Search found 143 matches

by OCD
Apr 18 2019 1:33pm
Forum: E-Bike General Discussion
Topic: What makes for a beautiful custom eBike?
Replies: 33
Views: 1869

Re: What makes for a beautiful custom eBike?

Hand built from scratch including: fenders/frame/forks/handlebars/72v 24ah LGHG2 pack. Also features CA, led head/tail lights, 8" Avid brakes, Brooks leather grips, etc. Upgrading to QS motor soon! https://scontent.fyvr4-1.fna.fbcdn.net/v/t1.0-9/13697239_136817696750836_3529058968007109294_n.jpg?_nc...
by OCD
Jan 25 2019 8:39pm
Forum: Battery Technology
Topic: Importance of matched cell resistance in pack?
Replies: 7
Views: 347

Re: Importance of matched cell resistance in pack?

I googled and checked the DIY powerwall FB page and came up with DSstyles liitokala lii-500 being a decent unit for the money (trusting the opinions of others'). I do not see the unit as being able to be calibrated. The cells all came from Battery Bros and were tested starting with the state of char...
by OCD
Jan 24 2019 9:49pm
Forum: Battery Technology
Topic: Importance of matched cell resistance in pack?
Replies: 7
Views: 347

Importance of matched cell resistance in pack?

I bought a battery charger/tester and noticed while testing the first group of four LGHG2s that the MR values (I assume internal resistance) have variations. Of the four tested so far, two were 32mr, one 38mr and 45mr for the other. Is it best to do a charge/test cycle on all of the cells I have and...
by OCD
Jan 04 2019 9:28am
Forum: Battery Technology
Topic: Fresh battery build issues
Replies: 15
Views: 548

Re: Fresh battery build issues

Hemo: Agreed! I have begun the process of deconstructing this pack. If I have to sink more time into fixing it, I may as well work until I have a connection arrangement that at least allows me to take advantage of the full output power of these cells.
by OCD
Jan 03 2019 8:44pm
Forum: Battery Technology
Topic: Fresh battery build issues
Replies: 15
Views: 548

Re: Fresh battery build issues

Hemo: it is the 14th group out of 20 that is sitting at 4.0v, the other 19 groups are at exactly 3.6v. The groups are 9 cells each. I have read that balancing won't happen until one group reaches 4.2v which this one won't charge up to. Could this be related to a problem with the internal resistance ...
by OCD
Jan 03 2019 8:19pm
Forum: Battery Technology
Topic: Fresh battery build issues
Replies: 15
Views: 548

Re: Fresh battery build issues

Thanks Amberwolf I didn't realize we could upload directly to ES will look into that. Everybody else thank you for your input and suggestions. I realize the layout was a copied inefficient Chinese design but I built a multi nickel layered pack before this one which worked great for about a month and...
by OCD
Jan 03 2019 9:38am
Forum: Battery Technology
Topic: Fresh battery build issues
Replies: 15
Views: 548

Re: Fresh battery build issues

Thanks Amberwolf: Since Photobucket screwed everyone I have not found anywhere to store my photos and this site won't let me link to pics stored on Facebook, sorry to those that can't see it. I will follow your suggestion on checking the individual cells. I bought from Battery Bros as they were reco...
by OCD
Jan 02 2019 9:16pm
Forum: Battery Technology
Topic: Fresh battery build issues
Replies: 15
Views: 548

Fresh battery build issues

I've built a total of two batteries now and not having much luck with this one. The pack was built from 180 LGHG2 cells from Battery Bros, welded with a Sunco using .015 pure nickel strips. The bms is rated at 100 amp continuous. When I put the pack on the charger for the first time it started at 70...
by OCD
Nov 23 2018 9:58am
Forum: Battery Technology
Topic: Can I shorten BMS sensing wires?
Replies: 4
Views: 302

Re: Can I shorten BMS sensing wires?

Thanks, that's what I thought. I replaced the group that read low with another group but it did the same thing. Could I have the sense wire on the wrong side of the group somehow?
by OCD
Nov 22 2018 8:28pm
Forum: Battery Technology
Topic: Can I shorten BMS sensing wires?
Replies: 4
Views: 302

Can I shorten BMS sensing wires?

I tried ES search and google but couldn't find an answer. I'm having trouble with a pack I built (20s 6p) where one group (19th) ends up one volt lower than the other groups then the BMS shuts the pack down. I changed the group thinking one of the cells were bad and the pack did the same thing. Whil...
by OCD
Oct 30 2018 10:26am
Forum: E-Bike Build Threads / Photos & Video
Topic: eRuckus style
Replies: 10
Views: 1150

Re: eRuckus style

Thanks guys:

There's a lot of other things dragging me away from this build but it will progress as time permits. My chain management is all worked out now so it at least "looks legal" if I get pulled over. Mostly some frame elements to finish, mount lights, make a rear cargo rack, etc.
by OCD
Oct 18 2018 7:09pm
Forum: E-Bike Build Threads / Photos & Video
Topic: eRuckus style
Replies: 10
Views: 1150

Re: eRuckus style

The tires are 16" (e)bicycle tires, that's why I doubt anything wider than 3" is available. This is supposed to be a low dollar build from mostly scrap materials. The area you have pointed to is actually the factory frame but where I have added the upright seat support is tacked only and not welded ...
by OCD
Oct 16 2018 9:22pm
Forum: E-Bike Build Threads / Photos & Video
Topic: eRuckus style
Replies: 10
Views: 1150

Re: eRuckus style

Tire size currently 2.5" x 16 front, 3.0" x 16 rear. That's as large as they come I believe. Here's the pedal lock I made mostly out of scraps from my tool box junk drawer. Now I'll have somewhere secure to put my feet without having to add an extra set of foot pegs. Tapped the holes and installed b...
by OCD
Oct 12 2018 11:46am
Forum: E-Bike Build Threads / Photos & Video
Topic: eRuckus style
Replies: 10
Views: 1150

eRuckus style

While travelling in Asia you see a lot of these lowered/highly customized Honda Ruckus scooters which I think have a cool look. I've decided to borrow the vibe for a fun, low dollar build although there's no cheap way to replicate the look of those fat little tires. https://scontent.fyvr4-1.fna.fbcd...
by OCD
Sep 25 2018 8:52am
Forum: E-Bike Technical
Topic: Tilting trike pivot location
Replies: 4
Views: 406

Re: Tilting trike pivot location

Thanks for your info Triketech: Does that mean that having the pivot inline with the centre line of the (motor) axle would be the best compromise? I'm trying to also keep it simple by having a single pivot attached to the rear of the front section of frame with a lock so it does not tilt at low spee...
by OCD
Sep 23 2018 11:03am
Forum: E-Bike Technical
Topic: Tilting trike pivot location
Replies: 4
Views: 406

Tilting trike pivot location

I'm planning to build a 2wd tilting delta cargo trike (two wheels in the back). What height would be best for the pivot to allow it to right itself after a turn? Should the pivot be above, below or on the centre line of the rear wheel axles? :roll:

Thanks
by OCD
Jul 27 2017 8:51am
Forum: E-Bike Technical
Topic: Help wiring Kelly KLS-S controller
Replies: 2
Views: 720

Re: Help wiring Kelly KLS-S controller

For those that view this post and may benefit from the answers: 1) According to QS support the contactor is not actually needed for correct operation as the pink wire is enough to turn on/off the controller. The suggested pre-charge resistor across the contactor makes for a softer start on the contr...
by OCD
Jul 25 2017 12:09am
Forum: E-Bike Technical
Topic: Help wiring Kelly KLS-S controller
Replies: 2
Views: 720

Re: Help wiring Kelly KLS-S controller

Also, the yellow and blue Hal sensor wires are interchanged between the QS motor and the Kelly, should they be swapped to match?

Thanks

https://www.facebook.com/photo.php?fbid ... =3&theater
by OCD
Jul 24 2017 8:44pm
Forum: E-Bike Technical
Topic: Help wiring Kelly KLS-S controller
Replies: 2
Views: 720

Help wiring Kelly KLS-S controller

I recently purchased an order of motors from QS and decided to try the Kelly controllers they also carry. As I had ordered some 45H V1 motors, it was recommended that the KLS7218S would be my best choice. I used both the site search and google search to look for background info here on ES but after ...
by OCD
Jun 10 2017 11:16pm
Forum: Alternative Energy
Topic: Is a solar power fridge available?
Replies: 6
Views: 971

Is a solar power fridge available?

I'm doing a hub motor conversion for a guy on his ice cream trike who was asking for information about a small solar powered display refrigerator he saw a vendor had at an event he attended. It may be an urban myth that there's an all-in-one solution for this as the vendor wouldn't give him any info...
by OCD
Oct 31 2016 12:28pm
Forum: E-Bike Technical
Topic: 19" Motorcycle Wheels vs 26" Bicycle Wheels (rim and tires)
Replies: 2104
Views: 282113

Building front moto wheels

A question for Rix or anyone else in the know: I have a moto wheel set to build for an up coming project, the rear went fine as it was 1x, but I wasn't thinking about the effect of the angled holes on the front and so ordered spokes for 3x like a normal wheel. Of course it turns out this puts some o...
by OCD
Aug 15 2016 11:45pm
Forum: Items for Sale - New
Topic: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China
Replies: 1263
Views: 223055

Re: QS MOTOR,0.5-16kW Electric In-Wheel Hub Motors Manufactu

I sent him an email and asked that he reply here, thanks for your help. Marin purchased this motor from me which was part of a sample batch I received from one of QS Motor's wholesalers, not from them directly. I wasn't able to get a reply about the mysterious 6th wire from them, but the QS site li...
by OCD
Aug 10 2016 8:56am
Forum: E-Bike Build Threads / Photos & Video
Topic: My Board Tracker
Replies: 16
Views: 1659

Re: My Board Tracker

Ah, the pics are better here than on Rad Rod Bikes! It looks like a Crystalite on the rear with spoke washers? As I posted over there, it's a great retro e-build, very nice work. 8)
by OCD
Jul 12 2016 12:13am
Forum: E-Bike General Discussion
Topic: This Custom Ebike Is Pretty Cool Looking
Replies: 5
Views: 497

Re: This Custom Ebike Is Pretty Cool Looking

I agree, it looks cool. It doesn't look like it's very powerful though.
by OCD
Jul 01 2016 11:19am
Forum: E-Bike Technical
Topic: Hub motor cover (cable side) doesn't squeeze into place
Replies: 33
Views: 1773

Re: Hub motor cover (cable side) doesn't squeeze into place

If I understand you second problem correctly the bearing is too tight to slide onto the axle, you may need to use a small torch and heat the inner race of the bearing until it expands very slightly, then quickly push it onto the shaft into position. I've rebuilt/rewound a lot of motors in my time an...