Search found 93 matches

by Jolly Jumper
Dec 09 2013 6:11pm
Forum: E-Bike Build Threads / Photos & Video
Topic: HubMonster hits 107mph on the flats on page 6
Replies: 172
Views: 26914

Re: HubMonster hits 107mph on the flats on page 6

Nice hubmonster bicylcle.
I guess faux pedaling is not needed in the paradise :mrgreen:

Hase this hub a drumbrake?
Is the battery in the swing arm more unsprung wight?
by Jolly Jumper
Dec 03 2013 3:58am
Forum: General Discussion
Topic: Amazon plans to use drones!!!
Replies: 65
Views: 8500

Re: Amazon plans to use drones!!!

Zoot Katz wrote: How can this be better than a bicycle?
Robots need not to pay taxes thats why Tesla and all the other have such a success :mrgreen:
by Jolly Jumper
Dec 02 2013 11:04pm
Forum: E-Bike General Discussion
Topic: Who uses Slip Charge mode on their controller? I love it!
Replies: 19
Views: 2494

Re: Who uses Slip Charge mode on their controller? I love i

It´s more efficient to release the throttle and just roll out 100 yard before your stop.
Rather than release the throttle and Slip Charge 25 yard before your stop.

I don´t use slip charge just the normal e-brake regen when needed :mrgreen:
by Jolly Jumper
Dec 01 2013 8:44pm
Forum: General Discussion
Topic: Porsche crash, on fire, kills 2
Replies: 60
Views: 3464

Re: Porsche crash, on fire, kills 2

This was the film shooting for (Die) Fast & (C)uriouse 8
by Jolly Jumper
Dec 01 2013 3:00am
Forum: Battery Technology
Topic: Thread for new battery breakthrough PR releases
Replies: 1625
Views: 192882

Re: 500 Wh/kg - Long-Life, High-Rate Lithium/Sulfur Cell

Evs make no noise, loud pipes save lives. Batterys are dangerous and who has time to charge it. You can change all tihs: Build a the speaker from you soundsystem outside on your car and play always hardcore anytime you drive :mrgreen: ygWV__SMt7M Filling your batterie housing with gasoline would ma...
by Jolly Jumper
Nov 30 2013 9:33pm
Forum: E-Vehicles General Discussion
Topic: Batteries vs Cold ☃
Replies: 80
Views: 27696

Re: Batteries vs Cold

Bad for Bike: All lubricant stiffens into a tar like substance that makes turning the pedals, crank, chain, hubs, derailleur like pulling taffy. Brakes seem to engage in slow motion and when released, you can watch as the brake levers slowly return to normal position. All of a sudden you want to pu...
by Jolly Jumper
Nov 30 2013 9:18pm
Forum: Battery Technology
Topic: Why 18650 makes things worse for EV.....
Replies: 34
Views: 2577

Re: Why 18650 makes things worse for EV.....

... i bet if they would produce 20Ah pouches they would be selled in billions in a blink of an eye. :?: why then has LG's new EV pouch plant in the USA been sat idle for months ? Don´t know ask them. Maybe they asking to much price for there pouches (they should and could be 10% cheaper than 18650 ...
by Jolly Jumper
Nov 30 2013 8:29pm
Forum: Battery Technology
Topic: Why 18650 makes things worse for EV.....
Replies: 34
Views: 2577

Re: Why 18650 makes things worse for EV.....

I feel Luke is spot-on with his comments. Secondary Li-ion battery tech has been primarily driven by the portable electronics industry. 18650's are used in huge numbers in laptops and (I suspect a knock-on from laptops) power tools. They are a mature technololgy because they are placed in their mil...
by Jolly Jumper
Nov 30 2013 8:25pm
Forum: Battery Technology
Topic: Why 18650 makes things worse for EV.....
Replies: 34
Views: 2577

Re: Why 18650 makes things worse for EV.....

cwah wrote:What will be the highest gravimetric (wh/kg) dense cell commercially available in 2014?
They are currently working in there labs to replace the graphit with something better but only *** knows if it comes in slomo or rocketfast commercial afailable.
So next step is maybe 30% better wh/kg :lol:
by Jolly Jumper
Nov 28 2013 12:39am
Forum: Battery Technology
Topic: Why 18650 makes things worse for EV.....
Replies: 34
Views: 2577

Re: Why 18650 makes things worse for EV.....

Its need more robot skills to roll the layers and connect all these layers to the can poles than just lay them like sheets of papers of each other and easy put this in a film welding machine. Can´t comprehend your 200k vs 10m estimation. A standard for pouches would be easy to find. Take the size fr...
by Jolly Jumper
Nov 27 2013 11:54pm
Forum: Battery Technology
Topic: Why 18650 makes things worse for EV.....
Replies: 34
Views: 2577

Re: Why 18650 makes things worse for EV.....

High C-rate 18650's have lots of foil edge joint contact points to get a low resistance joint to the can. You don't want to be conducting down the length of the long spiral of super thin Cu/Al foils much at all before hitting the can again in a cell rated for 30A. It unfortunately eats both gravame...
by Jolly Jumper
Nov 27 2013 11:52pm
Forum: Battery Technology
Topic: Why 18650 makes things worse for EV.....
Replies: 34
Views: 2577

Re: Why 18650 makes things worse for EV.....

Didn´t knewed they need compression. RC Licos don´t have it. But made off aluminium with smart engeniering its maybe only 2-5% more wight.

Pannasonics 3400mah 1C have >250W/kg

I would instantly sell my old battery when there would be a 10C constant pouch cell 24R ~300g format with ~266W/kg
by Jolly Jumper
Nov 27 2013 10:41pm
Forum: E-Bike General Discussion
Topic: Where to put the battery
Replies: 28
Views: 2865

Re: Where to put the battery

In a emergency brake situation where u need front brake you have some more meters brake way becouse your backwheel will lift much earlier with a 12-14kg in this position. In addition you have more stess in the head-set-bearing and tube and the stearing is more sluggish. For ebikes that drive not fa...
by Jolly Jumper
Nov 27 2013 9:39pm
Forum: Battery Technology
Topic: Why 18650 makes things worse for EV.....
Replies: 34
Views: 2577

Why 18650 makes things worse for EV.....

As i have seen the http://www.buya123batteries.com/APR18650M1A_Lithium_Ion_Cylindrical_Cell_p/apr18650m1a.htm i calculatet the more wight against the 19.5Ah pouches. Surprise Surprise :mrgreen: they are wayyy more heavy AMP20M1HD-A 495g with 19.5Ah = 130W/kg APR18650M1A 39g with 1.1Ah = 93W/kg * 39%...
by Jolly Jumper
Nov 27 2013 4:12pm
Forum: E-Bike General Discussion
Topic: Where to put the battery
Replies: 28
Views: 2865

Re: Where to put the battery

I dont´ like these front mounted battery´s. I guess ist about 12-14kg including the case and mount. We all know the brake-power a front brake on a fast e-bike have and must have. In a emergency brake situation where u need front brake you have some more meters brake way becouse your backwheel will ...
by Jolly Jumper
Nov 27 2013 2:42pm
Forum: E-Bike General Discussion
Topic: DELETED DOCTORBASS YOUTUBE CHANNEL !!!!!
Replies: 33
Views: 2930

Re: DELETED DOCTORBASS YOUTUBE CHANNEL !!!!!

Thats very sad. I learned much from your videos
http://en.wikipedia.org/wiki/Dailymotion maybe better?
by Jolly Jumper
Nov 25 2013 6:02pm
Forum: E-Bike Technical
Topic: Winter time, battery, discharge performance
Replies: 2
Views: 563

Re: Winter time, battery, discharge performance

A123 Lifepo4 are bestfor it but all lithium batterys like it most in the 15-30°C range. out off this range charging and discharging is bad for cycle life the more away from 23°C the battery is the fewer cycle life you can expect (exception is storage where <5°C is better). Teh best thing for winter ...
by Jolly Jumper
Nov 24 2013 8:56am
Forum: E-Bike Build Threads / Photos & Video
Topic: Re: Street LEGAL Custom Bomber build! :-)
Replies: 262
Views: 62231

Re: Custom Stealth Bomber build( Photo update )

I also want know what tires you have ? e-bike 45 ready or moped/mc tires ? would both be good for a TÜV approval ?
by Jolly Jumper
Nov 09 2013 10:00am
Forum: General Discussion
Topic: Songs ebikers love (?) to hear in the city (thread)
Replies: 14
Views: 1410

Re: Songs ebikers love (?) to hear in the city (thread)

I wonder what song hase played in this restaurant ? :mrgreen:

First i wanted post that video in the ebiker joke thread with a standart joke like:
comes an e-bike and car in a restaurant says the bar keeper to the car "U NO" :lol:
But than i was like :pancake:
by Jolly Jumper
Nov 06 2013 9:14pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Hyena's e-bike builds (now with HD video)
Replies: 3900
Views: 509221

Re: Hyena's e-bike builds (now with HD video)

when the wind blows from front they not can hear you coming from behind and get spooked and we want not shine a bad light on e-bikes. Do a little ring with your bicycle bell The problem is multifactorial really. A: Most people walking on shared paths have headphones in so won't hear you if you ring...
by Jolly Jumper
Nov 06 2013 2:36pm
Forum: E-Bike General Discussion
Topic: Need ebike stealthyness ideas
Replies: 40
Views: 2518

Re: Need ebike stealthyness ideas

Yes :mrgreen:

Buy some bionic mechanical legs wich stealthy pedal your bike instead of your real legs (no DD hub needed anymore) :mrgreen:
And put your controller and batterie in your backpack.

It would be perfectly stealth. (But why? idiotic kapitalistic laws ?=)
by Jolly Jumper
Nov 05 2013 1:45pm
Forum: General Discussion
Topic: Living in a Bicyclists Paradise‏
Replies: 25
Views: 1997

Re: Living in a Bicyclists Paradise‏

When a car can't get close to me how is it going to hit me? If feel the onus is 100% on me to avoid touching the pavement or anything else with anything other than the bottom of my flip flops. Na watch this bMjhWXF3GnM and think again. Car´s are not power and/or speed limited not in city not everyw...
by Jolly Jumper
Nov 05 2013 9:43am
Forum: General Discussion
Topic: Living in a Bicyclists Paradise‏
Replies: 25
Views: 1997

Re: Living in a Bicyclists Paradise‏

Hehe the wind is good for balance training :) Trucks have far more problems aowXoDXZfcc @Davec I hear you. I truly HATE 50cc scooters and mopeds. They drive right under your nose and are so polluting. Eyeballing electric scooters on the road tell me they are practically non existent. But that is mos...
by Jolly Jumper
Nov 04 2013 9:52pm
Forum: E-Bike Technical
Topic: RFID Keyswitch
Replies: 94
Views: 11307

Re: RFID Keyswitch

TEN 8-7211 WI 43...160VDC Ausgangsspannung 1 5VDC Ausgangsstrom 1 1600mA Anschluss THD Betriebstemperatur -40...+85°C But its costly here ~34€ but have seen it on alibaba but dont know exact price there but would be in for a group buy :mrgreen: Could also be additionaly used as a USB charger :wink: