Search found 1169 matches

by E-HP
Mar 30 2020 9:39pm
Forum: E-Bike General Discussion
Topic: Building my first bike - A few questions
Replies: 7
Views: 42

Re: Building my first bike - A few questions

Hi ES :) I feel like I have found a decent combo of bike and conversion kit, but I am not sure if they really fit. Apart from the wheel size on the kit and the bike, what am I looking for? Any small things, or large for that matter, that might be easy for a beginner to miss? The 142mm hub spacing i...
by E-HP
Mar 30 2020 7:57pm
Forum: E-Bike Technical
Topic: PAS mode working oddly-geared hub motor - CA3.1
Replies: 5
Views: 106

Re: PAS mode working oddly-geared hub motor - CA3.1

I can't seem to connect to the bike using the setup utility. Here are the readings from the PAS setup displays: Setup PAS Device - 4.96V - Basic - Note: The PtDt display doesn't change when I pedal the bike. PASD-> Sensor Type - Basic PAS PASD-> Poles - 12 Poles PASD-> Signal Type - 1 wire PASD-> D...
by E-HP
Mar 23 2020 10:46am
Forum: E-Bike Non-hub Motor Drives
Topic: Power issue and crackling noise
Replies: 16
Views: 354

Re: Power issue and crackling noise

Thanks for the advice. Maybe next time reduce the levels of sarcasm. Not all people find that acceptable. Helping minus the sarcasm would be great and be a much more positive step towards people's communication with you. I have found better help on this subject from other forums with more professio...
by E-HP
Mar 23 2020 10:00am
Forum: E-Bike Non-hub Motor Drives
Topic: Very short range from battery, trying to diagnose
Replies: 19
Views: 740

Re: Very short range from battery, trying to diagnose

Look at the evidence again. I left the battery charging for 24 hrs. It must be fully balanced. The indicator on the side says it is well charged. My multimeter says it is 55v. That is exactly what I would expect from a fuctioning battery. However, the display says the battery is nearly flat. It cut...
by E-HP
Mar 18 2020 12:03am
Forum: E-Bike Technical
Topic: Need advice
Replies: 13
Views: 188

Re: Need advice

How much range do you usually get Sent from my moto z4 using Tapatalk Here's the load graph from Grin's ebike motor simulator for a bike with rider in an upright position on flat ground. Depending on the efficiency of your components (motor, controller), you can add 17-20% to the watts on the right...
by E-HP
Mar 17 2020 11:15pm
Forum: E-Bike Technical
Topic: Need advice
Replies: 13
Views: 188

Re: Need advice

zach5092010 wrote:
Mar 17 2020 11:12pm
I'm just gonna go with a 72v 20ah cause my awd motors are 60v/72v

Sent from my moto z4 using Tapatalk
Probably a good direction. The mixed bag of voltages and capacities from your posts above won't work.
by E-HP
Mar 17 2020 10:58pm
Forum: E-Bike Technical
Topic: Will higher amp controller help?
Replies: 31
Views: 903

Re: Will higher amp controller help?

I have a home built ebike with rear 1000W hubmotor kit. The controller is an older, 48v no name ebay purchase with no current specs. Previous;y I powered it with two 12Ah 6s quadcopter batteries in series, about 44v nominal. Recently, I built a 15Ah 52v battery using (42) 26650 cells in 14s 3p arra...
by E-HP
Mar 17 2020 10:46pm
Forum: E-Bike Technical
Topic: Need advice
Replies: 13
Views: 188

Re: Need advice

Typically our ebikes are powered by battery packs, not individual batteries. The typical pack consists of several 18650 cells, arranged in series to obtain the desired voltage (e.g. 13 cells in series, or 13S, would provide a nominal 48 volts). These series groups are then connected in parallel in t...
by E-HP
Mar 12 2020 9:28pm
Forum: E-Bike General Discussion
Topic: Battery Disconnect method.
Replies: 57
Views: 1783

Re: Battery Disconnect method.

DogDipstick wrote:
Mar 12 2020 9:20pm
Lol Ive used those to break DC. lol. Works.
Yup, as long as I don't open it under load, no concerns about frying the contacts. If it ever fails, it's only $6 to replace.
by E-HP
Mar 12 2020 9:17pm
Forum: E-Bike General Discussion
Topic: Battery Disconnect method.
Replies: 57
Views: 1783

Re: Battery Disconnect method.

I use a 40A AC single pole breaker as an on/off switch for my battery. Since it's AC, it won't actuate based on current, when used in a DC circuit, so I'm only using it because of the contact ratings. Still working fine after a thousand plus actuations. $6 Home Depot.
by E-HP
Mar 11 2020 1:59pm
Forum: E-Bike Technical
Topic: Can I increase speed on Jetson Bolt over 18 MPH?
Replies: 10
Views: 434

Re: Can I increase speed on Jetson Bolt over 18 MPH?

"You don’t want to go faster on that bike. Use something with full-sized wheels" "...that bike isn't a good platform for speed" They're not wrong. Enjoy your 18mph for now, stick around here and do lots and lots of reading, then see about building a proper ebike in the future. I know waiting sucks,...
by E-HP
Mar 11 2020 9:50am
Forum: E-Bike Build Threads / Photos & Video
Topic: Powerful e-bike commuter/runaround for hilly area
Replies: 6
Views: 541

Re: Powerful e-bike commuter/runaround for hilly area

Are you taking the bike on the train with you, or do you have a secure place to park it at the train station?
by E-HP
Mar 10 2020 8:14pm
Forum: E-Bike Technical
Topic: Elegance 36 Throttle / Controller Help Please
Replies: 7
Views: 182

Re: Elegance 36 Throttle / Controller Help Please

The blue and yellow of the old throttle looks to be a plain switch, likely used to turn the controller on and off. The TAG/PAS switch from the new throttle should be able to provide this function, if it is also an on/off (rather than a momentary push button). The brown and white of the old throttle ...
by E-HP
Mar 10 2020 4:00pm
Forum: E-Bike Technical
Topic: Elegance 36 Throttle / Controller Help Please
Replies: 7
Views: 182

Re: Elegance 36 Throttle / Controller Help Please

thebikestore wrote:
Mar 10 2020 2:49pm
Thank you for the quick reply, I just noticed the throttle supplied says 24v on the side. That seems to me to be an issue, does the throttle have a certain voltage that needs to match the controller and the motor?
Can you post a picture of the old throttle?
by E-HP
Mar 10 2020 2:28pm
Forum: E-Bike Technical
Topic: Elegance 36 Throttle / Controller Help Please
Replies: 7
Views: 182

Re: Elegance 36 Throttle / Controller Help Please

The old throttle has; 1 brown/white male 1 blue/yellow male 1 red/black/green female The new throttle has; 1 Battery Gauge grey/green female 1 PAS/TAS Button yellow/brown male 1 HAL sensor red/blue/white The red white and blue of the new throttle is equivalent to the red black green of the old thro...
by E-HP
Mar 09 2020 3:05pm
Forum: E-Bike General Discussion
Topic: DIY vs. Commercial: How/ Why(not)?
Replies: 21
Views: 780

Re: DIY vs. Commercial: How/ Why(not)?

I will be in formal business attire, and IMO suspension forks and/or motocross styling just doesn't mesh with FBA . Not sure what you mean here. Are you concerned about your appearance while riding? Realize that the faster you go above regular bicycle speeds, the dirtier you get, so expect your dry...
by E-HP
Mar 03 2020 10:04pm
Forum: E-Bike Technical
Topic: HELP PLS - NEW CONTROLLER probs
Replies: 2
Views: 204

Re: HELP PLS - NEW CONTROLLER probs

Hi all, I have a little e-trike and just replaced the burnt controller with an OEM new one. I connected everything but the moment I turn on the key it starts running continiously and no response from the throttle whatsoever. Is a faulty speed throttle or something my noobiness neglect? Thank you al...
by E-HP
Mar 02 2020 7:52pm
Forum: E-Bike Technical
Topic: 48v Battery Not Charging with New 54.6V Charger
Replies: 6
Views: 410

Re: 48v Battery Not Charging with New 54.6V Charger

neeks wrote:
Mar 02 2020 5:33pm
Haven't tested the battery with a multimeter but the specs are posted here https://www.leoncycle.com.au/~140
What is the voltage of your battery pack, measured with your multimeter?
by E-HP
Mar 02 2020 5:16pm
Forum: E-Bike Technical
Topic: 48v Battery Not Charging with New 54.6V Charger
Replies: 6
Views: 410

Re: 48v Battery Not Charging with New 54.6V Charger

neeks wrote:
Mar 02 2020 2:02pm
When I test the charger with a multimeter is shows 54.6V. I tested the two fuses it comes with as well.

Does anyone have any idea why the charger won't start charging with my battery?
What is the voltage of your battery pack, measured with your multimeter?
by E-HP
Feb 27 2020 1:58pm
Forum: E-Bike Technical
Topic: E bike shivers before the ride
Replies: 11
Views: 576

Re: E bike shivers before the ride

I'd check the throttle cable connections first. If everything looks good, then open the throttle and look for bad connection. Alternatively, just replace the throttle.
by E-HP
Feb 27 2020 12:10pm
Forum: E-Bike Technical
Topic: KT 1500W controller + Motor halt when accelerating
Replies: 4
Views: 291

Re: KT 1500W controller + Motor halt when accelerating

It is not related with the power draw nor the pas/throttle mode. How did you arrive at this conclusion? I know for my KT controller, it effectively works like it’s in speed throttle rather than torque throttle mode, when in the throttle voltage range, and then will cut power and coast when fully re...
by E-HP
Feb 27 2020 11:57am
Forum: E-Bike Technical
Topic: Using Ligos in parallel
Replies: 10
Views: 481

Re: Using Ligos in parallel

If they are the Grin LIGOs, then the BMS is supposed to be smart enough to shutdown the lower voltage battery if it detect too high of a charge current. If it shuts down, you’d need to charge that one until the voltages are closer. Or you could just charge the lower battery to within ~0.1V before pa...
by E-HP
Feb 26 2020 9:53pm
Forum: E-Bike General Discussion
Topic: Great ebike frame the doesn't look like a dirtbike?
Replies: 17
Views: 892

Re: Great ebike frame the doesn't look like a dirtbike?

Early model Trek Fuel, when they had straight tubes; years when they just started providing a disc brake option.
The triangle is huge for a full suspension frame.


Sent from my iPhone using Tapatalk
by E-HP
Feb 26 2020 3:56am
Forum: E-Bike Build Threads / Photos & Video
Topic: donor bike selection
Replies: 6
Views: 502

Re: donor bike selection

I can't picture spending the higher cost of a mid drive and installing it on a bike with no suspension. So for close to the same cost, get two used bikes and build one hub bike, and a BBS02 powered full suspension mid drive. Use the same battery for both.
by E-HP
Feb 26 2020 3:43am
Forum: E-Bike General Discussion
Topic: MAC motor worth it?
Replies: 16
Views: 1146

Re: MAC motor worth it?

Thanks for the reply. I should clarify I don't need or expect to go 30mph constantly, I'm happy to ride efficiently most of the time. And my commute is actually 15 miles round trip I rounded up to 20 miles for some cushion. I think the 8T MAC and 20ah EM3ev battery are as much performance as I'm wi...