Search found 124 matches

by pullin-gs
Oct 25 2019 5:39am
Forum: Battery Technology
Topic: Nkon not shipping outside EU?
Replies: 8
Views: 447

Re: Nkon not shipping outside EU?

Thats unfortunate. I'm not looking forward to paying USA-source prices for cells. :-( Hoping my 6-month old NKON-cell pack lasts long enough that when I need cells I will have a source like NKON to get them from. Maybe I'll store my good NKON-cell pack and use my old faithful LIPO pack until it dies...
by pullin-gs
Oct 13 2019 12:52pm
Forum: E-Bike General Discussion
Topic: Show me your front light(s)
Replies: 41
Views: 1875

Re: Show me your front light(s)

I'm using this light: https://www.ebay.com/itm/Universal-12V-80V-20W-Black-LED-Headlight-Lamp-Motorcycle-E-bike-6000K-X6MB/301821806442?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160727114228%26meid%3Da18034e42b484284a10de12a71fd7aea%26pid%3D100290%26rk%3D1%26rkt%3D4%26sd%3D3018218...
by pullin-gs
Oct 13 2019 11:15am
Forum: E-Bike Technical
Topic: Q128C replacement freehub body
Replies: 8
Views: 298

Re: Q128C replacement freehub body

Keep us posted on what you find.....
PS: 10,000 miles! That is impressive. I passed 1000 miles about a month ago. Motor still pulls strong.....but makes an odd swishing noise (one-way clutch is NOT slipping) that I can not pin down. My wife's Q128C is fine and is very quiet.

Thanks
by pullin-gs
Oct 02 2019 7:44am
Forum: E-Bike General Discussion
Topic: Show me your front light(s)
Replies: 41
Views: 1875

Re: Show me your front light(s)

VelluK wrote:
Oct 02 2019 4:20am
Additional information and link to the product would be nice
What additional information can you share about this light?
by pullin-gs
Oct 01 2019 9:37pm
Forum: E-Bike General Discussion
Topic: Added another cell to 10S 8AH pack....
Replies: 0
Views: 102

Added another cell to 10S 8AH pack....

TerraTrike w/20" wheels. New pack build 11S 8AH LIPO (made of used pouch cells from hybrid bus) pack trike does 25MPH fresh off charger. Range is 20 miles. My 10S6P 18AH 29E sanyo pack speed is 22MPH max. Range is 50 miles. I love my Q128C (328RPM, 36V) motor. I never expected to get 25MPH from a 50...
by pullin-gs
Sep 24 2019 7:41am
Forum: E-Bike Technical
Topic: Solar recharger
Replies: 8
Views: 343

Re: Solar recharger

The trike was a fun project. Good idea concerning mounting up a flexible panel. 150W could push it along at around 10MPH in current configuration. I built it light and agile (it rides like a go-cart), I love riding it in the 2-mile long twisty section of a walking/biking course close to me. So I wil...
by pullin-gs
Sep 23 2019 12:20pm
Forum: E-Bike Technical
Topic: Solar recharger
Replies: 8
Views: 343

Re: Solar recharger

bakaneko, That is the same controller I use for my ebike charge station. My solar solution is not mounted to my trike, but instead is a home charge station that I use for my two etrikes when parked. Great controller......using with 100W panel to charge 18ah 36V ebike battery. I'm putting into the co...
by pullin-gs
Sep 20 2019 7:53am
Forum: Battery Technology
Topic: A simple but effective NiMH BMS?
Replies: 15
Views: 4360

Re: A simple but effective NiMH BMS?

Why would you ever be in a situation where one of your cells is reversed? In all my years building packs (lithium and nickle chemistry) backwards cells are always caught in build process. Once pack is built thats that. Cells will never reverse on their own. :-) As far as balancing is concerned, NIMH...
by pullin-gs
Sep 19 2019 4:30pm
Forum: E-Bike Technical
Topic: 25$ 1500w controller wiring question
Replies: 8
Views: 251

Re: 25$ 1500w controller wiring question

Good cheap controller......I have two of the 38amp (1000W) versions.
by pullin-gs
Sep 02 2019 10:24pm
Forum: E-Bike Technical
Topic: charging 36v from 12v
Replies: 27
Views: 954

Re: charging 36v from 12v

This is what I am using. 12v-ish provided by solar panel. Output is programmed to 41.5v cutoff, which is about 2.5amps w/100watt power supply. Problem is that current output is not configurable. With unlimited 12V power source this charge controller will switch 300 watts which is quite a bit of amps...
by pullin-gs
Sep 02 2019 9:29am
Forum: E-Bike General Discussion
Topic: Build Report: MPPT Solar Charging Station for Etrike
Replies: 2
Views: 216

Re: Build Report: MPPT Solar Charging Station for Etrike

Is that a measured charge rate? If so, that's pretty darned good. I've considered doing something like this, but my bike is with me during the day. Though now with my shorter commute I could split my battery and leave one half home for charging while I run the bike with the other. Of course, given ...
by pullin-gs
Aug 31 2019 9:04am
Forum: E-Bike General Discussion
Topic: Tropical Mountain & Beach Daily Driver
Replies: 36
Views: 1373

Re: Tropical Mountain & Beach Daily Driver

I lived and worked all over Latin Amer. for 20 years, 7 of those years in Playa de Coco (Playa de Locos), Guanacaste (NW CR). A lot of those places, I shipped an Ebike because the Co. I was working for was shipping a container anyway, but I didn't have an Ebike in CR and I don't think it would have...
by pullin-gs
Aug 30 2019 10:55am
Forum: E-Bike General Discussion
Topic: Build Report: MPPT Solar Charging Station for Etrike
Replies: 2
Views: 216

Build Report: MPPT Solar Charging Station for Etrike

Works great. Charges 10S6P 18AH pack at rate of 2.5amps in full sun. I use it for both my Etrikes. Anchored 100W panel to south-facing side of garage. Grounded panel to steel pipe on gas meter using 12awg solid copper. Drilled 1/2" hole through wall for 12awg solid copper wire to charge controller. ...
by pullin-gs
Aug 27 2019 4:59pm
Forum: Battery Technology
Topic: DIY case for 12V 11-Ah pack from pouch cells
Replies: 15
Views: 826

Re: DIY case for 12V 11-Ah pack from pouch cells

I use a waterproof guncase which houses 3S3P 12V 24AH pack build for my E-kayak project. https://www.amazon.com/gp/product/B00JVA7UGM/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1 It houses the BMS and speed-control/throttle for the brushed trolling motor also. This doubles as my power source for...
by pullin-gs
Aug 15 2019 12:42pm
Forum: E-Bike Technical
Topic: 17a or 20a controller?
Replies: 13
Views: 462

Re: 17a or 20a controller?

Power delivered to motor has little to do with controller's max amp rating......it is a function of motor's KV, battery's impedance, motor&controller's impedance, battery voltage, and finally waveform delivered to motor by controller. If you take a controller rated at 5000amps with 36V input, power ...
by pullin-gs
Aug 12 2019 5:32pm
Forum: E-Bike Technical
Topic: Q128C motor teardown reviews new version corrected clutch spring issue.
Replies: 5
Views: 238

Re: Q128C motor teardown reviews new version corrected clutch spring issue.

Motor put back together and mounted on trike.....just finished 20 minute ride.
The light swishing noise is still there...mostly happens when trike is at 18mph and 23mph (max speed). Does not happen at lower speeds.
by pullin-gs
Aug 12 2019 1:31pm
Forum: E-Bike Technical
Topic: Q128C motor teardown reviews new version corrected clutch spring issue.
Replies: 5
Views: 238

Re: Q128C clutch is starting to slip.

Interesting find.....my Q128C (purchased January 2019) has an updated version of the clutch. It uses the typical 3 rollers and 3 springs....but it also has three hollow cylinders that are solid at one end which encapsulate each spring. The cylinder/spring assembly slides into a hole (in past designs...
by pullin-gs
Aug 12 2019 12:07pm
Forum: E-Bike Technical
Topic: Q128C motor teardown reviews new version corrected clutch spring issue.
Replies: 5
Views: 238

Re: Q128C clutch is starting to slip.

That was easy to open.....all I had to do was: remove wheel from trike remove 8sp gear basket Using bench-vice, open wide enough to accomidate 3/16" lip on CST-side of case. Clamp motor housing (only the 3/16" lip) tightly(!) Grab entire wheel, spin counter-clockwise to loosen (but dont take apart y...
by pullin-gs
Aug 12 2019 11:43am
Forum: E-Bike Technical
Topic: Q128C motor teardown reviews new version corrected clutch spring issue.
Replies: 5
Views: 238

Re: Q128C clutch is starting to slip.

Thanks.
I'm going to open my wheel up now and take a look.
Will post back.
by pullin-gs
Aug 11 2019 9:47pm
Forum: E-Bike Technical
Topic: Q128C motor teardown reviews new version corrected clutch spring issue.
Replies: 5
Views: 238

Q128C motor teardown reviews new version corrected clutch spring issue.

Edit: Changed title from "Q128C clutch is starting to slip." to "Q128C motor teardown reviews new version" because of BMS clutch redesign that corrected clutch spring issues (mangled springs, slipping clutch). *** ***Original post***** Still pulls fine, but clutch started slipping on my last ride (m...
by pullin-gs
Aug 09 2019 2:58pm
Forum: E-Bike General Discussion
Topic: Heavy Duty Ebike Brakes Suggestions?
Replies: 24
Views: 722

Re: Heavy Duty Ebike Brakes Suggestions?

I went to larger rotors.
All I had to do was make sure everything clears OK with new rotors, buy a pair of caliper mounts for new rotor size.
I did go with floating rotors whose rivets rubbed a bit on caliper, so I had to do some minor dremo tool grinding on caliper frames.
Braking is much better.
by pullin-gs
Aug 09 2019 1:47pm
Forum: E-Bike General Discussion
Topic: OK, who rides a recumbent???
Replies: 47
Views: 2972

Re: OK, who rides a recumbent???

I ride both......my e-powered recumbent trike feels more like a go-cart than a bike. :-)
Fun-factor is off the charts. :-)
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by pullin-gs
Jul 19 2019 4:05pm
Forum: E-Bike General Discussion
Topic: I saw a park ranger call out an e-bike rider on FL bike path.......
Replies: 41
Views: 1513

I saw a park ranger call out an e-bike rider on FL bike path.......

I was talking with a park ranger at my half-way point of my ride (road bike) today. An older gentleman with a nice E-Bike pulls up beside us. The park ranger asks him if it is peddle assist. The owner says it will do peddle-assist or can be used with a throttle. The ranger says that E-Bikes are not ...
by pullin-gs
Jul 18 2019 10:06pm
Forum: E-Bike General Discussion
Topic: Big bucks for a brake rotor?
Replies: 28
Views: 1249

Re: Big bucks for a brake rotor?

wturber wrote:
Jul 13 2019 12:10am
Even some quite wealthy people are surprisingly frugal and consider frugality to be a virtue as well as a good first step towards building wealth.
Frugal habits die hard.
One who achieves wealth of his own making often never increases spending once wealthy.
by pullin-gs
Jul 18 2019 11:05am
Forum: E-Bike Technical
Topic: How I "unstuck" hub motor clutch
Replies: 0
Views: 173

How I "unstuck" hub motor clutch

BMS Q128C Motor was practically new when clutch hung up. I complained to seller to no avail. My wife has been riding around for past 100 miles knowing that the hub motor clutch was stuck. I did not want to tear down....no time or desire. Anyway, I had an idea: What if I disconnected motor, shorted o...