Wanting to upgrade my existing Ebike and need help

[harryS]

Yes, you have "Bafang" 9 pin connector. I think Bafang developed it first. Everyone uses it.


You can buy a controller with "waterproof" connectors which will fit the above, or you can buy an extension cable and splice it to your controller.


Many fat bike motors look like the Bafang G60 because they copied it.If you were to buy a true 750W fat bike motor, the 9 pin connector here is too small. It gets more complicated. as they use a bigger connector, which is also copied and can be copied wrong.

Ahicks and I tried a guy who was doing this with a BAM ebike (apparently a blantant copy of the RADRover ...so many copies). Not such a good copy, the alignment marks on the connectors were off by 45 degrees. He couldn't accept that and tried to guess his way with random wire assignments to see what worked. Last I heard, he blew up his electronics and maybe the motor trying to do some unneeded motor wire optimization.

All fun and games until you let the smoke out.

 

[MrCaspan]

What I would really love to see is the ability to have no screen and you use your phone as the screen ONLY if you want to. You would add 3 buttons to the controller case (just like screens have) and a 7 segment display. One button is for power the other two just changes the 7 segment display up or down from 0-F. 0-F would hold pre programmed profiles that you set up. NO screen would be needed on the bike unless you wanted one and if you did then just use your Phone. I think everyone has a smart phone and we don't need another screen! We have these power house computers in our pockets just use them!! these silly displays that have no power or have to be engineered they could just be software on our devices. Even if it requires that you plug in your device to make it work! The controller manufacturer would just release software and user can create GUIs they can share. No more worry about compatibility issues with a screen and a controller

For convince you could duplicate those buttons and 7 segment display to the handle bar to a simple thumb buttons with on off led. All using a universal standard wire. Now you would have to use a computer or a phone to program those settings but after that it would not be required! This needing to have a screen to program the controller just seems really outdated.

 

[MrCaspan]

Also really appreciate everyone's help on this as I am really just getting into this. I have settled on the BaseRunner as it fits inside my Downtube battery pack and works with my motor and that EggRidder. I have put in an email to Grin to see if the EggRuner will work with their controller and also to EggRunner to see if some fancy wiring can make this work.

Lets cross my fingers cause the screen makes or breaks this decision hence my comment above why we even need them!

 

[AHicks]

Pretty much spoiled here. Love my KT LCD3 and and Bafang 750c displays. Easily viewed speed and watts currently in use is a big help making decisions regarding gear and PAS level decisions, so the bike may be ridden in the most efficient manner. Kind of a game I play while riding, coaxing the max out of each battery charge. Rest of the info just icing on the cake and seldom used.

 

[MrCaspan]

Pretty much spoiled here. Love my KT LCD3 and and Bafang 750c displays. Easily viewed speed and watts currently in use is a big help making decisions regarding gear and PAS level decisions, so the bike may be ridden in the most efficient manner. Kind of a game I play while riding, coaxing the max out of each battery charge. Rest of the info just icing on the cake and seldom used.

I really like that display also but it takes up so much space. There is no where to mount my phone with that screen attached. Just make a bluetooth/wireless controller and use my phone display for that stuff. Seriously feel like controllers are behind the curve here REQUIRING they have to have a screen, Why?

 

[tomjasz]

Seriously feel like controllers are behind the curve here REQUIRING they have to have a screen, Why?

There are numerous threads across the many eBike forum technical threads where DIY fellows have gone without a display on the handlebars, or in some cases hiding the display somewhere on the bike.

 

[MrCaspan]

There are numerous threads across the many eBike forum technical threads where DIY fellows have gone without a display on the handlebars, or in some cases hiding the display somewhere on the bike.

Yeah I was reading some of those but they are hacks.. It shoudl be a standard that either with a cable or Bluetooth wireless program the controller and an up down button to select a profile. This is just me being an IT guy imagining how to simplify something!

 

[tomjasz]

Should.

 

[AHicks]

Opposing viewpoint. I don't even own a smartphone.....and have no intention of dealing with something like that to see how many watts I'm pulling at any given moment.

 

[MrCaspan]

Opposing viewpoint. I don't even own a smartphone.....and have no intention of dealing with something like that to see how many watts I'm pulling at any given moment.

Well if you can imagine how much information you can get from a very low powered display imagine what you could do with a device connected to the cloud. You could connect your bike into cloud learning and it could perfectly adjust your motor controller on the fly 1000x a second for the optimal performance based on sitting standing wind, jumping.. It's just that way my brain thinks l no problem with screens

 

[Westlafadeaway]

There is no where to mount my phone with that screen attached. Just make a bluetooth/wireless controller and use my phone display for that stuff. Seriously feel like controllers are behind the curve here REQUIRING they have to have a screen, Why?

Hi Mr. C- I read a post on a bike forum warning mounting your phone to your handle bars- the rattling damages your camera and it starts having issues with camera focus. I used to put my phone on my bike but took it off now after hearing that.

 

[legsofbeer]

Just make a bluetooth/wireless controller and use my phone display for that stuff. Seriously feel like controllers are behind the curve here REQUIRING they have to have a screen, Why?

I dismount and lock up my bike outdoors at least six hundred times a year. There is no way I can do that and not at least once a year forget to remove my phone, and I doubt anyone else could either. So far I have at least once forgotten to turn off the battery via key.

 

[MrCaspan]

Hi Mr. C- I read a post on a bike forum warning mounting your phone to your handle bars- the rattling damages your camera and it starts having issues with camera focus. I used to put my phone on my bike but took it off now after hearing that.

Great point. I guess for phones with OIS this could be an issue.

 

[legsofbeer]

You could connect your bike into cloud learning and it could perfectly adjust your motor controller on the fly 1000x a second for the optimal performance based on sitting standing wind, jumping

Hard pass. I don't want my bike affected by AWS and router glitches, and I sure as f*ck don't want forced upgrades (oh, you want to go now? Upgrade is 20% installed, stand by for reboot in 30 minutes) Had an android phone pull this on me right when I needed to use it.

Not to mention the tracking of usage patterns and sale of the data.

 

[MrCaspan]

So here's where I am .. Looks like I am going to go EggRider v2 its the right minimalist display I wanted. Now I have to pair a controller with it for my hub motor with a Higo Z910 plug on it. What would you suggest for a controller that would have tons of power for my motor.. I know I could burn out my motor if I don't set limits using the EggRider. I would rather have a more powerful controller working at 60% all day then a lower power controller working at 100% all day.

Any suggestions for a controller that would have compatibility for the EggRider v2 (higo 5 pin) for the screen and higo Z910 for the motor and lets say 30A controller that will give me 1260 watts

 

[tomjasz]

So here's where I am .. Looks like I am going to go EggRider v2 its the right minimalist display I wanted. Now I have to pair a controller with it for my hub motor with a Higo Z910 plug on it. What would you suggest for a controller that would have tons of power for my motor.. I know I could burn out my motor if I don't set limits using the EggRider. I would rather have a more powerful controller working at 60% all day then a lower power controller working at 100% all day.

Any suggestions for a controller that would have compatibility for the EggRider v2 (higo 5 pin) for the screen and higo Z910 for the motor and lets say 30A controller that will give me 1260 watts

EggRider has a good compatibility list and a very helpful Facebook page.

 

[MrCaspan]

I thought you're going for the Baserunner?
Did Grin give you an answer whether or not it would work with the EggRider?

If you're concerned about connectors, I think Grin can put whatever connector you prefer.
Grin's controllers aren't mass produced by robots, they're hand made.
Connecting whatever the plug you have on EggRider shouldn't be that hard.
(I'm sure they would still need the wiring positions though)

Here's a factory tour of Grin Technologies.
Watch @ approx. 59:00 in the video.
Their controllers are hand made.

I was told it could possibly work but it would be shoehorned in. I would need to use the TRS connector to get TX and RX then steal +/- from another wire and they said in the end I would only get throttle no PAS. Then I looked at ACI as they are 2 blocks away from me and this BAC855 controller but it's more ment to be sold as a kit by manufacturer and pre setup with all the specs for your motor etc and is $600 for the dev kit. They said very soon their new down tube controller would be out and possibly consumer software to programme it with.

So I'm just going to a generic controller with the EggRidder v2

 

[tomjasz]

Baserunner

Check compatibility | EggRider user manual

Personalize your ebike ride with EggRider V2 display

manual.eggrider.com

 

[MrCaspan]

What did you mean by ACI? Did you mean ASI?

Anyways, BAC855 controller is $600?

Because Luna sells BAC800 for $50.

ASI BAC 800 Controller 72v Version

Distributors and builders of life changing high power electric bikes.

lunacycle.com

Yes sorry ASI, they sell to anyone that wants a controller But yes that price is right $600. It comes with engineering support and again is meant to be used by a manufacturer that would pair this controller with a motor and use their software to have it all preset up. It can be used by a normal user but they only sell it in this way.

 

[MrCaspan]

I guess this is the reason here, Quote from LUNA:

The drawback of real Sine Wave controllers are they are very difficult to program to work correctly with each motor type, so we are only offering this controller at the moment for a limited number of motors.

So if I don't have the specs on my motor AND I don't have ASI's software that you only get by buying a dev kit then you are kind of SOL unless you can find someone that sells them pre programmed for your motor. Which is what the support guy was saying is normally you buy a motor and controller paired already from someone that has done all the hard work!