Search found 679 matches

by Powervelocity.com
Oct 06, 2017 4:05 pm
Forum: E-Bike Reviews & Testing
Topic: PowerVelocity controller review
Replies: 272
Views: 12839

Re: PowerVelocity controller review

I only had 3-4 customers running it. Might be popular before but, at the face value, internal reduction maybe adding unnecessary complexities. Motors can be wound for particular speed and/or torque belt or chain can be the only reduction necessary. Adding reductions on top of reduction seems like as...
by Powervelocity.com
Oct 06, 2017 3:21 pm
Forum: E-Bike Reviews & Testing
Topic: PowerVelocity controller review
Replies: 272
Views: 12839

Re: PowerVelocity controller review

Cyclone is the only motor I am aware of that has problems. Every other motor I've tested or heard from customers about is working fine. Even Crystalyte Crown that is not supported by expensive controller brands, works just fine with PV controllers. I suspect that issues with Cyclone is around sensor...
by Powervelocity.com
Oct 06, 2017 11:32 am
Forum: Items for Sale - New
Topic: Smartphone EV trip dashboard - Android/iOS - $99
Replies: 83
Views: 5620

Re: Smartphone EV trip dashboard - Android/iOS - $99

iOS version of the app is now available for download in the App Store.
https://itunes.apple.com/us/app/powerve ... 01461?mt=8

It already comes with temperature monitoring. The Android version will be updated in Google Play to include temperature gauges in a bit.
by Powervelocity.com
Oct 03, 2017 3:17 pm
Forum: E-Bike Reviews & Testing
Topic: PowerVelocity controller review
Replies: 272
Views: 12839

Re: PowerVelocity controller review

USPS priority shipping (within the US) is usually OK. They are more or less gentle with packages. I rarely have issues in US. But this one went to Europe and I suspect that's where it took most of the beating. It's in a strong aluminum box, so it has to be hit really hard to damage it but who knows ...
by Powervelocity.com
Oct 03, 2017 3:07 pm
Forum: Items for Sale - New
Topic: Smartphone EV trip dashboard - Android/iOS - $99
Replies: 83
Views: 5620

Re: Smartphone EV trip dashboard - Android/iOS - $99

Yeah, of course. What's the point of monitoring temperature, if you can't see it? ;) Both temp gauges are on the dash. The secondary temperature input is wired outside, so you can connect any termistor to it including motor, battery or ambient temperature probe. Overheat protection is being added sh...
by Powervelocity.com
Oct 03, 2017 1:18 pm
Forum: Items for Sale - New
Topic: Smartphone EV trip dashboard - Android/iOS - $99
Replies: 83
Views: 5620

Re: Smartphone EV trip dashboard - Android/iOS - $99

Temperature monitoring is now standard on all controllers shipped with dashboard functionality. Overheat protection is being added shortly via the software update.
by Powervelocity.com
Oct 03, 2017 11:40 am
Forum: E-Bike Reviews & Testing
Topic: PowerVelocity controller review
Replies: 272
Views: 12839

Re: PowerVelocity controller review

We leave just a tad of work for you guys to do so you can quench your DYI/hacking thirst.
Getting everything perfect where nothing is left to fiddle with would be disappointing for me and for ElectricGod, at least, for sure.
by Powervelocity.com
Oct 03, 2017 11:29 am
Forum: Items for Sale - New
Topic: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179-199
Replies: 803
Views: 68209

Re: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179

On a 6 month vacation.. I wish... :D
PM sent.
rojitor wrote:Good morning. Are you guys away? You didn't reply my last mails. I am patient but not so much. I'd appreciate an answer.
Thank you
by Powervelocity.com
Sep 30, 2017 12:22 pm
Forum: E-Bike Reviews & Testing
Topic: PowerVelocity controller review
Replies: 272
Views: 12839

Re: PowerVelocity controller review

The dual mode versions of 6F, 12F, 18F controllers became available a couple months ago, so your controller purchased in 2016 does not have that. I am still offering both versions - single and dual mode - and there is a slight difference in pricing. This is a single mode/sinusoidal version: http://p...
by Powervelocity.com
Sep 30, 2017 11:02 am
Forum: E-Bike Reviews & Testing
Topic: PowerVelocity controller review
Replies: 272
Views: 12839

Re: PowerVelocity controller review

The difference between sinusoidal and trapezoidal modulation is well pronounced with hub motors on hard tail frames under moderate to hard acceleration. With trapezoidal you get lots of vibrations transferred to the frame that makes the whole thing sound almost like a gas powered engine. Kind of coo...
by Powervelocity.com
Sep 22, 2017 11:51 pm
Forum: Items for Sale - New
Topic: 24F Silent Controller 20kw 100-150v iOS/Android- $299>
Replies: 137
Views: 12618

Re: 24F Silent Controller 15kw 150v iPhone/Android/GPS - $29

A video manual on how to program controllers from a smartphone with brief descriptions of the settings is posted here:

by Powervelocity.com
Sep 22, 2017 11:47 pm
Forum: Items for Sale - New
Topic: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179-199
Replies: 803
Views: 68209

Re: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179

A video manual on how to program controllers from a smartphone with brief descriptions of the settings is posted here:

by Powervelocity.com
Sep 22, 2017 11:44 pm
Forum: Items for Sale - New
Topic: Smartphone EV trip dashboard - Android/iOS - $99
Replies: 83
Views: 5620

Re: Smartphone EV trip dashboard - Android/iOS - $99

A quick overview of the Programmer portion of the app.
https://youtu.be/slXtrZbg3QE

More to come.
by Powervelocity.com
Sep 21, 2017 12:12 pm
Forum: E-Bike Reviews & Testing
Topic: PowerVelocity controller review
Replies: 272
Views: 12839

Re: PowerVelocity controller review

Gotta subscribe to this. On the subject of heat monitoring, it's standard in the latest iteration of the telemetry module. Two temp inputs: one is wired to a thermistor attached directly to one of the mosfets and the other one is wired outside to be used for motor temp probe, battery or just ambient...
by Powervelocity.com
Sep 19, 2017 2:25 pm
Forum: General Discussion
Topic: Ebikers EVen more deadlier... (?)
Replies: 5
Views: 431

Re: Ebikers EVen more deadlier... (?)

It's not about bikes or ebikes or any particular technology that kills. A hammer or a table fork can become deadly tools in wrong hands. It's about responsibility of the users of those tools and technology.
by Powervelocity.com
Sep 15, 2017 7:56 pm
Forum: Items for Sale - New
Topic: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179-199
Replies: 803
Views: 68209

Re: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179

EBS- is you regular ebrake connection. You would connect to brake lever switches together with the ground.
EBS+ would be used instead if you also wire your brake signal light.
999zip999 wrote:Got the 15fet what is ebs- ( black and blue/whie strip) and one wire ebs + ( purple) for ?
by Powervelocity.com
Sep 14, 2017 12:19 pm
Forum: Items for Sale - New
Topic: Compact 26s 109v/35Ah/3.3kWh/10kw packs for power&range
Replies: 27
Views: 1934

Re: Compact 26s 109v/35Ah/3.3kWh/10kw packs for power&range

With this BMS, you have the ability to set up pretty much any voltage level when balancing should kick in, I don't see any issues stemming from the situation you are describing. Set balancing at 4.1v and only during charging and you are good. No excessive (or any) balancing when you run the vehicle ...
by Powervelocity.com
Sep 14, 2017 10:29 am
Forum: Items for Sale - New
Topic: 6F 2kW SW Controller 100V dual sensored/less iOS/Android $99
Replies: 25
Views: 1891

Re: 6F 2kW SW Controller 100V dual sensored/less iOS/Android

We don't discriminate our brothers and sisters from the old world.
miuan wrote:Hi! Are these available in Europe?
by Powervelocity.com
Sep 14, 2017 10:19 am
Forum: Items for Sale - New
Topic: 6F 2kW SW Controller 100V dual sensored/less iOS/Android $99
Replies: 25
Views: 1891

Re: 6F 2kW SW Controller 100V dual sensored/less iOS/Android

Sure.
liveforphysics wrote:CSD19506KCS.

Possible to build using that FET to make a controller for 16s max?

Or the 100v version.

http://www.ti.com/product/csd19536kcs
by Powervelocity.com
Sep 13, 2017 7:22 pm
Forum: Items for Sale - New
Topic: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179-199
Replies: 803
Views: 68209

Re: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179

If the smallest is the overriding requirement, check out this 6F little guy: https://endless-sphere.com/forums/viewtopic.php?f=31&t=89673 You can see the dimensions there. It also comes with dual sensored/sensorless mode. Depending on what you use the CA for, it may or may not be redundant. 50,000 b...
by Powervelocity.com
Sep 13, 2017 1:59 pm
Forum: Items for Sale - New
Topic: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179-199
Replies: 803
Views: 68209

Re: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179

Your prayers have been answered. ;) On its way and should be there in a couple of days.
999zip999 wrote:Okay pulled the trigger on the 15 fet with Bluetooth as I love my 18fet. Money sent must now wait like a puppy at the front door. Thanks great service and thinking forwardestly
by Powervelocity.com
Sep 13, 2017 1:58 pm
Forum: Items for Sale - New
Topic: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179-199
Replies: 803
Views: 68209

Re: 15/18F Silent Controller 36-150V BT-iOS-Android/GPS-$179

50,000 based on the specs but maybe more are achievable. Need a high KV motor to test.
Ecyclist wrote:What is maximum ERPM for this controller?
by Powervelocity.com
Sep 13, 2017 9:47 am
Forum: Items for Sale - New
Topic: Compact 26s 109v/35Ah/3.3kWh/10kw packs for power&range
Replies: 27
Views: 1934

Re: Compact 26s 109v/35Ah/3.3kWh/10kw packs for power&range

200-300A can be done in exactly the same package. I just didn't think about using 20 or 30A cells. That would have to be lipos and their volu/gravimetric characteristics are inferior compared to cylinder cells, hence, less capacity/range for the same size and weight. This is not to mentioned increas...
by Powervelocity.com
Sep 12, 2017 9:34 pm
Forum: Items for Sale - New
Topic: 24F Silent Controller 20kw 100-150v iOS/Android- $299>
Replies: 137
Views: 12618

Re: 24F Silent Controller 15kw 150v iPhone/Android/GPS - $29

I wonder how many people are actually using var. regen on controllers that have it out of the box. It seems to be a good concept in theory but I rode both variable and non variable and ended up preferring good tuned non-variable one. I can't explain exactly why. Would love to hear from those who is ...
by Powervelocity.com
Sep 12, 2017 2:14 pm
Forum: Items for Sale - New
Topic: Compact 26s 109v/35Ah/3.3kWh/10kw packs for power&range
Replies: 27
Views: 1934

Re: Compact 26s 109v/35Ah/3.3kWh/10kw packs for power&range

Yep, technically, can do that. Even 30A cells to get to 300A total discharge. I just thought range mattered.
999zip999 wrote:How about using the Samsung 25r 20amp cell. Compromise weigh for power lost ah, but power ?