Search found 147 matches

by kingjamez
May 16 2017 1:51pm
Forum: E-Bike Build Threads / Photos & Video
Topic: My EEB Commuter
Replies: 30
Views: 4116

My EEB Commuter

I just got done with my build of an electric moped. It's not really a bicycle, the pedals are only there for backup in case something goes wrong. Specs: EEB steel frame with moto seat QS205V3 3.5T Hubmotor 17" Moped wheel front and back Michelin Gazelle 2.75" tires Hubsinks and Ferrofluid Mobipus 72...
by kingjamez
May 16 2017 11:25am
Forum: E-Bike General Discussion
Topic: Ebike Weight....
Replies: 25
Views: 3017

Re: Ebike Weight....

....We've had a century and a half to work out what makes a good bicycle, and low weight tops the list of criteria. Yep, if you want a bicycle, forget about motor and batteries. :mrgreen: As soon as it has a motor, your bicycle becomes a motor cycle. Then you can define your requirements and optimi...
by kingjamez
May 15 2017 3:59pm
Forum: E-Bike General Discussion
Topic: 750/1500 watt hubmotor
Replies: 13
Views: 1519

Re: 750/1500 watt hubmotor

King Jamez Thanks for the info, have you been running the controller that came with it? I'm curious what the number of windings is on the motor they sent you. I'll go ahead and read up on how to add ferofluid, that's the stuff that helps keep the thing cool isn't it? No, that controller is sitting ...
by kingjamez
May 15 2017 1:38pm
Forum: E-Bike General Discussion
Topic: 750/1500 watt hubmotor
Replies: 13
Views: 1519

Re: 750/1500 watt hubmotor

I have that kit, and am the one who wrote the review.

I've learned some more things since writing the review. The motor has 0.35mm laminations and has a 30mm stator. It's really a very good deal for the money. I added ferrofluid and hubsinks and it's now quite capable.

-Jim
by kingjamez
May 15 2017 10:01am
Forum: E-Bike General Discussion
Topic: My 60mph ebike build
Replies: 108
Views: 9579

Re: My 60mph ebike build

Here is the fender I used. I just attached it to the rear shock.

https://www.amazon.com/SKS-Germany-X-Tr ... ear+fender
IMG_3441.JPG
IMG_3441.JPG (88.19 KiB) Viewed 1092 times
I covered it in vinyl to match the rest of the bike.

-Jim
by kingjamez
May 14 2017 1:56pm
Forum: E-Bike General Discussion
Topic: My 60mph ebike build
Replies: 108
Views: 9579

Re: My 60mph ebike build

So I have doing a lot of caluations on the kv/tire of the QS 205 H50. Cool simple math help you figure out possible speeds. My question is does higher kv tax the motor/battery/controller and if so what can be done to remedy a higher kv to achieve stability in that setup? Sent from my SM-N900T using...
by kingjamez
May 14 2017 1:45pm
Forum: E-Bike General Discussion
Topic: My 60mph ebike build
Replies: 108
Views: 9579

Re: My 60mph ebike build

Use a higher KV, lace it in a smaller wheel. Kingjamez did just that, fitting 17" instead of 19". Then a higher KV is still pulling more power. 50 Mph is slow for his motor in a 17" wheel. It could be because power is limited, weight is high, battery is low, or all of the above. I'm not sure I'm sl...
by kingjamez
May 12 2017 4:43pm
Forum: E-Bike General Discussion
Topic: Commuter...Hub or mid drive?
Replies: 238
Views: 28016

Re: Commuter...Hub or mid drive?

I really like my TripWire. It's a very easy to install system for e-brake cutoff.

http://www.ebikes.ca/shop/electric-bicy ... -pull.html

-Jim
by kingjamez
May 12 2017 4:20pm
Forum: Motor Technology
Topic: Hubsink + Ferrotec + protective paint + black paint = WOW
Replies: 23
Views: 3819

Re: Ferrotec + hubsink + protective paint + black paint = WO

Right on man. I'm running the same thing minus the protective paint on a 3.5T and 20S. The ferrofulid and hubsink combo makes the motor a real beast. Substantially higher average powers can be maintained on a motor that was already really good in stock form.

-Jim
by kingjamez
May 11 2017 6:00pm
Forum: Battery Technology
Topic: Chademo or J1772 Quick Charge?
Replies: 7
Views: 910

Re: Chademo Quick Charge?

Great video. One Q though. Iirc the statiator charger is a 5 a charger so not really a quick charge option? I mean how long time to charge to 85% when connected via J1772? Same as if you charged at home, as the statiator is limiting the charging? Yep, I really wish the Satiator was faster, but I gu...
by kingjamez
May 11 2017 5:18pm
Forum: Battery Technology
Topic: Chademo or J1772 Quick Charge?
Replies: 7
Views: 910

Re: Chademo Quick Charge or J1772?

macribs wrote:Thx. Will look into the J1772. Seems there are a few of those around too.
In case you hadn't seen my video:
by kingjamez
May 11 2017 4:35pm
Forum: Battery Technology
Topic: Chademo or J1772 Quick Charge?
Replies: 7
Views: 910

Re: Chademo Quick Charge?

Have you seen the size of a CHAdeMO port? It's freakin huge. It wouldn't reasonably fit on any ebike I'm aware of. All DC fast chargers aren't made for charging low voltage ebike batteries. CHAdeMO stations are designed for 500V @125 amps or 50+KW of output... far far to high for ebikes. I'd bet goo...
by kingjamez
May 11 2017 2:11pm
Forum: Battery Technology
Topic: "Fireproof" blanket?
Replies: 6
Views: 884

Re: "Fireproof" blanket?

A bike that I have to watch the entire time it's charging isn't worth anything to me. If I did that with my car, I'd go back to gas. To that end, I'm going to build the battery as safely as possible and then use this blanket as an extra layer of insurance when I'm charging unattended. I got the blan...
by kingjamez
May 11 2017 7:40am
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 22806

Re: Mobipus Controllers

Thanks for your answers Shenta. Is the PowerLock pin used to pre charge the capacitors before to close the contactor ? The AUX output can't provide power to the contactor but what is its voltage level ? What motor characteristics do we have to enter ? I don't believe the powerlock pin precharges th...
by kingjamez
May 10 2017 4:26pm
Forum: E-Bike General Discussion
Topic: My 60mph ebike build
Replies: 108
Views: 9579

Re: My 60mph ebike build

My QS205 50H 3.5T (~13KV) in a 17" Moto Wheel on 20S in an EEB frame goes faster than I care to without enabling field weakening. I was worried about the maximum speed and kicked myself for quite a while on only going with a 17" wheel instead of a 19", but now that I've got it running, I personally...
by kingjamez
May 10 2017 1:56pm
Forum: Battery Technology
Topic: NEED Lipo HELP
Replies: 16
Views: 1274

Re: NEED Lipo HELP

Yeah those 6s 16000mah batteries were once priced very well now they're a little more pricy. Would anyone recommend this chinese made 48v 12ah pack? http://www.ebay.com/itm/132073702029?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT It costs about as much as buying lipos then connecting...
by kingjamez
May 09 2017 3:59pm
Forum: Battery Technology
Topic: Westart 10ah graphene cells
Replies: 42
Views: 3417

Re: Westart 10ah graphene cells

Chemistry. These are NCM and not lipo. I hoping the cells have a battery quality control. And can make a light 20s 1p pack that should handle 80amps. If sag I will use a second 20s 1p parelle to the first. I understand that 2p would the best choice. But will be bolting together. So can remake as tw...
by kingjamez
May 09 2017 11:00am
Forum: Battery Technology
Topic: Westart 10ah graphene cells
Replies: 42
Views: 3417

Re: Westart 10ah graphene cells

What advantage do you see on these over the HK packs that I posted earlier? If you wait a few weeks, you can get them for less money, already assembled.

-Jim
by kingjamez
May 08 2017 3:10pm
Forum: E-Bike Technical
Topic: Brake upgrade for hard commuting
Replies: 12
Views: 1524

Re: Brake upgrade for hard commuting

My bike weighs a ton and I have a lot of starts and stops on my 10 mile commute, not as bad as yours sounds though. I too highly recommend going the regen route. It makes a massive difference in brake wear and performance. I really don't care much about putting energy back into the battery pack, but...
by kingjamez
May 06 2017 7:52am
Forum: E-Bike Technical
Topic: Mobipus Controllers
Replies: 170
Views: 22806

Re: Mobipus Controllers

Hello all at Endless Sphere Ohbse: unexpectedly low voltage isn't actually low We have also regen throttle voltage mapping, if you want to use Regen Throttle function, I could help you to set it up. Thanks Shenta. I'm very happy with how my regen throttle is working, the only reason I had any troub...
by kingjamez
May 05 2017 10:15am
Forum: E-Bike General Discussion
Topic: Kickstand for EEB type bike.
Replies: 14
Views: 2036

Re: Kickstand for EEB type bike.

If you are not momentarily propping it by the rear wheel against something or leaving it in your garage, then it should be locked via heavy cable to an object ideally strong enough to at least hold the bike up, LOL. It sounds like you are unaware how quickly a motorcycle will disappear into a van, ...
by kingjamez
May 05 2017 5:59am
Forum: Battery Technology
Topic: Westart 10ah graphene cells
Replies: 42
Views: 3417

Re: Westart 10ah graphene cells

I'm using 10 of these in my bike: https://hobbyking.com/en_us/turnigy-graphene-10000mah-4s-15c-w-5-5mm-bullet-connector.html They go on sale at HK for $49.99 regularly. They are already assembled and are very (very) well constructed. If you are patient for the next sale, you can save some money and ...
by kingjamez
May 04 2017 11:29pm
Forum: E-Bike General Discussion
Topic: Kickstand for EEB type bike.
Replies: 14
Views: 2036

Re: Kickstand for EEB type bike.

flat tire wrote:Real bikes don't have kickstands. You can always lean it against something.
An EEB frame with 17" Moto wheels housing a QS205V3, Mobipus 72200, and 20Ah of 20S Lithium is about as far from a "real" bike as you can get and still have pedals.

This thing is a heavy beast.

-Jim
by kingjamez
May 04 2017 11:27pm
Forum: E-Bike General Discussion
Topic: Kickstand for EEB type bike.
Replies: 14
Views: 2036

Re: Kickstand for EEB type bike.

ecycler wrote:People still use kickstands on bicycles?
What is the alternative?

I will be parking my bike in a parking spot while I'm charging it at work. It needs to stand up on it's own.

-Jim
by kingjamez
May 04 2017 11:51am
Forum: Battery Technology
Topic: "Fireproof" blanket?
Replies: 6
Views: 884

Re: "Fireproof" blanket?

Answered my own question.

I just bought an 18oz Silica Welding Blanket. I found a 6'x6' blanket for less than $50.00 that I'll shape to make a custom made cover for the body of my bike.

-Jim