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by larsb
Jan 14 2015 2:42am
Forum: E-Bike Technical
Topic: Q100 stealth assist fail <solved, was LCD3 not connected>
Replies: 34
Views: 3696

Re: Q100 stealth assist fail

I had a longer bottom bracket lying around, could mount the PAS with that. Did a trial run and it turns out that d8veh is right, output when using the PAS is a LOT higher than with throttle when the display is not connected. It was too powerful for my purpose, turning the bike into a scooter basical...
by larsb
Jan 13 2015 2:53am
Forum: E-Bike Technical
Topic: Q100 stealth assist fail <solved, was LCD3 not connected>
Replies: 34
Views: 3696

Re: Q100 stealth assist fail

I read the post and I believe d8veh is saying the gear package space is the same although the ratios are different. A single stage gearing is not the same as a dual stage. Info on bmsbattery for the gears: A set of Q100 Gears. It does not fit Q100H and Q100CST. It is only suitable for Q100 motor. @d...
by larsb
Jan 12 2015 2:44pm
Forum: E-Bike Technical
Topic: Q100 stealth assist fail <solved, was LCD3 not connected>
Replies: 34
Views: 3696

Re: Q100 stealth assist fail

Checked the no load speed at 58V, it's 406 rpm. Turns into 253 rpm when scaled to 36V, pretty close to the previous 259 I measured. Doesn't prove anything if the level is limited by some percentage through the controller. Found this thread here at ES which stated the selectable levels in the LCD men...
by larsb
Jan 12 2015 11:29am
Forum: E-Bike Technical
Topic: Q100 stealth assist fail <solved, was LCD3 not connected>
Replies: 34
Views: 3696

Re: Q100 stealth assist fail

I have this battery: https://bmsbattery.com/ebike-battery/496-48v9ah-lifepo4-shrink-tube-ebike-battery-pack-battery.html?search_query=9ah&results=4 It says "1pcs 15A continuous discharge current BMS". I guess that means it's limiting to 15A? Or could it average amps somehow? That's mor...
by larsb
Jan 12 2015 10:21am
Forum: E-Bike Technical
Topic: Q100 stealth assist fail <solved, was LCD3 not connected>
Replies: 34
Views: 3696

Re: Q100 stealth assist fail

@d8veh: current is limited by the battery internal BMS. One comment i have is that it might not be current control that limits the speed as i assume that in no-load the current remains low. I charged the battery to 58V yesterday and will try the speed again, if no-load still remains at 260RPM when s...
by larsb
Jan 11 2015 12:21pm
Forum: E-Bike Technical
Topic: Q100 stealth assist fail <solved, was LCD3 not connected>
Replies: 34
Views: 3696

Re: Q100 stealth assist fail

I guess a way of being 100% certain is opening the hub and checking the reduction in the gears, i've googled the q100 to 8.2 and q100h to 12.6

Not sure if i have the energy tonight though..
But who orders stuff from China without wanting to be surprised :D
by larsb
Jan 11 2015 11:56am
Forum: E-Bike Technical
Topic: Q100 stealth assist fail <solved, was LCD3 not connected>
Replies: 34
Views: 3696

Re: Q100 stealth assist fail

That sounds like the 328 to me. .. I really think the S12S controller work the best when combined with PAS, where the current limiting feature can be used. Wouldn't the 328 have a no load of 328*53/36=483RPM at 53V? If so, something else must be off to explain my motor speed. When you say PAS, do y...
by larsb
Jan 11 2015 9:58am
Forum: E-Bike Technical
Topic: Q100 stealth assist fail <solved, was LCD3 not connected>
Replies: 34
Views: 3696

Re: Q100 stealth assist fail

So i checked the no load speed, its either 38 or 48 km/h. If i accelerate slowly then i can get the higher speed, corresponds to 382 rpm. Strange, could the BMS start limiting current due to fast acceleration and cause this behaviour? But then why does it not progress until the top speed when the wh...
by larsb
Jan 11 2015 5:03am
Forum: E-Bike Technical
Topic: Q100 stealth assist fail <solved, was LCD3 not connected>
Replies: 34
Views: 3696

Re: Q100 stealth assist fail

Hello,
No 328 label, i'll check the speed off ground and get back in a couple of hours (going for a swim with the kids :D )
by larsb
Jan 11 2015 4:36am
Forum: E-Bike Technical
Topic: Q100 stealth assist fail <solved, was LCD3 not connected>
Replies: 34
Views: 3696

Re: Q100 stealth assist fail

Hi, I found your double Q100 build thread yesterday, very interesting thread (although a bit too late for me as i already have my kit :) I must say this forum is great! I agree with your points below, although i think i might have confused you in my data, the motor is 328rpm@36V but i am running it ...
by larsb
Jan 10 2015 5:06pm
Forum: E-Bike Technical
Topic: Q100 stealth assist fail <solved, was LCD3 not connected>
Replies: 34
Views: 3696

Q100 stealth assist fail <solved, was LCD3 not connected>

Edit: < SOLVED! Problem was actually just that LCD3 was not connected to S12S controller, when connector is jumpered to get things moving the controller output is limited. S12S controller must be used with LCD3!> Hi folks, I've just completed the build of my first bike, and sadly i didn't hit my own...
by larsb
Jan 08 2015 2:28am
Forum: E-Bike Technical
Topic: LCD3 settings from factory
Replies: 2
Views: 411

Re: LCD3 settings from factory

Ok, thanks! I'll order and start building this weekend, looking forward to it!
by larsb
Jan 07 2015 5:08am
Forum: E-Bike Technical
Topic: LCD3 settings from factory
Replies: 2
Views: 411

LCD3 settings from factory

Hello, Just recently started to build an ebike - great site! Thanks everyone for contributing with info, has helped a lot already! I have the following kit from BMSbattery.com: Q100 36V motor, 328 winding 48V lifePO4 9Ah battery S12s controller. no LCD3, no speed sensor I hooked it up yesterday and ...