An Electric Scooter Community on a Mission to Stamp out Transportation Mediocrity.

Discuss the Xiaomi mijia mi M365 original and pro versions in this forum. Topics include hardware, software, hacking, riding, and everything in between.
#25189
Madyicstik wrote:
Sat Sep 19, 2020 8:34 pm
This is correct? ;)
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are there any issues with charging this? it would really help if you can post the actual picture of what you did. it will help me alot.
You are shorting out the battery pack. Don't do that! Use a separate charger to charge the 3S pack!
Directly connect the 3s battery in series with the 10s. Use the BMS on the 3s only for charging.

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#52605
[quote=Hherbson post_id=7135 time=1555208445

“Unfortunately the supply of Zero's seems to have dried up. I very rarely see a Zero any more. I've seen people (scrappers?) walking past Ninebots and Xiaomi's and only grabbing Zero's so there must be more value in them.”
[/quote]


There are still even right now THOUSANDS of bird zeros in san diego. More than a ridiculous number of them flood the streets in fact
#52606
LAskooter213 wrote:
Wed Apr 10, 2019 3:49 am
I currently have an M365 scooter with a stock wheel up front and a zero wheel custom installed in the back. The configuration is awesome, it chirps when you hit the throttle and you can pop wheelies no problem:) The scooter accelerates super fast and has torque to go uphill without slowing down at all but the damn thing still only gets up to around 20 mph and the power kind of fades in and out. I am currently running 2 controllers both flashed with the cfw 1000w firmware. So, i have 2 questions...first does anyone know how to increase the top speed? I know there is provisions for that in the custom firmware generator but they still do not let the motors wind up to their full potential. Back emf issue? i dont think it is. Mecanical limitation of the motor? No way, its got more in it. Electronic limitation of the controller? Possible but again i think its capable. I think the issue is in the firmware but cannot be sure. Any insight is appreciated.
Also, might over volting it do the trick? I see a provision in the firmware generator and the controller has a 60v capacitor so i know it can take 52-56 volts without blowing up. Again any info is appreciated.
Yes, i have a “48” volt (actually charges to as high as 59v ). In my white m365 and im running a $25 500w 48v controller. That i think is pushing 30AMPS? anywayz its exactly what the motor wants
#52681
[/img] Yeah I did this the 1st few times but got it wrong as I had a 36 volt battery that was going dead in my scooter so then I grabbed another battery pack but I cut the negative & did it as u said well it drained the 12 volt 3 times to millivolts so then I reverse the process when I had only 1 battery & then it drained the 12 volts first inside the scooter can u tell me what happened here i have an idea but not 2 expert in this subject as I only been on escooters for 4 years??? :?:
#54075
Slydingphantom wrote:
Fri Jun 28, 2019 2:18 pm
LAskooter213 wrote:
Wed Jun 05, 2019 2:19 am
Thanks guys. Ill crack it open over the weekend maybe and photograph the insides to show more detail about how I did it. I need to upgrade a few things anyways and fix a couple of questionable wire splices. Thing also rattles a little bit over bumps and it annoys the sh*t out of me. Still need to mount the horn too. And after that Ill try to post a video of the thing in action. Just to silence those who might dare question my sincerity. Cuz your boy dont f**k around!

And thanks for the kind words homies. I really appreciate the acknowledgement and compliments. Ive got an unfair advantage over most people though...Ive been doing custom cars for years. Aint my first rodeo, ya know? And I aint doing nothing that yall cant do. Aint nothing to it but to do it. And if you f**k it up, do it again till ya get it right.

When I joined this forum I came to learn, of course, (and I have learned A LOT from the members here. Thank you)
but I also came to share what I know and give back. I wasnt born knowing...well....really much of anything at all. None of us were. We have to learn form others and train our minds to eventually be able to teach OURSELVES through curiosity and trial & error. And most people just need a little direction and confidence boost to get started. I remember when I saw my first lowrider car cruising down the boulevard. I was beyond inspired and so curious about how it worked. It was the coolest thing I had ever seen. I needed to know how to make one of my own. Thank you Dave and Gilbert for showing me the ropes and believing in me. sh*t, that was 17 years and 10 builds ago. Time flies.

Because were dealing with scooters, I figured there might be some younger dudes on here or guys that dont get their hands dirty too often. And I want to inspire these people in particular because I feel like this country (especially Los Angeles) is getting too soft and dudes aint building sh*t and fixing sh*t like they used to. There is a national shortage of automotive technicians, plumbers, electricians, carpenters, welders..etc...Im not hating on white collar guys or designers or bankers or salesmen or nothin like that, but if guys dont get the f**k out there and build sh*t, there aint gonna be nothing to sell or design or finance. More dudes need to learn how sh*t f**kin works and be able to fix it and build it and take pride in what they do. Our f**king country is getting soft, man. A lot of dudes cant even mount a spare tire or install a light switch. Thats insane to me. I thought maybe joining a f**king scooter forum would give me an avenue to inspire some youngsters or get some website designer off the computer and into the garage for a few. People come here to try to have a cheap scooter. I want them to leave having a dope, custom, super fast scooter they built themselves. Thats why I take the time to post. It aint about ego, its about the appreciation of dirty hands and the confidence to take on any job in front of you.
Anyways blah blah blah thats my 2 cents. sh*t sounds like a Home Depot commercial or some Donald Trump inaugural speech. But, f**k man, I mean it. Im just trying to say I tried, ya know? SO....Heres something even better than my ranting and unsolicited opinions about the American workforce....a sneak peek at my latest scooter build! Its still in its infant stages but you better believe its gonna be BADASS when Im through with it. And yes its an m365 deck and yes thats an air tank sitting next to it, and yes those are 2 1000 watt controllers underneath it. Thats all I have to say about it for now. Ill post in the appropriate category once i make some progress.
Homies!!!! Lets build some sh*t!!! Goodnight.


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Hi LA,

Have you cracked open to take some pictures yet :D

I'm just curious on how you lay it out.
Well stated sir!
#56411
I currently have an M365 scooter with a stock wheel up front and a zero wheel custom installed in the back.
The configuration is awesome, it chirps when you hit the throttle and you can pop wheelies no problem.

The scooter accelerates super fast and has torque to go uphill without slowing down at all but the damn thing still only gets up to around 20 mph and the power kind of fades in and out.

I am currently running 2 controllers both flashed with the cfw 1000w firmware. So, i have 2 questions first does anyone know how to increase the top speed.

I know there is provisions for that in the custom firmware generator but they still do not let the motors wind up to their full potential. Back emf issue? i dont think it is.Mecanical limitation of the motor? No way, its got more in it.

Electronic limitation of the controller? Possible but again i think its capable. I think the issue is in the firmware but cannot be sure.Any insight is appreciated.

Also, might over volting it do the trick.I see a provision in the firmware generator and the controller has a 60v capacitor so i know it can take 52-56 volts without blowing up. Again any info is appreciated.

Hi-Lo Industrial Trucks Co.
#56412
I think the speed limiting is in the motor controller itself. There seems to be a limit that translates to 30kph, and even with the wheel spinning in the air it won't exceed this speed. I think you could use an aftermarket controller which would allow more speed.

Mr C recently said he hit 23 mph using a Zero motor on a 365 with a aftermarket controller. Get a controller that's bigger than you need. You don't want that to be the weak link in the system.

The BMS will limit output to keep the battery above 36v typically. You can solder wires to the main battery as you would for an additional battery, and feed that directly to the motor controller. Then it's battery voltage be damned, full steam ahead. May cut battery life but spares are cheap.

If you like the Zero model, you can install an aftermarket controller externally (because there isn't room internally) and then install a simple toggle or power switch on the stem to turn power on and off.

Mr C also opened up the Zero battery pack, to connect power wires before the BMS circuitry, to feed the aftermarket controller. He used a 1000 watt motor controller, and with the BMS bypassed, said the Zero does an honest 25 mph and goes like a scalded dog.

The Zero has a very nice large battery, and the system seems happy with this setup.Can't use data logging, so no hard numbers on wattage, but the butt-o-meter says its quicker than a M365 running at 800 watts.

Unfortunately the supply of Zero's seems to have dried up. I very rarely see a Zero any more. I've seen people scrappers. walking past Ninebots and Xiaomi's and only grabbing Zero's so there must be more value in them.
#56789
LAskooter213 wrote:
Sun Jun 02, 2019 1:09 pm
Ok, I think some of you got this down already but I think theres alot of you that are confused about how to actually over-volt your scooter.
Here's what I did. No battery welder, no nickel strip, ( but it would be WAY better if you had these things...im just saying you dont NEED em)...yeah, no special tools or nothin , just a soldering iron, solder, and some wire.

So....the stock m365 battery is just a simple 3p10s 18650 lithium ion battery pack. You have you "3p" part of it...which just means 3 18650 batteries connected in parallel. Then you have your "10s" side of it which means there are 10 of those 3 packs hooked up in series. Assuming all individual battery cells are measuring at 3.6 volts, wiring this up would give you a 36 volt battery pack.
Now if you want to go fast youre going to want to increase your voltage. More voltage (electrical "pressure") is going to provide the" ummph" your battery needs to push more current through the resistance of your motor and make it spin faster and have more torque.
The easiest way I found to add more voltage to your m365 battery is to get another m365 battery and carefully cut off 12 individual cells from the end of it. IF you examine the way the nickel strips are welded to it you will see that it is exactly like the diagram I drew for you below. Try to cut the plastic battery case and nickel strips in such a way that you cut off a 3p4s chunk of batteries. It is possible to do this. YOu may have to solder one or two batteries together with some wire but it beats having to solder all of them or go buy a battery welder. The m365 pack is already configured exactly how you want it...you just need to break of as much as you want to use. Always keep the number of parallel cella in your battery pack the same, as it ensures your battery will charge as evenly as possible. And dont exceed 4 extra packs....it will blow the capacitors and burn your board. Adding a 3p4s battery pack to your battery pack ups your voltage to a whopping 58.8 volts when fully charged! Youll be amazed how much faster your scooter gets with technique.
And so you know you can just hook the positive of your new 3p4s pack to the neg of you original battery pack and then use the pos form the original pack and the neg from your new pack as the primary battery terminals to hook to your controller. And dont forget to program your controller to accept the higher voltage. You can do this with the BOTOX tool kit. If you want even MORE top speed, add 10 inch tires to your wheels and if you want even MORE power replace your back wheel with a bird zero motor and go ahead and over-volt another battery and go dual over-volted 10 inch tire (only on the front...it wont fit the zero motor) and youll be the fastest motherf***er in your neighborhood! Unless you live in Central Los Angeles....Cuz Im the fastest motherf***er round here.... 8-) :D :D
Check out the diagrams I made below and the bottom picture of an overvolt add on battery I cut out of another pack.
Have fun. Im outta here

Note: the diagrams are showing batteries at 36 volts and only showing 3 packs being added to the original battery. Fully charged the individual cells will have 4.2 volts... so total voltage will be 42 v .I just worried it would confuse people that I wrote about 4.2 volts and used 3.6 volts as an example in my diagrams but yall will figure it out. Also BE CAREFUL WHEN CUTTING BATTERY APART TO HARVEST CELLS! YOU CAN SHORT sh*t OUT AND HURT YOURSELF!! BE MINDFUL AND DONT CREATE SHORTS! ALSO WHEN SOLDERING WIRE TO BATTERIES>>>>DO IT FAST> IF YOU GET THE BATTERY TOO HOT IT WILL HURT IT> SO WORK QUICK. USE YOUR BRAIN!!! ITS THE BEST TOOL YOU GOT IN YOUR TOOLBOX
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So i want to over-volt my xiaomi essential (which is basicly the same as xiaomi m365 but with a smaller battery capacity (2p10s)) and i was wondering can i just program my controller to accept the higher voltage then take away the BMS in the original battery then buy a 2p4s battery without BMS and connect it like you did in the diagram. Will it work? If anyone knows feel free to answer.
For anyone wondering why i dont want BMS, i saw LAskooter's other post where he said you dont need it and "it also can interfere with customization and beep and cut power to your scooter."
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