Recent content by jjackstone

Warren, There are a number of inexpensive 24V charge controllers on the market. Here are a couple links. http://www.virtualvillage.com/6a-12v-24v-solar-panel-charge-regulator-controller-007808-026.html?utm_source=googlebase&utm_medium=shcomp...

Hey Gary, Have you tried McMaster-Carr for the heat shrink? They seem to have a good selection. JJ

Don't know if these are the actual units, but there are some very large batteries being tested in a few municipalities for peak loading scenarios. You know, summertime, 3000 degrees, all the air conditioners west of the Mississippi running. JJ

I also use WHrs for energy description...but the AmpHour rating is much better for charge/discharge characteristics. JJ

I ran across this info a while back. Might be what you're looking for....just not cheap. "So, if you wanted to use unmodified DeWalt/A123 batteries with their original charger, you could purchase part #636747-00 (wiring harness, $39.90) and part #630141-00 (tool casing with battery latch...

To Olivier, While I agree that PML's numbers seem unrealistic, there are at least a couple of other companies attempting to use their motors. See these links... http://www.lightningcarcompany.com/ http://www.zapworld.com/electric-vehicles I was looking into the motors for an electric...

I think Ford limited it to 75mph. Probably has a Siemens motor in it. As I recall, around a 300V system. JJ

Dean, Also realize that you never truly have 72V with these packs in series. Almost immediately after you place any load on them, the voltage drops to about 66V. When I run my fairly heavy 2-pac bike, even at five amps my sag is down to 62-63 volts. With more in parallel you won't sag nearly as...

I leave my batteries charging for as long as possible which is usually no more than four hours each during the day. Ride to work. Charge battery A til noon. Charge battery B til four. Ride home. Charge battery A 2 to 3 hrs. Charge battery B overnight. Rotate A and B every couple weeks. I have a...

Ok, way to start the week. Rained on me this morning(slight, but none was in the forecast). Picked up a nice sliver of metal on the way home. Didn't go flat til I pulled the metal out(at home). GG: Like your packs. I had an occasional problem with one cell getting out of range also. I just...

Hi Doc, Thanks for the welcome. Let's see if I can answer some of your questions. 1. One is passing thru a 15A fuse and the next one have NO fuse.. but it is controlled with a 60A mosfet. in your case, you seems to directly use the NEG connector that pass thru the 15A fuse right? I am using...

Hi folks, This is my first post. Been reading the site off and on for a while now and figured I'd throw in a couple cents. I built my 72(66)V pack about a year ago. Running a Crystalyte 5305 with a 20A controller. Purposely limited the controller ouput. So I ran two packs for about 8 months...