Search found 165 matches

by drebikes
Jan 17 2019 5:38pm
Forum: E-Bike Technical
Topic: Wiring harness ideas
Replies: 8
Views: 365

Re: Wiring harness ideas

They look pretty good, I may try them. I am running direct soldered cables for now and TBH with the freezing temperatures I'm not adding many miles to the bike I almost laced the Q128C in a new rim with some nice Sapim spokes. After this wheel is true and tested I'll look into the cabling again. It ...
by drebikes
Dec 29 2018 5:10pm
Forum: E-Bike Technical
Topic: Wiring harness ideas
Replies: 8
Views: 365

Re: Wiring harness ideas

Awesome. Two more days of thinking it over and I have decided to: *give up on the idea of upgrading the frame. Turns out I'd need to spend quite a bit to get a meaningful upgrade *buy a handlebar extension to fit the headlight and water bottle on the front. This would make space for other bits on th...
by drebikes
Dec 27 2018 4:41am
Forum: E-Bike Technical
Topic: Wiring harness ideas
Replies: 8
Views: 365

Re: Wiring harness ideas

Hi amberwolf, thanks for the advice. I did a bit of googling to unpack :thumb: My old DC battery connectors were PP75, the battery to charger still has the same. I didn't know the name of them, so thanks for that. The HIGO I found that ship to the UK are a bit pricey. It may be that they are the one...
by drebikes
Dec 26 2018 5:17pm
Forum: E-Bike Technical
Topic: Wiring harness ideas
Replies: 8
Views: 365

Wiring harness ideas

Hi all, I'd very much appreciate some direction. Here's the problem: my ebike, based on an em3ev kit with infineon 9-fet and 9C motor, has just turned 5. It's been 4 good years in which I commuted and ridden for thousands of miles. This year, it has been a bit dodgy and I'm taking advantage of the w...
by drebikes
Jan 19 2018 4:33pm
Forum: E-Bike Technical
Topic: BMSbattery S06S wiring help and S-LCD5 setup
Replies: 5
Views: 680

Re: BMSbattery S06S wiring help and S-LCD5 setup

Thanks for the wiring diagram, I think I figured it out: https://photos.app.goo.gl/Je9DhcYdPk3vp2JZ2 The PAS logo appears on the display: https://photos.app.goo.gl/0vaR4DwRxYRx4Qi12 But: *once the PAS is connected, the throttle doesn't work anymore (normal?) *the motor isn't spinning I wonder if som...
by drebikes
Jan 16 2018 4:57pm
Forum: E-Bike Technical
Topic: BMSbattery S06S wiring help and S-LCD5 setup
Replies: 5
Views: 680

BMSbattery S06S wiring help and S-LCD5 setup

Hello team, I need a hand. It looks like I'm so close to having this setup working, but not quite. I have - Q100H, S06S, S-LCD5, a throttle and a PAS sensor powered by a 24V battery. What works - everything except the PAS assistance. I tried following the wiring diagram linked on the website, but th...
by drebikes
Nov 21 2017 11:51am
Forum: E-Bike Technical
Topic: Low voltage cutoff on BMSbattery controllers
Replies: 6
Views: 464

Re: Low voltage cutoff on BMSbattery controllers

Thanks for the feedback. If I'm honest I haven't seen the LVC on the picture, I was kinda ignoring the pic and relying just on the specs....which are very sparse.

If I get brave maybe I get on the FOC open source firmware, there I can adjust things :twisted:
by drebikes
Nov 21 2017 11:29am
Forum: E-Bike Technical
Topic: Low voltage cutoff on BMSbattery controllers
Replies: 6
Views: 464

Re: Low voltage cutoff on BMSbattery controllers

I get your point, but to understand where I come from I should have said I've tested my EM3EV Infineon 4110 controller that shouldn't be compatible with a 24V battery with exactly this. If you dial-in the correct cut-off VDCmin it works fine.
by drebikes
Nov 20 2017 4:17pm
Forum: E-Bike Technical
Topic: Low voltage cutoff on BMSbattery controllers
Replies: 6
Views: 464

Re: Low voltage cutoff on BMSbattery controllers

ok wturber, so it auto-configures based on the battery voltage it sees. I wonder if the 36/48V one can also recognize a 24V pack, but this would be bonus.
by drebikes
Nov 19 2017 9:46am
Forum: E-Bike Technical
Topic: Low voltage cutoff on BMSbattery controllers
Replies: 6
Views: 464

Low voltage cutoff on BMSbattery controllers

Hello, I wonder what the LVC values may be on the two controller bellow and if it ts adjustable: S06s: https://bmsbattery.com/ebike-kit/546-s06s-250w-torque-simulation-sine-wave-controller-ebike-kit.html S09s https://bmsbattery.com/ebike-kit/553-s09p-500w-torque-simulation-square-wave-controller-ebi...
by drebikes
Nov 12 2017 3:47am
Forum: E-Bike General Discussion
Topic: Source for Q128 motors AND repair parts
Replies: 7
Views: 872

Re: Source for Q128 motors

I'm thinking of the same sort of purchase, but I haven't found a good alternative. Other on the forums have pointed out that buying more motors tends not to raise shipping costs a lot. I tried and the second motor adds 50% shipping cost 5roughly°, while the third doesn't add any shipping cost. The q...
by drebikes
Oct 24 2017 8:22am
Forum: Motor Technology
Topic: How to isolate (posibly shorted) stator lams?
Replies: 10
Views: 1028

Re: How to isolate (posibly shorted) stator lams?

I have seen many motors and there's one thing that is sure - lams aren't perfectly insulated - ever. Even if they're not yet mounted on a shaft or in a case, put a multimeter on the edges to measure resistance from left to right and you'll find a high, but not infinite resistance. The reason why we ...
by drebikes
Oct 24 2017 3:58am
Forum: Motor Technology
Topic: Controller with torque control capability - need some advice
Replies: 0
Views: 294

Controller with torque control capability - need some advice

Hi all, I'm looking for a new controller. I have used for years em3ev's 9-FET Infineon 4110, but I haven't really searched for a controller since 2012, maybe you can help me. There are a few features that I like on the Infineon 4110 as it's not just a dumb DC-AC converter. Here's a very short "what ...
by drebikes
Oct 13 2017 3:24am
Forum: E-Bike General Discussion
Topic: Speedict Ebike - Anybody seen/tried this?
Replies: 1331
Views: 142217

Re: Speedict Ebike - Anybody seen/tried this?

I was seriously thinking of a Neptune 15 for my new pack, mostly for the adjustable BMS functions.

What are the issues you've seen? Normally I research a lot before I go for a product, but it's hard to find real user testimonials about the Neptune 15
by drebikes
Oct 12 2017 3:03pm
Forum: E-Bike Technical
Topic: First tesdrive custom battery pack
Replies: 0
Views: 235

First tesdrive custom battery pack

Hey, I just went out for a test drive of my new pack. It's in a very "alpha" stage, basically just 12 cells and some conectors. The pack will be a 15s1p of LG HG2. For now it contains just 10 HG2s and 2 Samsung 25R I have around the house. The connectors work, it powers the bike at about 100W, happy...
by drebikes
Oct 12 2017 2:50pm
Forum: E-Bike General Discussion
Topic: Q100 - Q100H - Q100C - what is the difference?
Replies: 21
Views: 2434

Re: Q100 - Q100H - Q100C - what is the difference?

Thanks guys, it's really helpful. I'm not sure I want to go for a Q128 because of the added weight. Still, I'll play around with the shipping options and if it ,akes sense I'll add a Q128C@201RPM to the bunch - the added torque of the Q128 along with the 260RPM speed do make a lot of sense, especial...
by drebikes
Oct 09 2017 3:10pm
Forum: E-Bike Technical
Topic: Precharge resistor required for 63V connection?
Replies: 2
Views: 332

Re: Precharge resistor required for 63V connection?

Hi Drunkskunk, thanks for the advice. Since I haven't yet decided on a particular connector, I will take your advice and get that anti spark you linked. It's not that I dislike the spark so much, but if for a few extra $ there is a complete solution available, why not try it?
by drebikes
Oct 09 2017 1:05pm
Forum: E-Bike General Discussion
Topic: Q100 - Q100H - Q100C - what is the difference?
Replies: 21
Views: 2434

Re: Q100 - Q100H - Q100C - what is the difference?

Not a bad idea. I will get two Q100H of different speeds and just see which one suits better. If it wasn't for this 16mph speed limit, the 260 would be a clear winner.

Thanks
by drebikes
Oct 09 2017 4:11am
Forum: E-Bike Technical
Topic: Precharge resistor required for 63V connection?
Replies: 2
Views: 332

Precharge resistor required for 63V connection?

Hi guys, help me out with a sanity check. I'm building a 15s1p LG HG2 battery pack and I wonder if I need a pre-charge circuit. My back of the napkin calculations with 63V max and 0.3Ohm (20mOhm per cell) gives an inrush current of 210A. I am obviously neglecting a few contact resistance mOhms here ...
by drebikes
Oct 08 2017 11:07am
Forum: E-Bike General Discussion
Topic: Q100 - Q100H - Q100C - what is the difference?
Replies: 21
Views: 2434

Re: Q100 - Q100H - Q100C - what is the difference?

Hi scooterman, I was reading your thread, nice ride. Now the bike I'm converting runs on 700x23c. I thought in American numbers it's a 28inch, looks like I'm wrong and it's a 29? The highest crank ratio I have is 48x13 and yes at 25mph it spindle very quickly. I can do that and keep it up for a whil...
by drebikes
Oct 08 2017 8:06am
Forum: E-Bike General Discussion
Topic: New LG HG2 custom battery pack - need advice on BMS/charger
Replies: 0
Views: 320

New LG HG2 custom battery pack - need advice on BMS/charger

Hello ebiker world In the last few monts at work I tested many many batteries and once the cells finihed the testing programme, my boss was happy enough to give them to me. I want to build a 15s1p LG HG2 pack, but obvioulsy aside from the cells I need a few other bits. I need some suggestions for BM...
by drebikes
Oct 08 2017 7:51am
Forum: E-Bike General Discussion
Topic: Q100 - Q100H - Q100C - what is the difference?
Replies: 21
Views: 2434

Re: Q100 - Q100H - Q100C - what is the difference?

Hi d8veh, There are a few things missing, yes. Here's the full setup as I see it now: *28" wheel on probably a 700Cx23C - I may go for a 28C rear if the 23C is unconfortable *the bike I mean to use has a wide spaced 8 gear shimano sora group; I tested a 10 speed SRAM equipped wheel if it fits in the...
by drebikes
Oct 06 2017 2:29pm
Forum: E-Bike General Discussion
Topic: Q100 - Q100H - Q100C - what is the difference?
Replies: 21
Views: 2434

Re: Q100 - Q100H - Q100C - what is the difference?

I don't think police know one way or the other, but in case of a serious crash I can see the insurers trying everything to weasel out as anything above legal is considered a motorcycle and needs special insurance. Your bike looks neat, very clean. It hardly looks like an ebike. I'm half thinking, if...
by drebikes
Oct 06 2017 11:15am
Forum: E-Bike General Discussion
Topic: Q100 - Q100H - Q100C - what is the difference?
Replies: 21
Views: 2434

Re: Q100 - Q100H - Q100C - what is the difference?

Thanks motomech, we're getting there. I'm thinking I may keep the ebike as legal as possible, so ideally the controller will have an option for a "legal mode". If I get over 16 it'll be just because I pedalled; normally I don't really any assistance above 16. The fact the 200RPM@36V wind could do ov...
by drebikes
Oct 06 2017 7:13am
Forum: E-Bike General Discussion
Topic: Q100 - Q100H - Q100C - what is the difference?
Replies: 21
Views: 2434

Re: Q100 - Q100H - Q100C - what is the difference?

Ok, thanks. It's a bit clearer. I also found a nice article at the ever useful Sheldon Brown about freewheels and cassettes: http://sheldonbrown.com/free-k7.html To come back to the Q-s: *the H has better magnets than the vanilla, thus better torque *the C has a cassette freehub integrated *they all...