Search found 9 matches

by apyles
Mar 01 2012 2:32pm
Forum: Battery Technology
Topic: charging prius battery modules
Replies: 17
Views: 4810

Re: charging prius battery modules

I have 5 cells in series for 36V nominal. -dV means negative change in voltage. So, this charger works by charging at a constant current until the voltage of the pack starts to decrease, i.e. the change in voltage of the pack is negative 3-5 millivolts. That means it reached its maximum. It makes s...
by apyles
Mar 01 2012 1:06pm
Forum: Battery Technology
Topic: charging prius battery modules
Replies: 17
Views: 4810

Re: charging prius battery modules

Here is a pic of my scooter with the modules already build in. They are bolted to the frame so they cant move. Sturdy rubber floormats used for isolation of the battery connectors 8) http://i44.tinypic.com/4l1yp.jpg I am planning to charge in parallel and monitor the first charges closely. So cheer...
by apyles
Mar 01 2012 1:02pm
Forum: Battery Technology
Topic: charging prius battery modules
Replies: 17
Views: 4810

Re: charging prius battery modules

My 36V Tenergy charger (discussed above) catches -dV at around 1.45V/cell. I really recommend compressing the cells, especially when charging. That is the way Toyota does it. Rjoe are you wiring 4 modules in series? Can your charger also handle a single module at a time? (Assuming 4 in series) Have...
by apyles
Feb 26 2012 9:48pm
Forum: Battery Technology
Topic: charging prius battery modules
Replies: 17
Views: 4810

Re: charging prius battery modules

Hi, This will be much better than what you build: http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXTYX6&P=7 Thanks for the recommendation. I agree 100%. Before I invest in something like this, I need to ensure that these modules are completely functional. So I think I'm stuck with my homegrown so...
by apyles
Feb 26 2012 3:38pm
Forum: Battery Technology
Topic: charging prius battery modules
Replies: 17
Views: 4810

charging prius battery modules

Hi I recently acquired a number of Prius battery modules (Gen. 2) Each module is rated at 7.2v 6.5AH (according to: http://www.endless-sphere.com/forums/viewtopic.php?f=14&t=6726 ) My post is actually a two-part question. Should I (1) throw money at it and buy a good charger, or (2) should I attempt...
by apyles
Feb 18 2012 8:57pm
Forum: E-Bike Non-hub Motor Drives
Topic: geared kona dirt jump frame SOLD
Replies: 387
Views: 43530

Re: geared kona dirt jump frame

Hi flyingmonkie, I realize you built this bike a couple of years ago. But I love how your direct chain drive here. I had a couple of questions on your drive train that I was hoping you could help me with. 1.) What type of hub are you using? 2.) How did you get both freewheels on the hub? Can you pro...
by apyles
Feb 14 2012 11:37am
Forum: E-Bike General Discussion
Topic: 1997 Lemond - rear hub options?
Replies: 7
Views: 390

Re: 1997 Lemond - rear hub options?

If it were me I'd keep the Lemond as a pedal bike and electrify something not as nice. :) Yeah good point. Well I was thinking that I could build a separate "electric" wheel. And then swap the two if I wanted to. That being said, I'm not aware of any rear hubs that allow cassettes to be used. Every...
by apyles
Feb 14 2012 10:40am
Forum: E-Bike General Discussion
Topic: 1997 Lemond - rear hub options?
Replies: 7
Views: 390

1997 Lemond - rear hub options?

I have a 1997 Lemond Alpe d' Huez road bike that I'd like to add a rear hub motor to: http://www.bikepedia.com/quickbike/BikeSpecs.aspx?Year=1997&Brand=LeMond&Model=Alpe+d%27Huez&Type=bike The bike has campagnola shifting. Ideally when I purchase a rear hub motor I'd like to add a campagnola cassett...
by apyles
Feb 12 2012 4:38pm
Forum: E-Bike Non-hub Motor Drives
Topic: Slawek's angle grinder drive
Replies: 48
Views: 16509

Re: Slawek's angle grinder drive

Hi Slawek,

I like the Angle grinder gear box idea. What model of Dewalt grinder did you use for this?

Andy