Bafang M500/M600 thread

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
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tsellers   1 W

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Re: Bafang M500/M600 thread

Post by tsellers » Feb 11 2020 3:32pm

That's the video I watched before I decided to use a 52V battery. However, the one difference for the Frey I have, I have to adjust the charger down to be below 58V, as my bike will not power up if it is above 58V. Accordingly, I set mine to disconnect at 57.4V.
Regards, John

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waynebergman   10 kW

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Re: Bafang M500/M600 thread

Post by waynebergman » Feb 11 2020 4:42pm

Great news that a few users are having success with a 14 s 52v packs. Please keep us posted as time goes on as to how the controller lasts with the higher voltage running through it. When these drives were first released there was a lot of miss information regarding the higher voltage and if the mosfats could take it. Bafang told me directly not to run a 52 volt pack through my M600 but also did not explain what would be the weak link if one ran the extra voltage through the motor, my guess is they just did not want any extra motor failures. A 14s pack in my mind would be so much better than the 48v system, I think you would get more speed out of each gear so in effect bigger jumps between your gear selections giving a bike that would need less shifting and of course more overall get up and go.

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tsellers   1 W

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Re: Bafang M500/M600 thread

Post by tsellers » Feb 11 2020 5:26pm

I have noticed a difference with the 52V pack to the extent that it is the 'daily driver' pack. Not just with speed, but there is an overall better feel to it.

I also decided to give a 52V pack a try when I read a post in some other forum from someone that looked at the ratings on the MOSFET's that he found in an M600 controller. I seem to recall something to the effect that for the most part, MOSFET's that are used for 48V usually have a rating that takes them somewhere into the 60's or 70's. That seemed reasonable when I recalled that the controllers for my old Crystalyte Hubs were rated for something like 48-72V.

As noted, I anticipate one potential issue with setting the shutoff voltage to 57.4 might be the way the BMS handles the balance charging. But given the increase in number of charge cycles from that lower voltage, I'm prepared to manually monitor the cells and manually balance charge them if necessary.

I guess next summer will be the true test, at the moment I only have put about 1000 Km's on that motor (if you don't count the 460km's that were on the supposed brand new motor as reported by the controller the very first time I powered it up), and, with winter riding in snow and ice, most of them have not been pulling large current loads for extended periods.
Regards, John

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robocam   10 kW

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Re: Bafang M500/M600 thread

Post by robocam » Feb 13 2020 3:09am

Luna Cycle has developed a quiet gear for the M600. Sounds as quiet if not quieter than the BBSHD under load. I ordered one yesterday, so I'll report my findings.

https://lunacycle.com/blog/luna-develop ... fang-m600/

https://www.youtube.com/watch?v=pf78B2H ... e=emb_logo

Tom   100 W

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Re: Bafang M500/M600 thread

Post by Tom » Feb 13 2020 6:22am

ilegal wrote:
Dec 27 2019 2:36pm
Image

152mm, like my old BBSHD. We´ll see how it goes this weekend.
Hi illegal, where did you find these and how are they working out?

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Re: Bafang M500/M600 thread

Post by Tom » Feb 15 2020 1:15am

Anyone have the skinny on compatible M600 displays? My impression from reading the Luna support thread for the X1 is the DP C240 was the only compatible display.

https://electricbike.com/forum/forum/kn ... o-fs-ebike
Display is a special display that works only with this bike, no other display will work for it. It uses CAN communication so it will not work with any BBSxx / Ultra series display.
However, I've seen an alternate display on alibaba referred to as DPC-23 or DP 230.CAN:

Image

Also, FLX has a larger color display (appears to be a DPC-18 variant with CAN communication) referred to as "G3 Special Edition Display" but specs say it's only compatible with their special edition bikes.

https://flx.bike/products/lcd-display-dz-multi

There are also specific versions of the DPC240 tied to serial number and/or class. Seems like display compatibility is tied to firmware? I suppose it's also possible the display feeds the controller some pre-programmed settings like max speed?

d.rebocho.mateus   1 µW

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Re: Bafang M500/M600 thread

Post by d.rebocho.mateus » Feb 29 2020 10:57am

JBC wrote:Hi, I have a bike built with the Bafang M600. I have only one short test run, everything seems to be functional, enough power.
But I want to install battery-powered lighting. The display shows the lights on - so I assume that the lights can be powered from the motor controller.
Does anyone know what a connector / pin is?
Or better, if someone had the whole wiring diagram.
Hello JBC.

I saw your bike and i was considering build one using the same frame. Can your share your oppinion about your build?
Where did you buy your frame? Did you buy the battery as a pack with the frame?

Best regards

Enviado do meu Mi 9 SE através do Tapatalk


ilegal   10 µW

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Re: Bafang M500/M600 thread

Post by ilegal » Mar 03 2020 2:08pm

Tom wrote:
Feb 13 2020 6:22am
ilegal wrote:
Dec 27 2019 2:36pm
Image

152mm, like my old BBSHD. We´ll see how it goes this weekend.
Hi illegal, where did you find these and how are they working out?
https://hollandbikeshop.com/en-gb/bicyc ... ck-606710/
https://hollandbikeshop.com/en-gb/bicyc ... ck-606711/

They work great, many less bottom hits. I had them on my previous BBSHD, so I´m used to them.

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waynebergman   10 kW

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Re: Bafang M500/M600 thread

Post by waynebergman » Mar 03 2020 5:28pm

Thanks Illegal for posting this info on the crank arms.

Ouch, that web site says 38 bucks to ship to USA. I did not bother to add the second arm to the cart after seeing the high shipping cost. I will try my luck end of March when I am back at my shop and re drill and re tap to get an effective 160mm or so length out of my original arms sent with the motor. Good to know if something goes wrong I can order from these guys however.

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