Search found 954 matches

by mistercrash
Mar 28 2020 1:31am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Quality of Kelly Controllers
Replies: 3
Views: 415

Re: Quality of Kelly Controllers

They are OK. I have been running mine with 20S leaf cells and a 5KW motor for 4 1/2 years now and it is still working fine.
by mistercrash
Feb 29 2020 5:31pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Electric Scooter Conversion - Polish WFM Osa M52
Replies: 23
Views: 1352

Re: Electric Scooter Conversion - Polish WFM Osa M52

Looking at the motors again, it looks like you have to go for a 2.75'' rim to get the highest wattage.
by mistercrash
Feb 29 2020 5:08pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Electric Scooter Conversion - Polish WFM Osa M52
Replies: 23
Views: 1352

Re: Electric Scooter Conversion - Polish WFM Osa M52

How about this controller? Check the dimensions to see if you can fit it somewhere in your scoot, it's a big controller. https://qsmotor.en.alibaba.com/product/60255817584-801784612/APT_Programmable_Sine_Wave_FOC_AE96600_72V_96V_8kW_PM_Motor_Driver_Controller.html?spm=a2700.icbuShop.41413.11.746a776...
by mistercrash
Jan 28 2020 1:26pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Planning a Vespa conversion
Replies: 30
Views: 2183

Re: Planning a Vespa conversion

vdubjim wrote:
Jan 26 2020 1:35pm
mistercrash wrote:
Jan 26 2020 1:32pm
I had the same problem trying to find a suitable BMS for my scooter a few years ago. So I made this, not a BMS but more of a LVA/HVA. Low voltage and high voltage alarm using 4 Cellogs 8M. It's been working for me.
That looks cool!
What cells?
10 Leaf modules
by mistercrash
Jan 26 2020 1:32pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Planning a Vespa conversion
Replies: 30
Views: 2183

Re: Planning a Vespa conversion

I had the same problem trying to find a suitable BMS for my scooter a few years ago. So I made this, not a BMS but more of a LVA/HVA. Low voltage and high voltage alarm using 4 Cellogs 8M. It's been working for me.
by mistercrash
Jan 20 2020 12:01am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Planning a Vespa conversion
Replies: 30
Views: 2183

Re: Planning a Vespa conversion

I have not shopped for these modules in a long while but this is by far the lowest price I have seen.
by mistercrash
Jan 19 2020 1:19pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Planning a Vespa conversion
Replies: 30
Views: 2183

Re: Planning a Vespa conversion

Battery, Nissan Leaf modules?
by mistercrash
Jan 18 2020 8:26pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Lambretta University Project
Replies: 8
Views: 1469

Re: Lambretta University Project

There is a good reason why scooter conversions are often done with a hub motor. It is easy, and no sprockets and chain to deal with. Much quieter and leaves a lot more room in the belly of the scoot for a larger battery that will give more power and range. You can get peaks of 40+ hp with a 5kw 12''...
by mistercrash
Jan 18 2020 8:22pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Planning a Vespa conversion
Replies: 30
Views: 2183

Re: Planning a Vespa conversion

Contact QS Motors and explain your requirements and they will recommend a good match between motor and controller for your project. I had a good experience with them when I did my scoot.
by mistercrash
Nov 19 2019 10:37pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Kelly KLS-H Controller Wiring Query
Replies: 12
Views: 1346

Re: Kelly KLS-H Controller Wiring Query

This is what I did to my scooter with my Kelly controller and QS motor. No issues since I did this and use the scooter very often.

https://oi177.photobucket.com/albums/w2 ... g~original
by mistercrash
Jul 25 2019 4:30am
Forum: E-Scooter and Motorcycle General Discussion
Topic: My scooter wont run during or after rain
Replies: 13
Views: 825

Re: My scooter wont run during or after rain

Do your brake levers have a small switch on them that cut power to the motor when you squeeze the brake levers? My scooter's brake switches would let water get inside them thus creating a short, and it would cut power to the motor as if the brakes were applied.
by mistercrash
Apr 19 2019 7:00pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Buell Fuell Flow motorcycle
Replies: 18
Views: 1690

Re: Buell Fuell Flow motorcycle

why build another electric bicycle that looks like a motorcycle or scooter? 1kw battery and a 500w motor :roll: for over 10 grand?! No thanks. the bicycle looks good but that anemic little motorcycle wannabe is super lame.
by mistercrash
Feb 22 2019 4:56pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Motorino XPn 2011
Replies: 458
Views: 86194

Re: Motorino XPn 2011

Hey! This thing is still going. Still as strong and fast as when I did the work on it. I still use it everyday to go to work.
by mistercrash
Dec 16 2018 8:01pm
Forum: Battery Technology
Topic: 18650 spot welding -how to- ULTIMATE REPOSITORY
Replies: 759
Views: 173442

Re: 18650 spot welding -how to- ULTIMATE REPOSITORY

No I didn't but I don't see why it would not work. I went for the cheaper and a bit bulkier Leaf module route. If I had some disposable income to get a lot of quality 18650 or 20700 cells, I would be clicking the ''Order now'' button in a heartbeat.
by mistercrash
Oct 21 2018 8:25pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: need help with connections: upgrading yuyang to kelly controller
Replies: 1
Views: 789

Re: need help with connections: upgrading yuyang to kelly controller

Which Kelly do you have, the link you provided is broken. I can tell you that most of the wires used for your stock controller will not be used for the Kelly.
by mistercrash
Aug 27 2018 9:57pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Rieju RS3 NKD 50 (or similar) conversion
Replies: 3
Views: 561

Re: Rieju RS3 NKD 50 (or similar) conversion

Talk to someone at QS Motors telling them in detail what you want for speed, torque and performance and they will build you the hub you need and match it to a suitable controller. Looking at the bike, if a Leaf module fits flat inside that aluminum chassis, I know how I would convert this thing. I l...
by mistercrash
Aug 26 2018 10:25pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Rieju RS3 NKD 50 (or similar) conversion
Replies: 3
Views: 561

Re: Rieju RS3 NKD 50 (or similar) conversion

QS Motors make motorcycle motors in various size rims. Like this one http://www.qs-motor.com/product/17inch-8000w-in-wheel-hub-motor-v3-type-for-electric-motorcycle/ which is a 17 inch rim like the stock rear rim on the bike you linked. I don't know about where you are, but where I live, if the bike...
by mistercrash
Aug 26 2018 10:13pm
Forum: Battery Technology
Topic: Building a battery pack with super glue?
Replies: 11
Views: 1165

Re: Building a battery pack with super glue?

right back at you. Good luck.
by mistercrash
Aug 26 2018 12:26pm
Forum: Battery Technology
Topic: Building a battery pack with super glue?
Replies: 11
Views: 1165

Re: Building a battery pack with super glue?

I made a large battery with CA glue and the wraps just tear after a short while on some of the cells, or the CA cracks and breaks apart, the only thing holding those cells was the nickle strips. I made another battery with hot glue and the wraps were not damaged but the some of the cells came apart...
by mistercrash
Aug 25 2018 8:02pm
Forum: Battery Technology
Topic: Building a battery pack with super glue?
Replies: 11
Views: 1165

Re: Building a battery pack with super glue?

I made a large battery with CA glue and the wraps just tear after a short while on some of the cells, or the CA cracks and breaks apart, the only thing holding those cells was the nickle strips. I made another battery with hot glue and the wraps were not damaged but the some of the cells came apart,...
by mistercrash
Jul 29 2018 10:59am
Forum: Battery Technology
Topic: Lets play build a battery.
Replies: 33
Views: 2279

Re: Lets play build a battery.

As long as you don't mind a thousand-cell pack, anyway. ;) i can make you a 8500 cell battery so you can slap it under a car if you feel like it. :roll: (or just buy one from tesla) If you want to ride it and not spend all your time trouble shooting, go with Leaf modules. If you don't want to ride ...
by mistercrash
Jul 27 2018 9:50pm
Forum: Battery Technology
Topic: Lets play build a battery.
Replies: 33
Views: 2279

Re: Lets play build a battery.

If you want to ride it and not spend all your time trouble shooting, go with Leaf modules. If you don't want to ride it and prefer wrenching on it continuously and spend more money and time reworking what you built over and over again, try to build a monster battery out of little can cells.
by mistercrash
Apr 25 2018 12:08pm
Forum: Battery Technology
Topic: Tesla Model 3 battery teardown!
Replies: 27
Views: 2771

Re: Tesla Model 3 battery teardown!

Seems to me that every EV on the market is expensive and will work well depending on where you use them. Can't be too hot or too cold outside. I still drive an ICE car because I live in Canada and a full tank of gas will give me the same amount of range whether it's really hot or really cold or any...
by mistercrash
Apr 25 2018 9:36am
Forum: Battery Technology
Topic: Tesla Model 3 battery teardown!
Replies: 27
Views: 2771

Re: Tesla Model 3 battery teardown!

Yeah we all know batteries are affected by cold but I still don't get this either, how can loosing close to half your range because you drive in cold climates be acceptable to so many people? Because - 1) When you need 100 miles of range max, losing half of a 300 mile range is no big deal 2) When t...