Search found 427 matches

by Racer_X
Mar 22 2014 5:34am
Forum: EBike General Discussion
Topic: Euro ebike stores
Replies: 17
Views: 956

Re: Euro ebike stores

ovlla wrote: oooh. 48v 10ah lithuim battery. and im not in norway right now. going to school in sweden
I got some ebike kits left over from a group buy. I sent you a PM.
Are you in stockholm?
by Racer_X
Mar 09 2014 12:40pm
Forum: Battery Technology
Topic: BMS Battery Alloy Shell Charger Problems
Replies: 597
Views: 58615

Re: BMS Battery Alloy Shell Charger Problems

you can use a power supply and charger together in series too if you wanna. the charger will regulate the current so it does go into current limiting hiccup mode on the power supply. then just adjust the voltage of each so the charger goes into the CV phase at the right voltage. i have done several...
by Racer_X
Mar 08 2014 5:16am
Forum: EBike General Discussion
Topic: Got ran over by a car today...
Replies: 76
Views: 5685

Re: Got ran over by a car today...

Thank GOD you did not get hurt. I slammed my head once on the concrete after a crash and had vertigo for 2 weeks. Another person I heard about in this area, hit his head and now is in a coma. He is still in a coma and now what to do with his business his homes his family. These things are serious an...
by Racer_X
Mar 07 2014 2:55pm
Forum: EBike General Discussion
Topic: What do I want, Stealth, HPC or something else?
Replies: 23
Views: 1845

Re: What do I want, Stealth, HPC or something else?

New question: motor/power, what do i aim for in general and in specific? Do i want as much power as possible out of these big hub motors (Bomber 4.5kw vs. revolution 6kw) or is there some sweetspot, I guess there must be othetwise Stealth would probably have cooked up something even more beast by n...
by Racer_X
Mar 07 2014 11:49am
Forum: Battery Technology
Topic: BMS Battery Alloy Shell Charger Problems
Replies: 597
Views: 58615

Re: BMS Battery Alloy Shell Charger Problems

now what should i do? I need 90V for my battery and there are only these crap non pfc correction chargers from BMS battery available. i know there are some better chargers on the market (eltek chargers) but they are about 1000€ as far as i could see..any suggestions? Have you considered a Mean Well...
by Racer_X
Mar 07 2014 4:31am
Forum: EBike General Discussion
Topic: What do I want, Stealth, HPC or something else?
Replies: 23
Views: 1845

Re: What do I want, Stealth, HPC or something else?

Best thing is you let your other projects wait and take the time and build it self becouse if you buy a turnkey ready bike you will find in 90% no one who can repair or service it exept your self :mrgreen: And if you want a powerfull ebike than the things geting broke are much higher and much frequ...
by Racer_X
Mar 07 2014 2:47am
Forum: EBike General Discussion
Topic: You Have $1K-$2K to build an Ebike - What do you Build?
Replies: 25
Views: 2041

Re: You Have $1K-$2K to build an Ebike - What do you Build?

The best bike to ride beside my bike would be my bike. Total cost less than 1000, Cannondale F8 MTB, 9c 9x7, Regen,ThreeSpeed Cruise. with torque plates. 12s3p or 18s2p depending on mood.Maxxis Holy Roller in the summer and Schwalbe Ice Spiker in winter. Smokes any cyclist OR e-cyclist in stockolm,...
by Racer_X
Mar 06 2014 3:42pm
Forum: EBike General Discussion
Topic: You Have $1K-$2K to build an Ebike - What do you Build?
Replies: 25
Views: 2041

Re: You Have $1K-$2K to build an Ebike - What do you Build?

The best bike to ride beside my bike would be my bike. Total cost less than 1000 Cannondale F8 MTB, 9c 9x7, Regen,ThreeSpeed Cruise. with torque plates. 12s3p or 18s2p depending on mood.Maxxis Holy Roller in the summer and Schwalbe Ice Spiker in winter. Smokes any cyclist OR e-cyclist in stockolm, ...
by Racer_X
Mar 06 2014 3:32pm
Forum: EBike General Discussion
Topic: What do I want, Stealth, HPC or something else?
Replies: 23
Views: 1845

Re: What do I want, Stealth, HPC or something else?

What is your budget? Where are you in Americas, Europe Asia ? Different places different prices different solutions.
by Racer_X
Mar 06 2014 8:04am
Forum: Battery Technology
Topic: Does charging battery to 90% Really extend battery cycle
Replies: 41
Views: 3187

Re: Does charging battery to 90% Really extend battery cycle

Limiting charge-discharge to between 3.7V and 3.9V provides ~55% capacity ... with an estimated 800% battery life! (possibly more?) Great info! I have noticed that when I charge to 3.86V = 46.4 on my 12s LiPo I have quite of bit of range with my battery packs. My 10ah can go about 6km and my 15ah c...
by Racer_X
Mar 06 2014 6:32am
Forum: Battery Technology
Topic: Does charging battery to 90% Really extend battery cycle
Replies: 41
Views: 3187

Re: Does charging battery to 90% Really extend battery cycle

Waiting till the last minuite to start recharging makes a lot of sense too. So maybe charge to 80% at most before parking overnight could work, then finish the charge while you eat breakfast. I have two LiPo bulk chargers. One charges to 90% 4.1v per cell and the other charges to storage level 60% ...
by Racer_X
Mar 06 2014 5:34am
Forum: Battery Technology
Topic: Does charging battery to 90% Really extend battery cycle
Replies: 41
Views: 3187

Re: Does charging battery to 90% Really extend battery cycle

Yes. It really does. So does never discharging below 20% or so. Many batteries will last >10x more cycles if you charge to ~80% and never discharge below ~30%. Yes that means you only get half the capacity. Subscribed to this thread waiting to hear from an experienced member on the subject and Wala...
by Racer_X
Mar 05 2014 2:13pm
Forum: EBike Technical
Topic: Broken chinese 250W PAS eBike electric issue
Replies: 14
Views: 2308

Re: Broken chinese 250W PAS eBike electric issue

ultraboy

The multi-pin connector (pin side) is connected to the hubmotor, not the battery, so that wont work!

Please assist!
I understand your dilemma, your new to this stuff. Are you in Stockholm. I have fixed a few of those chinese ebikes, I can help you check the motor, controller, PAS etc.
by Racer_X
Mar 04 2014 3:10am
Forum: EBike General Discussion
Topic: e-Moto Ridge 2.0 Battery Question
Replies: 13
Views: 1221

Re: e-Moto Ridge 2.0 Battery Question

Been there. Those factory built ebikes are equipped with speed limited controllers, no speed limiter wire to unplug. Upgrade your controller i found was the only way. Pick a controller that is a max of 18 amps, anymore and you risk damaging your geared hubmotor. Hey - while I'm here - any of you guy...
by Racer_X
Mar 03 2014 4:52pm
Forum: EBike General Discussion
Topic: Wet bike -> now 3x above current limit. Where to start?
Replies: 3
Views: 360

Re: Wet bike -> now 3x above current limit. Where to start?

Unhook all the connectors and let them dry out. Same thing has happened to me. I did what drunkskunk recommends and took it a step further, I used a blow dryer. Once dry i connected all connectors back up and it started right up. That CA might also have water damage, try to put it a dry place. If p...
by Racer_X
Feb 27 2014 2:44pm
Forum: EBike General Discussion
Topic: Unusual battery box
Replies: 5
Views: 410

Re: Unusual battery box

drsolly, Great idea and nice find. It says the outer Measurements: 11x20 x16 cms.
What is the inner measurements?
by Racer_X
Feb 19 2014 2:32am
Forum: EBike Build Threads
Topic: Lightweight Commuter Cute 100 CST
Replies: 55
Views: 16448

Re: Lightweight Commuter Cute 100 CST

athletic91, You never mentioned how you fixed the problem. I take it that it works now?
athletic91 wrote:
Hope you guys can help me out. only after 7-8 tries then i would be able to switch on properly
by Racer_X
Feb 15 2014 2:43am
Forum: Items for Sale - New
Topic: NEW BOLT ON TORQUE ARMS for IS disc caliper mnts 25$ shipped
Replies: 213
Views: 47142

Re: NEW BOLT ON TORQUE ARMS for IS disc caliper mnts 25$ shi

migueralliart, please indulge us with picture of the new prototype. :D
by Racer_X
Feb 10 2014 8:09am
Forum: EBike General Discussion
Topic: Anti Spark
Replies: 14
Views: 1318

Re: Anti Spark

Sounds cool Matt Gruber, please add some pictures when you have a working solution of you plan, with details if you don't mind. after a month my caps are still 14.8v. from 40. mine has an on/off switch, does your controller? always switch it off before disc. i'm going to put an LED across the resist...
by Racer_X
Feb 09 2014 4:04pm
Forum: EBike General Discussion
Topic: Anti Spark
Replies: 14
Views: 1318

Re: Anti Spark

Take the guess work out of it. Go to the "No Spark" Resistor calculation webpage and put in your values. voltage, charge time (how long you want to wait, I like .25 second ) Total ESC (your ebike controller) Capacitance (usually) 1000uF http://scriptasylum.com/rc_speed/nospark.html I use a...
by Racer_X
Jan 26 2014 5:20pm
Forum: EBike General Discussion
Topic: Can a visitor to Europe just rent the battery?
Replies: 13
Views: 712

Re: Can a visitor to Europe just rent the battery?

If I was going to Europe on a once-in-a-lifetime visit, I would do as dogman suggested. I would arrange for a bike shop or friendly ES member to receive a new battery, test it, and hold it until I arrive. Then...I could sell it to a local E-bike enthusiast at a reduced price. Even selling it for ha...
by Racer_X
Jan 17 2014 10:39am
Forum: EBike Non-hub Motor Drives
Topic: New Bafang Crank-Drives
Replies: 4435
Views: 786523

Re: New Bafang Crank-drives

This Bafang Crank-drives is getting more and more interesting. Looking forward to see how kepler solves this puzzle.
then need to fabricate a custom bracket to hold the switch.
subscribed
by Racer_X
Jan 16 2014 1:18pm
Forum: EBike General Discussion
Topic: 48v 10aH LifeP04 Battery Repair
Replies: 15
Views: 2252

Re: 48v 10aH LifeP04 Battery Repair

d8veh, really generous of you donating your time like that.
anyone else in my town would charge an arm and a leg.