Search found 169 matches

by mi7d1
Aug 07 2010 1:07pm
Forum: General Discussion
Topic: DIY electric Datsun does quarter mile in 10 seconds
Replies: 36
Views: 4545

Re: DIY electric Datsun does quarter mile in 10 seconds

The White Zombie is street legal. http://www.plasmaboyracing.com/whitezombie.php Favorite quotes from the above link: 192 Dow/Kokam lithium polymer cells contained in 12, 29.6V clear Lexan modules. Battery pack at 355V, capable of 2,400 amps discharges, and stores 22.7 kWh of energy. Thanks to Dow/K...
by mi7d1
Mar 13 2009 12:01am
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

My charger says:

100-240V~50/60Hz 105W
DC 36V 2A
3.6V

I had no problems using it. Perhaps it's possible that the OP misread the charger :?:
by mi7d1
Mar 07 2009 2:52pm
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

I have purchased two 36V 20Ah packs. The first pack that I put on my Anderson/Sermos connectors then proceeded to charge the pack. No problems. Red light on the charger came on then after a hour or so it started to balance the pack. The charge indicator light would cycle red and green. Two hours lat...
by mi7d1
Mar 06 2009 6:16pm
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

Recumbent with 48 V Brushed hub motor Bike was originally approx 45#.... added 4 -12ah SLA batteries @ 8.5# ea.=34# Hub motor in tri spoke cast rim + 15.5# Weight of bike now is 93# (over double the original weight) 180# rider.... Total weight - approx 273# Distance traveled 10.036 miles Elapsed ti...
by mi7d1
Mar 05 2009 5:37am
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

yes, charge and discharge through the same + and - leads. I've put two Anderson PP45's on on each. For the positive that's one on each red wire. For the negative it was one connector for a pair of black wires each. Those PP45's can then be combined into a single PP75 should high current discharge b...
by mi7d1
Mar 01 2009 10:26pm
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

As I was quoted it is true that I said I was disappointed in the wrapping. An yet on the survey I said 3 for the battery themselves. Sure the wrapping around the packs was a surprise but would I have know or cared if they were in a case. Which is it a 3=meh... or disappointed which might be closer t...
by mi7d1
Mar 01 2009 12:27pm
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

the one thing more than anything that slowed it all down was 45 people making 50 changes to their initial orders. It was driving Victoria up the wall. No names but an example was one chap ordered 3 packs of 48V X 20Ah, changed to 5 packs, then to 5 of the 48V X 10Ah and then down to 5 of the 36V X ...
by mi7d1
Mar 01 2009 11:00am
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

Perhaps more of the group-purchase participants will be kind enough to provide some satisfaction data... <survey moved below to answer> Survey participants should be only group-buy participants, please. Naturally, the price, performance and support opinions may shift over time; participants should ...
by mi7d1
Feb 28 2009 8:33am
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

One of the group purchaser, Eric has a web page with some photos. I haven't taken any of mine yet. His photos are better than what I 'd have right now as he has fully unwrapped a pack to look inside the paper and tape packaging. Since the photos aren't mine I'm going to just post the link to his si...
by mi7d1
Feb 28 2009 5:43am
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

One of the group purchaser, Eric has a web page with some photos. I haven't taken any of mine yet. His photos are better than what I 'd have right now as he has fully unwrapped a pack to look inside the paper and tape packaging. Since the photos aren't mine I'm going to just post the link to his sig...
by mi7d1
Feb 27 2009 8:45pm
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

Headway packs are arriving now. My two 36V 20Ah packs came today and several others have posted online that theirs also arrived.
by mi7d1
Feb 22 2009 4:52pm
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

Hey Bill Ponder this. Why would Headway need to know the dimensions of the Cases when it was the dimensions of their own battery packs that would dictate the Case dimensions----Duh I was thinking the same thing after I posted and had considered going back to do an edit. In the end I decided not to,...
by mi7d1
Feb 22 2009 3:27pm
Forum: Battery Technology
Topic: Headway Group Purchase
Replies: 303
Views: 23264

Re: Headway Group Purchase

Well well not happy in the Whoopee sense but I'd rather it is 45 unusable cases over 45 fried BMS boards or 45 Chargers that burst into flames anyday. +1 I've watched group purchases before but this was the first one I've partaken in. It hasn't been easy but I can only imagine the frustration that ...
by mi7d1
Feb 14 2009 6:55pm
Forum: E-Bike General Discussion
Topic: Clarification on BMC/PUMA
Replies: 48
Views: 8097

Re: Clarification on BMC/PUMA

Perhaps not without aerodynamic benifits, but I know of a fared and socked Easy Racer that averaged over 35 mph with an Ecospeed drive system at last years ePower Challenge in Portland, Oregon. So sweet to see a cyclist going 40 mph with only a 48volt battery, thanks for the stats and pictures. I h...
by mi7d1
Feb 14 2009 8:41am
Forum: E-Bike General Discussion
Topic: Clarification on BMC/PUMA
Replies: 48
Views: 8097

Re: Clarification on BMC/PUMA

OH and Leamcorp, your not going to go 35mph with a 48V set-up, the wind will hold you back. Unless your talking freewheel speed off the ground test. Perhaps not without aerodynamic benifits, but I know of a fared and socked Easy Racer that averaged over 35 mph with an Ecospeed drive system at last ...
by mi7d1
Jan 20 2009 5:16am
Forum: E-Bike General Discussion
Topic: Murphys law and the Giant BMC build
Replies: 29
Views: 4517

Re: Murphys law and the Giant BMC build

Mark_A_W wrote:C I almost cried reading this thread, it's sad to see the motor bent and broken like that.
Believe me, you're not the only one. There has been much work going on behind the scene to fix this unfortunate situation.

Thanks for the update biohazardman.
by mi7d1
Jan 08 2009 6:24am
Forum: E-Bike Technical
Topic: Aero e-bike concept
Replies: 35
Views: 7956

Re: Aero e-bike concept

BugE looks great! Never saw it before. I still think they compromised too much for convenience :) I want something that looks like a rocket, no creature comforts for me :twisted: I know this is an old thread but when I read your post about the BugE I was sure you haven't seen it from the top lookin...
by mi7d1
Dec 26 2008 9:44pm
Forum: E-Bike Technical
Topic: I stripped the threads on my axle... now what?
Replies: 16
Views: 3332

Re: I stripped the threads on my axle... now what?

I'm hopping that Justin will get some rear axles in soon. As of yesterday they have rear axles in stock, but not fronts. Apparently Justin even returns emails at 3:30AM Christmas night. I took a long ride today, and everything is still snug. But I may just convert it to a rear axle should anything ...
by mi7d1
Dec 25 2008 10:33pm
Forum: E-Bike Technical
Topic: I stripped the threads on my axle... now what?
Replies: 16
Views: 3332

Re: I stripped the threads on my axle... now what?

I picked up some nyloc M12x 1.25 locking nuts at Ace Hardware. Perhaps you could also find some coupler nuts. The coupler nuts being much longer than regular nuts would have much more thread to bite into. On my 406 motor one side of the axle is stripped. What I did, I'm in no way recommending but it...
by mi7d1
Dec 25 2008 6:45pm
Forum: E-Bike Technical
Topic: I stripped the threads on my axle... now what?
Replies: 16
Views: 3332

Re: I stripped the threads on my axle... now what?

Thanks to Dennis who notified me of this thread, I can also offer my response. I had an axle swap done on two of my motors. I had a 406 front wheel and a 408 rear wheel. I wanted a 406 rear wheel motor for my velomobile. After an email conformation with Justin to confirm they could be pressed out, a...
by mi7d1
Nov 21 2008 10:24pm
Forum: E-Bike General Discussion
Topic: Murphys law and the Giant BMC build
Replies: 29
Views: 4517

Re: Murphys law and the Giant BMC build

Wow, I feel for you. Dennis gave me and the WAW a ride home (thanks) and we were talking about how much damage your motor falling on the ground received. I was going to lace in a new offset Crystalyte hub that I purchased used and damaged several months back. The previous owner had dropped it and br...
by mi7d1
Nov 11 2008 1:07pm
Forum: E-Bike General Discussion
Topic: Extreme efficiency?
Replies: 54
Views: 4368

Re: Extreme efficiency?

Thanks for posting those pics of the Eracer, it really is a masterpiece. He clicked off a conservative 100+ MPH at Bonneville last month. He could've gone faster but was concerned about frying his motor. Plus he had an 80MPH "episode" on an earlier run where he lost control/traction. When you met M...
by mi7d1
Nov 11 2008 12:18am
Forum: E-Bike General Discussion
Topic: Extreme efficiency?
Replies: 54
Views: 4368

Re: Extreme efficiency?

Just an FYI: This is from my good friend Michael Lewis who recently set the 1 hr. record for Electrathon. Rob: Are you logged into the blog? You can tell them that its now 58 miles, which used 960 w/hrs, or 16.55 wh/hr/mile. I wonder if there is a measure of watt hours per mile per hour? Now we hav...
by mi7d1
Nov 05 2008 2:30pm
Forum: E-Bike General Discussion
Topic: Building a recumbent bike
Replies: 34
Views: 25907

Re: Building a recumbent bike

<snip> Just a few current records held by pedal powered recumbents. 1 hr. unfaired - 29 miles. 1 hr. faired - 53 + miles (on a 70# faired Varna, at the Nissan test track in Az, warm!!), top speed - 83 mph, again a 70# Varna using a 5 mile run in to a 200 yd. speed trap, done twice into wind, with w...
by mi7d1
Nov 04 2008 12:07pm
Forum: E-Bike General Discussion
Topic: Extreme efficiency?
Replies: 54
Views: 4368

Re: Extreme efficiency?

Matt, If you system were set up to do say 30mph, as I understand if it were run slower than the efficiency would be lower. Could it be run faster than the 30mph or would the motor heat up from too much. What I'm trying to understand is in setting goals for your system setup does one aim for the midd...