Search found 2053 matches

by Rassy
Apr 23 2021 10:45am
Forum: EBike Technical
Topic: 20KW 2WD having misfires (but can do a double burnout)
Replies: 194
Views: 27990

Re: 20KW 2WD having misfires (but can do a double burnout)

I just saw your question in this thread today warren, but the answer is that I moved away from the house on the steep hill seven years ago and have not used any multiple motor systems since then. I was told repeatedly by "experts" that the full throttle parallel method that I used could re...
by Rassy
Apr 23 2021 10:33am
Forum: EBike Non-hub Motor Drives
Topic: BBSHD Firmware Upgrade
Replies: 8
Views: 3519

Re: BBSHD Firmware Upgrade

This may be slightly off topic for this thread, but the BBS02 has also suffered from the throttle/PAS dominance change that Bafang made in 2017. This thread both explains the problem and gives some non-firmware solutions:

viewtopic.php?f=28&t=111469
by Rassy
Apr 22 2021 10:30pm
Forum: EBike Non-hub Motor Drives
Topic: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue
Replies: 168
Views: 43480

Re: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue

Excellent question fechter, I decided against making any modification to the throttle and instead I'm using a latching button switch next to the thumb on the opposite side of the handlebar from the throttle. Since this thread has become quite long and mostly about the electronic fix to the problem I...
by Rassy
Apr 22 2021 10:19pm
Forum: EBike Non-hub Motor Drives
Topic: Bafang BBS02 Throttle/PAS Simple Fix
Replies: 0
Views: 420

Bafang BBS02 Throttle/PAS Simple Fix

As most BBS02 and BBSHD enthusiasts know, Bafang introduced a change in 2017 that changed dominance from the throttle to PAS which resulted in poor throttle response when you were also pedaling, even in PAS level 0. I took part in an experiment with guidance from Fechter to make an electronic change...
by Rassy
Apr 20 2021 7:27pm
Forum: EBike Non-hub Motor Drives
Topic: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue
Replies: 168
Views: 43480

Re: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue

My fix, described in the first post of this thread, died after 3 years of use. I have updated the first post with an edit describing a very simple alternate fix for this problem that does not require any electronic parts or digging into the controller potting. Of course it will still void your warra...
by Rassy
Mar 01 2021 8:38pm
Forum: EBike Non-hub Motor Drives
Topic: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue
Replies: 168
Views: 43480

Re: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue

Well, after 3 years of regular use the controller dated 9/2016 that I "fixed" started cutting out on a ride today. The display stayed on so I knew power was getting to the controller, but the assist would stop and the throttle would not work. Most times after losing three or four MPH both ...
by Rassy
Oct 21 2020 11:45pm
Forum: EBike Build Threads
Topic: Mobility Trike Build With Coaster Brake
Replies: 11
Views: 676

Re: Mobility Trike Build With Coaster Brake

How is it that she can't shift? Maybe a different shifter needed? Yes, there are some out there that might work better for her, but running in low gear gives her more speed than she requires, depending on the PAS level she chooses. She has a hard time controlling her left hand and fingers and has t...
by Rassy
Oct 19 2020 11:21am
Forum: EBike Build Threads
Topic: Mobility Trike Build With Coaster Brake
Replies: 11
Views: 676

Re: Mobility Trike Build With Coaster Brake

I will try to answer a few comments and questions that have been posted above: I ordered the Coaster Brake Hub with a 3 speed IGH because I did not know exactly how she would use it in practice. Turns out she can not shift on the fly and just uses low gear all the time. I am still glad that I put in...
by Rassy
Oct 19 2020 8:59am
Forum: EBike Build Threads
Topic: Mobility Trike Build With Coaster Brake
Replies: 11
Views: 676

Re: Mobility Trike Build With Coaster Brake

PXL_20200916_175123752.jpg
Completed Trike
PXL_20200916_175123752.jpg (47.27 KiB) Viewed 375 times
IMG_20200910_112158.jpg
Coaster Brake Installed on Jack Shaft
IMG_20200910_112158.jpg (38.29 KiB) Viewed 370 times
IMG_20200911_173813.jpg
Modification where rear wheels attach to Trike Frame
IMG_20200911_173813.jpg (56.9 KiB) Viewed 368 times

To show detail the previous two pictures were taken when the trike was still upside down during assembly.
by Rassy
Oct 17 2020 10:49am
Forum: EBike Build Threads
Topic: Mobility Trike Build With Coaster Brake
Replies: 11
Views: 676

Re: Mobility Trike Build With Coaster Brake

Sorry about not keeping this thread up to date. I have some pictures on my camera and have never uploaded them (or any others) to my computer yet but should be able to do that and will do so. Anyway, the project was successful, the trike was delivered to her several weeks ago and she loves it. Our m...
by Rassy
Sep 05 2020 2:34pm
Forum: EBike Build Threads
Topic: Mobility Trike Build With Coaster Brake
Replies: 11
Views: 676

Mobility Trike Build With Coaster Brake

At 80, I had decided not to do any more electric assist projects, but a little background will help explain why I am doing this one: On Wednesday, August 28, a friend in Eugene that I had converted his tadpole pedal trike to electric assist using a BBS02, introduced me to a friend of his that wanted...
by Rassy
Aug 21 2020 9:36pm
Forum: Items for Sale - New
Topic: NuVinci auto hub kit
Replies: 9
Views: 1584

Re: NuVinci auto hub kit

No, been gone for several years now.

EDIT: Oops, that probably wasn't addressed to me, I answered a PM first and just went here without reading the entire thread first.
by Rassy
Aug 21 2020 7:03pm
Forum: EBike General Discussion
Topic: new eZip motor
Replies: 6964
Views: 547474

Re: new eZip motor

Balmorhea said: with Kool Stop salmon pads I agree, these are the best brake pads I have ever used, and they come in several different styles, even for disc brakes. Also, LC, I understand you want to adapt a disc brake because you might change the wheel size, but with all the different bikes and hub...
by Rassy
Jul 25 2020 10:36am
Forum: EBike General Discussion
Topic: new eZip motor
Replies: 6964
Views: 547474

Re: new eZip motor

LC, what Sunder said is correct. If you purchase a 500 Watt kit (motor, controller, throttle, etc.) the 500 Watt rating means that is the continuous Wattage that the system can use without overheating, etc. A good example is my current 48V 750 Watt Bafang BBS02. The controller can be set to any maxi...
by Rassy
Jul 18 2020 10:34pm
Forum: EBike General Discussion
Topic: Bafang BBSHD and Nuvinci N380 cvt combo-anyone else using this?
Replies: 6
Views: 703

Re: Bafang BBSHD and Nuvinci N380 cvt combo-anyone else using this?

My comment about the N171 is efficiency. I put together two TerraTrike tadpoles, a Rover and a Path, both with an auto shift N171 and a brushless hub motor mounted as a Mid-drive chain puller. The auto shift was set up to keep the cadence at the pedals between 60 and 70 RPM. These trikes worked out ...
by Rassy
Jul 13 2020 10:01pm
Forum: EBike Technical
Topic: Fuse selection for custom eBike
Replies: 10
Views: 305

Re: Fuse selection for custom eBike

Yes, for some reason the link goes to the previous page then the one I copied the link from. Tried again and got same result. Just click on the 30 amp circuit breaker on the page and it will take you to the detail page. edit: Oops, I see my problem. Will fix the link above. edit: Link fixed. Now poi...
by Rassy
Jul 13 2020 9:48pm
Forum: EBike Technical
Topic: Fuse selection for custom eBike
Replies: 10
Views: 305

Re: Fuse selection for custom eBike

I personally like dc circuit breakers appropriately rated for your needs, namely 30 amps. Here is an example of one suitable up to 30 amps: https://www.ebay.com/i/252424298342?rt=nc&_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D2%26asc%3D20160908110712%26meid%3Dd05210ffa1824658b68953e46...
by Rassy
Jun 25 2020 11:24pm
Forum: EBike General Discussion
Topic: new eZip motor
Replies: 6964
Views: 547474

Re: new eZip motor

Good price on the breaker, and with free shipping. Should be good for the job based on what the seller wrote. In the first diagram the positive doesn't go to the meter. Probably just a drawing error? Otherwise all three diagrams are identical going from the battery to the controller. Depending on th...
by Rassy
Jun 25 2020 4:49pm
Forum: EBike General Discussion
Topic: new eZip motor
Replies: 6964
Views: 547474

Re: new eZip motor

Here is a link to another site that lists their breakers by amperage rating:

https://www.electricscooterparts.com/ci ... akers.html
by Rassy
Jun 25 2020 4:44pm
Forum: EBike General Discussion
Topic: new eZip motor
Replies: 6964
Views: 547474

Re: new eZip motor

Ok LC, I have edited my previous posts, mostly related to your diagram that labeled the two switches as kill switch 1 and kill switch 2. I think it reads better now and will be less confusing. One thing though, in my experience, even if a controller provides for an on/off power switch the capacitor ...
by Rassy
Jun 25 2020 3:55pm
Forum: EBike General Discussion
Topic: new eZip motor
Replies: 6964
Views: 547474

Re: new eZip motor

I'm sorry LC, but I missed something in your diagram and did not notice that your power switch is not in line between the battery and the controller. I will have to modify my previous response, but have to look at it a bit first. Edit, I see there was a previous diagram that did have two switches be...
by Rassy
Jun 25 2020 3:48pm
Forum: EBike General Discussion
Topic: new eZip motor
Replies: 6964
Views: 547474

Re: new eZip motor

I do normally leave my meter running for my entire ride even though I sometimes turn off the power switch which makes the trike inoperative and also turns off some lights that come on automatically when the power switch is turned on.
by Rassy
Jun 25 2020 3:02pm
Forum: EBike General Discussion
Topic: new eZip motor
Replies: 6964
Views: 547474

Re: new eZip motor

To read my comment correctly, I always think of all current flowing from the battery, at least in the case of the positive current. So the word ahead of the meter would mean between the battery and the meter. I do use the DC breaker in place of the fuse since they have the same purpose. Think about ...
by Rassy
Jun 24 2020 8:22pm
Forum: EBike General Discussion
Topic: new eZip motor
Replies: 6964
Views: 547474

Re: new eZip motor

LC, your last diagram is very close to what I have used for years with one small variation.. I have always used the original Watts Up meter, which was expensive and is no longer available, but their instruction sheet always required you to power up the meter before powering up the controller and whe...
by Rassy
Jun 06 2020 9:50pm
Forum: Battery Technology
Topic: Noob to EVs looking for BMS recomendations LiFePO4 12S
Replies: 7
Views: 356

Re: Noob to EVs looking for BMS recomendations LiFePO4 12S

Charge at too high a rate at too cold a temperature and you've instantly murdered the pack, rendered it to scrap, unrecoverable. Thanks John. Makes sense, if I have seen specifications for low temperature/charging limits I probably ignored it since weather here is not too extreme. But that does bri...