Endless Sphere

If you can add a temperature sensor to monitor the motor windings, that would help you keep an eye on it.

Thanks again for the excellent test. This is a very interesting cell, if I was to go with a 21700 cell; this would be it.

For a mirror, I highly recommend one of these: https://www.ebay.com/itm/Original-Bike-Peddler-Take-a-Look-Bike-Helmet-Eyeglass-Visor-Mirror-Full-Length-/331534929744 it clips to sunglasses or helmets with a visor etc... I can't commute without mine. It takes a few rides to get used to it but its nic...

I am finally ready to purchase one of these hard-case triangle packs soon and I'm wondering how you folks are mounting the battery to your bike.

Thank you for the side by side comparison. I have seen the graphs but having them side by side helps show the difference. As far as actual numbers from the graphs this is what I see: 25R @ 10 amps sags to 3.85 volts at the 0.1 aH mark 30Q @ 10 amps sags to 3.82 volts at the 0.1 aH mark 25R @ 15 amps...

I am thinking of purchasing a 14S6P battery soon (em3ev) but I wan't to make sure I am choosing the correct cell type. I am currently using a 14S5P pack of Samsung 30Q cells but I am starting to feel too much voltage sag for my liking. I am pulling approximately 65 amps peak and about 25-30 amps con...

Hello, can you post a picture of the failure? If I understand correctly, you may be pushing the battery leads beyond what they were rated for. On top of that, if you are also exceeding the maximum discharge rating of the battery, you will kill that battery in no time. How many amps discharge is the ...

Have a look a Golden Motor Canada for some options:
https://www.goldenmotor.ca/categories/B ... Batteries/

I added a Golden Motor kit to a friend's bike about 6+ years ago and they are using the Golden Motor 48V10AH LiFePO4 battery. The first few years were not easy on the pack since it was often drained until it cut out (low voltage protection on BMS). Last year I had to remove the key switch for them s...

The Diamondback only has 130mm dropouts - will this be an issue, especially for mounting the torque arm(s)? I've heard cold-setting mentioned but don't know if that would weaken the frame. The 130mm dropouts shouldn't be a problem on a steel frame. They can usually be spread a bit without any ill e...

Take note of the battery's continuous discharge rate. That will determine if it is suitable for a 1000W setup. If you are running at 48V, then the 1000W will require a minimum of approximately 21 amps continuous amps from the battery. (48V x 21 amps = 1008 watts). I highly suggest reading more about...

Nice conversion. I wouldn't want to be stuck without a freewheel remove tool, do you have one now? The Edge does make a pretty a slick install. I'm sure you could paint the side covers to make the hub motor less noticeable too. This is also the first application of Statorade I've read of in any Magi...

Thanks for the replys. I contacted em3ev and this was their response:

We strongly recommend that any speed greater than 100% is not used. The controller’s lifespan will be adversely effected if it is set beyond 100%. It is supported, but it is strongly not recommended.

I am satisfied with that.

Has anyone successfully programmed an em3ev 12fet controller to use a speed above 100%? I know it works with the standard Infineons / Lyens. I'd like to program mine to 120% but I'm not sure if it works on the em3ev versions.

Looks like a Magic Pie v2. I've owned a couple of them. They changed the spoke design for v2 since the v1 spoke angles were poor. They have pretty good low-end torque, especially when converted to use an external controller. If they still have the integrated controller, I would try and sell them as ...

Hi Dave, the hall sensors can give you a reading but the cycle analyst needs to be configured if you have a CA-DPS (with speed sensor). See the manual: https://endless-sphere.com/forums/viewtopic.php?f=4&t=37964&start=225#p571345 Your top speed should definitely be more than 43 kph on a 26 inch tire...

The wood box (I know it works) really makes it tough to look nicer, maybe some paint on that would help the aesthetics. As for you cables, try shortening any excessively long ones and bundling them together with some split-loom or spiral cable wrap. Make sure to secure cables along the frame too, th...

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You can try contacting em3ev. I know they have done custom battery packs in the past.

I bought a solid torque arm from here (there is a clamping option in there too):
https://endless-sphere.com/forums/viewt ... 31&t=69073

I've been using it with regen and its been solid, even without being clamped.

Gday mate, sounds like a blown mosfet in the controller. Unfortunately I don't have the technical knowledge to guess why it failed the first time.

kneedeep wrote: ↑

Apr 06, 2018 8:35 pm

I am in Waterloo how many spokes is it for? Is there a spot for disc brake?

It's for 36 spokes and it does have a spot for a disk. I may have a buyer for the motor, but I can let you know if the deal doesn't go through.

Thanks for having a look.

private message sent. Thanks.

Sorry I am not sure how to read the results? Can you help me with that please? Thanks! Here is the same config as posted above. http://www.ebikes.ca/tools/simulator.html?bopen=false&motor=MMAC8T&batt=B5216_GA&cont=C40&black=load&k=1&grade=4 The "grade" slider on the left is set to 4%. If you increa...

Can you check to see how many amps you are pulling from the battery before it cuts out? According to your battery spec sheet, the low voltage cutoff is ~ 2.00V per cell or 52V on your 26S pack. You controller is set to cut off at 55V. What is the voltage on your cycle analyst before it cuts out? Fro...