Search found 667 matches

by dustNbone
Apr 21 2019 5:26pm
Forum: E-Bike Technical
Topic: Issues with BBS02
Replies: 19
Views: 395

Re: Issues with BBS02

There are configuration options in the BBSxx controller relating to how the PAS engages, I don't use PAS (or the stock controller for that matter) so I'm not super familiar with them but I'd check out the programming BBSxx thread on here and see if any of them relate to your problem.
by dustNbone
Apr 18 2019 10:16am
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang i thin I hate you... ( HALP ME!)
Replies: 18
Views: 827

Re: Bafang i thin I hate you... ( HALP ME!)

I just installed the original (1974) Suntour square tapers from my bike. They seem to have the same dimensions as the Bafang ones, leading me to believe they're nothing special.
by dustNbone
Apr 11 2019 10:37am
Forum: Electric Watercraft
Topic: 25.2v battery running a 12v motor w/ pwm controller
Replies: 9
Views: 250

Re: 25.2v battery running a 12v motor w/ pwm controller

Water is very good at transmitting sound, so your audio based tachometer should work fine just by putting the microphone against the outside of the container you're using.
by dustNbone
Apr 11 2019 10:32am
Forum: Battery Technology
Topic: Turnigy Heavy Duty 5000mAh 6S 60C Lipo Pack w/XT-90
Replies: 5
Views: 215

Re: Turnigy Heavy Duty 5000mAh 6S 60C Lipo Pack w/XT-90

Yeah you're not pulling 300A from a 5Ah battery. Look around on this forum for applications of RC LiPo, to get a better idea of what to realistically expect from them. Far more reliable source than the manufacturer.
by dustNbone
Apr 11 2019 10:19am
Forum: E-Bike Technical
Topic: Issues with BBS02
Replies: 19
Views: 395

Re: Issues with BBS02

The BBS02 motor itself seems pretty reliable. I had a couple of controllers blow because of what I suspect was bad waterproofing, switched to an external controller mounted up under the seat a few years ago and haven't had a single minute of downtime since then. I ride around 1000km a month for refe...
by dustNbone
Apr 10 2019 10:27pm
Forum: E-Bike Technical
Topic: Issues with BBS02
Replies: 19
Views: 395

Re: Issues with BBS02

Really sounds like flaky brake/gear sensor.

I've had the BBS02 controller not respond to throttle input before, but it's always displayed an error code on the display at some point while doing so.
by dustNbone
Mar 27 2019 9:14pm
Forum: E-Bike General Discussion
Topic: Is it safe to buy a 72v 25ah battery from here?
Replies: 10
Views: 303

Re: Is it safe to buy a 72v 25ah battery from here?

You could request one, they have been known to do custom packs.
by dustNbone
Mar 27 2019 8:41pm
Forum: E-Bike Non-hub Motor Drives
Topic: Proper Middrive Shifting technique?
Replies: 11
Views: 379

Re: Proper Middrive Shifting technique?

Basically just make sure there's no tension on the driveline during the shift. You want things to be turning, but not under stress. So for a downshift, you basically only need to slow it down enough to take the tension off your freewheel(s), because after the shift there will be even more "slack" an...
by dustNbone
Mar 19 2019 10:10pm
Forum: E-Bike General Discussion
Topic: BBS02 possible seal failure?
Replies: 4
Views: 132

Re: BBS02 possible seal failure?

Yep. Mine has always done that a little, I regrease it every 5,000km or so. It doesn't seem to get any worse.
by dustNbone
Mar 19 2019 6:10pm
Forum: E-Bike General Discussion
Topic: Middrive Chain popping
Replies: 25
Views: 492

Re: Middrive Chain popping

Yeah they do wear out, but I wouldn't say it's that big a deal. I get through a year on a chain/cassette, riding about 1000km a month in a pretty hilly place. The front chainring lasted 3 years before it started to be an issue, and I've never changed the derailleur. But I don't use PAS, do use the c...
by dustNbone
Mar 19 2019 5:43pm
Forum: E-Bike General Discussion
Topic: Middrive Chain popping
Replies: 25
Views: 492

Re: Middrive Chain popping

Check for chain stretch. This is the only time I experience chain slip on my BBS02. When it's time for a new chain AND cassette. Don't bother replacing only one or the other, they will both last much longer if they wear together. Last time it was actually slipping on the motor chain ring, after abou...
by dustNbone
Mar 19 2019 5:08pm
Forum: E-Bike Technical
Topic: Overheating middrive motor?
Replies: 22
Views: 407

Re: Overheating middrive motor?

Sure, it's a good enough system to prevent immediate failure. But really you shouldn't be bumping into that in regular use, constantly running at 100C is going to shorten it's life. Make sure you're running in the correct gear, and make sure the heat dissipating parts of the motor are clean. I've pu...
by dustNbone
Mar 17 2019 5:31pm
Forum: Battery Technology
Topic: First battery built, confusion re capacity, charge in.
Replies: 5
Views: 139

Re: First battery built, confusion re capacity, charge in.

If you made a 10S4P pack of 5200mAh cells, you should have a 20.8Ah battery, which at 37V would be a bit over 750Wh.
by dustNbone
Mar 15 2019 9:19pm
Forum: Battery Technology
Topic: How measure capacity of LI-ION pack?
Replies: 8
Views: 204

Re: How measure capacity of LI-ION pack?

Just get something like this
https://www.ebay.ca/itm/DC-100A-Meter-V ... 1386546620

It will tell you everything you need to know.
by dustNbone
Feb 27 2019 6:33am
Forum: E-Bike Technical
Topic: Bafang BBSxx programming software and 32/64 bit Windows?
Replies: 3
Views: 126

Re: Bafang BBSxx programming software and 32/64 bit Windows?

Only potential hitch I see is the driver for he USB-Serial adapter.
by dustNbone
Feb 19 2019 1:04pm
Forum: E-Bike Technical
Topic: Increasing controller power to my 1000W DD hub motor
Replies: 28
Views: 860

Re: Increasing controller power to my 1000W DD hub motor

Controller inside a box is a bad idea. You will shorten it's life substantially like that.
by dustNbone
Feb 18 2019 4:34pm
Forum: E-Bike Non-hub Motor Drives
Topic: BBSHD Shutdown issue
Replies: 8
Views: 355

Re: BBSHD Shutdown issue

The battery is shutting itself down, either from having too much current pulled from it (what is the BMS rated for in Amps?) or because one of the cell groups is hitting low voltage.
by dustNbone
Feb 17 2019 8:42pm
Forum: Battery Technology
Topic: 84V pack not reaching full charge
Replies: 14
Views: 372

Re: 84V pack not reaching full charge

sailah wrote:
Feb 16 2019 8:37pm

19-20--> 4.40V

You need to discharge that 4.4V cell to 4.2. That's not safe.
by dustNbone
Feb 17 2019 8:24pm
Forum: General Discussion
Topic: Running a 230V 50hz Stove from UK
Replies: 7
Views: 447

Re: Running a 230V 50hz Stove from UK

US stove plugs are 240V, the voltage difference doesn't exist for all intents.
by dustNbone
Feb 15 2019 10:05pm
Forum: General Discussion
Topic: Running a 230V 50hz Stove from UK
Replies: 7
Views: 447

Re: Running a 230V 50hz Stove from UK

I'm not sure you have to convert anything, feed it 240/60. The difference in frequency probably won't matter if it's fairly modern and uses DC electronics for clocks, etc. Worst thing I could see happening is some motors might run at 120% speed.
by dustNbone
Feb 14 2019 7:47pm
Forum: E-Bike General Discussion
Topic: Tire size matter building a mid drive bike ?
Replies: 9
Views: 344

Re: Tire size matter building a mid drive bike ?

Not relevant at all on a mid drive. Size your chainring for the top speed you're after.
by dustNbone
Feb 08 2019 10:29pm
Forum: General Discussion
Topic: Are You getting the cold?
Replies: 21
Views: 775

Re: Are You getting the cold?

Wanna borrow my badger hat? The ladies love it. Unwearable until about -30, possibly the least practical article of clothing I own.

And yes, I believe a badger was harmed making this hat.
by dustNbone
Feb 08 2019 1:57pm
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang PAS - riding with another person or a group
Replies: 4
Views: 283

Re: Bafang PAS - riding with another person or a group

Yeah if you can disable PAS and get used to modulating the throttle, that's going to give the most control. I've found with a motor that powerful even 10 assist levels just don't offer enough control for every situation. Plus I found constantly adjusting the assist very annoying, and distracting fro...
by dustNbone
Feb 06 2019 2:25am
Forum: General Discussion
Topic: Are You getting the cold?
Replies: 21
Views: 775

Re: Are You getting the cold?

I believe 20W will make your fingertips very comfortable. Maybe too comfortable.
by dustNbone
Feb 05 2019 7:17pm
Forum: E-Bike Technical
Topic: RC Motor Issues
Replies: 5
Views: 277

Re: RC Motor Issues

Might be a good idea to disconnect supply power while connecting/disconnecting phase wires?