Bafang Mid Drive M510 motor controller only supplies light to the front lamp?

guerney

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Sep 7, 2021
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Well if they only draw 3.32mA then you can mount 150 of them on the front of your bike.
I'm surprised I haven't been arrested for crimes against good taste already.


 
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guerney

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My reasonably accurate ANENG AN8008 disagrees with the Neoteck DM4000 PRO. I simply moved the probe leads from one DMM to the other, haven't touched anything else.


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guerney

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I have a Bafang Mid-drive M510 motor, and the controller only supplies 12 Volt power to the front light on my - MarioBike Bird -
Less current is drawn at 12V than at 6V. I'll still be disconnecting it from my BBS01B controller - fewer outgoings the better, like my current account.


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Trevor George

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Jun 23, 2014
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Less current is drawn at 12V than at 6V. I'll still be disconnecting it from my BBS01B controller - fewer outgoings the better, like my current account.
I agree about your Current Bank Account (and mine) but if the current draw is so low it is well within the tolerances of the output from the Contoller, so if it's useful to you I would leave it connected as I plan to do with mine, despite some cautionary warnings, as the overall current draw of both front and rear light are still way under the maximum output of the controller :)
 

guerney

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I agree about your Current Bank Account (and mine) but if the current draw is so low it is well within the tolerances of the output from the Contoller, so if it's useful to you I would leave it connected as I plan to do with mine, despite some cautionary warnings, as the overall current draw of both front and rear light are still way under the maximum output of the controller :)
To switch that light on manually during the day (it's automatically switched on at night), I have to long press the switch for lights on the DPC-18 display's display's button pad - every second counts, you only live once! It'll be faster and convenient to switch on, when it's soldered to my battery like the others, routed through one of the other or additional switches. At some point, I've go to reroute power and switching for lighting anyway, because I want to add ebike battery powered rear lights (headlights made red, preferably flashing) to my bicycle trailers, plus maybe indicators on my bike if necessary. Haven't decided if indicators are absolutely necessary yet.


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Trevor George

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It'll be faster and convenient to switch on, when it's soldered to my battery like the others, routed through one of the other or additional switches.
WOW !! amazing setup . . but I wouldn't want to go anywhere near a 48 volt battery and start soldering, which is why I took the easy route and just used a Y-shaped plug-in connector into the front-light wiring loom. Good luck with all of those lights and indicators if you do connect in :) Maybe even a "flashing blue light" for those emergency rides haha :D
 

guerney

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but I wouldn't want to go anywhere near a 48 volt battery and start soldering
If you did solder lights on, perhaps your battery would send messages reporting abnormal function via CAN bus?

I saw a video recently on Youtube, of a guy powering a CAN bussed Bafang motor with generic two wire battery.


Maybe even a "flashing blue light" for those emergency rides haha :D
If that wasn't illegal, I would have done it already - I have heat resistant blue acetate sheet. Haven't been stopped by the cops yet, ridden past them many times. These lights stop cars pulling out on front: three bright flashing headlights never fail to get me noticed by drivers in daylight, but they're too nauseating for me to view at night, even though they're all angled down at the road.
 
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guerney

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I don't experience close passing anymore either, or close cutting in front overtakes:


 

Danno83

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Sep 13, 2024
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A little late to the party with this thread, but thank you for sharing your ideas with the lighrs running off the motor.

I read a lot of negative comments, and the opinions suggesting I’d end up with an explosion the size if Chernobyl if I decided to replicate your idea.

Anyhows, I decided to take a positive approach coupled with a bit more research. I found in the Bafang tech specs that the light output is rated at 12v and 12w, and there is separate feeds from the motor for the front and rear lights.

I found the genuine Bafang cables on eBay for £20 that plugged straight in, I bought some lights off Amazon for £30 that are correctly rated and powerful. All wired in and working perfectly, basically did the same as you did in your video so thank you for the post, it was most helpful.
 
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