keep it in mind if mine doesn't work out!
by soyachips
Tue, 15 Oct 2019, 21:02
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

I actually ordered this one from AliExpress https://www.aliexpress.com/item/32888136080.html?spm=a2g0s.9042311.0.0.2e724c4dH6UCry I'm using 4 x 10ah Headway cells as my 12V battery so I'm assuming that handles most of the load and the converter just helps to keep the cells charged. I tried to find o...
by soyachips
Tue, 15 Oct 2019, 20:52
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 75
Views: 4613

Re: Soyachips’ Electric FZR250

Sorry @Richo can you explain what this means?
Richo wrote:
Tue, 15 Oct 2019, 13:13
Ah I had a quick look yesterday but your main traction pack doesn't fit into the universal input AC supplies.