Endless Sphere

Great, thanks for the information Pajda!

Pajda wrote: ↑

Jul 10 2019 7:03am

... I am more focused on LG INR21700H40 as a direct (and slightly cheaper) comepetitor to Samsung 40T.

That should be an interesting cell. Have you found any datasheet's or discharge graphs for that cell? What price did you see for the H40?

I would just find and light that works in something like the 8V-80V range and run it directly off of the pack voltage (with a fuse if you like). Then there is no external converter needed.

I want to move my Hubsink set over to a new motor. Is it necessary to remove the thermal grease from the hubsinks before attaching to the new motor? I have also ordered a few tubes of this to re-apply if necessary.

Thanks!

The bike has been performing well. I recently got to rip along some short hard packed trails that were an absolute blast around 40-50 km/h. There were many ups and downs and even a bit of air. The clearance between my rear fender and racks is not enough so it kept smashing after hard hits. The bike ...

Awesome build! Yep, that rim is trashed haha! I was wondering about your experience with Statorade; did you notice a difference while riding after a few runs? ... As i remember from the statoraid thread, I should just add until I get higher amps whith the wheel in the air. And it should take a littl...

FYI My em3ev battery order arrived today (July 5) and was in good shape. The order was placed June 5. The battery left their facility on June 11 and the tracking number was given to me on June 17. It arrived in Canada (Richmod, BC) on June 28. I paid $0 import fees/duties delivered to my door. The d...

Looks like a 4T in a 24" wheel would probably be more ideal for you, since you have so much amp output at the ready. Here's a simulator link for you with the kV of the 5T motor adjusted to that of the 4T. https://www.ebikes.ca/tools/simulator.html?motor=Leaf%205T&cont=cust_80_200_0.03_V&wheel=24i&k...

Thanks for the reply neptronix. I am using the 5T winding. The 5T was my choice mainly because I was somewhat limited with my max battery amps I could deliver but I am now running enough for 80A peak discharge.

Hello everyone, I'm looking for some thoughts and opinions. I've been running a leafbike 1500W for over a year now and I'm pretty happy with it but I like the idea of more lbs of thrust and greater efficiency (cooler running motor) of a slightly smaller wheel. I also currently use field/flux weakeni...

I've ordered a few from them. On the last one, I don't recall paying much or anything at all for duties. Em3ev does a good job of trying to make sure their customer doesn't get hit with import fees/duties. I have another one on the way this week from them so I can let you know after it arrives.

Keep reading until you do understand. It sounds like the key thing you are missing is current. Voltage X Current (Amperes) = Power (Watts)

Here is a good article on motor power ratings etc..:
https://www.ebikes.ca/learn/power-ratings.html

How many Samsung 50Es in parallel were you considering? Take a look at this site to give you an idea how they would perform vs 30Qs or 40Ts etc...:
https://lygte-info.dk/review/batteries2 ... arator.php

One more bump...

Awesome looking build. Thanks for posting. What kind of current are you pulling from your 25R battery pack?

I have a similar quirk when using flux weakening but it was only when I let off the throttle. I had come across this post which seemed to explain it fairly well. Maybe this is what you are experiencing?:
https://endless-sphere.com/forums/viewt ... 4#p1401978

It is useful to charge to the full amount once a month or so, to ensure that the BMS will balance all of the cells. However, I continue to be shocked that nobody is making a BMS that will balance the cells at 4.1V... Someone correct me if I am wrong but I believe since em3ev has been using a smart ...

Do you have another build thread before the refresh? Did you get the brake lights working? I am putting together AWD and was wondering what you think about AWD do you like them? I don't have another thread for this bike but I do have an older picture (before the refresh): Magic Pie 2 on rear Infine...

Note to future self:

https://e4bike.ru/page/battery-shape-configurator I *might actually* be able to fit 14S7P of 21700 cells in my frame using a "bulged" version of the em3ev 6P pack layout.

We usually see a complaint or two about this right around spring time with em3ev every year when they get overloaded with orders. em3ev is a very good company except for the spring-summer communication wart. I have no doubts you'll get your money back or things will get resolved. For the record, I ...

It sounds like a poor connection on one of the hall sensor cables. Does it change the behavior if you unplug the motor's hall sensors from the controller?

Nice work on the new pack. What cells and what cell holders did you use?

Personally, I would pick the 5P of Samsung 50E since it would involve less connections and can easily provide the 20 amps discharge current. Other factors you might want to consider would be cost, size, weight and cycle life. If you haven't seen this already, try this site to compare their discharge...

I've downloaded v3.02 but it doesn't find anything when scanning for bluetooth devices. The original app that em3ev sent me is still working fine. This is on Android 7.1.

rockstar195 wrote: ↑

May 14 2019 6:54am

9C Clone

Do you know the magnet height on your motor? It is possible you just don't have enough copper to have it perform the way you want.

What kind of battery current are you feeding the Phaserunner?
What kind of cells and how many in parallel are used for your 72V pack?