Solar Power

[theone&only....]

well i was looking at some bit char-g sites and i found a guy that made one that runs off of solar power. then i amediatly thought about an epoch. i found these sites that sell cool solar stuff.
the first
http://www.solarbotics.com/main.php
anf the 2nd
http://www.solar-world.com/PowerFilm.htm

there, for some reasson no matter how many times i tried copieing the sloar-world site when i pasted it kept put down solarbotics.com

well they have solar film that is flexible, so i was thinking on like make a cool solar body type thing like the reall ones and putting that solar stuff on it. then i the first site has some good capasiters that you could use for power.

does this seem like a good idea. i might try this when i get my epoch in the mail.

[theone&only....]

ok, on solarbotics.com i found these capasiters that look like they would work.
http://www.solarbotics.com/products/...egoryzq34=true

and this sloar cell wold be perfact. S-MPT4.8-75 its on the solarworld site link i posted above.

[Azimov]

Don't think it will work. The solar cell you listed doesn't have enough current. Your best bet is a solar array made from the super space cells sold at solar-world. Very expensive, but the only way to go. Check bit science and you'll see my solar Zip (solar micro 3) that uses these solar cells. Also, the capacitor you listed won't work either. You need at least 1Farad of storage current and I'd probably go higher than that. You seem to using voltage as a guide to your component selections, but you aren't considering current. These Epochs are power hungry beasts. I don't remember how many batteries they use, but you should consider that each battery contains around 800-1000mA. That's one full Amp! The solar cell you listed is only 50mA and that's it's optimal output in full noon sun.

[theone&only....]

the epoch batteries hold 150mah. im just going to put a li-poly batterie in it and it would be good. a lot faster and longewr run times.

[Azimov]

the epoch batteries hold 150mah

Yup, they sure do. I wrote the previous post before I owned an Epoch. So, we're talking 4.5 VDC @ 150 mA. Your solar array must produce this constantly for the car to operate. Since solar cells are very inefficient, you'll need to bump those numbers a bit in order to get good performance in lesser light conditions. I'd estimate 5.5 @ 250mA at least. This is optimum output and the cells won't produce this all the time. This allows for enough power to keep the car going in lesser light. Selection of cells is the important factor here. You can go crystaline, but they are low voltage high current. Which means you would need say 10 cells rated @ .5VDC @ 250mA hooked in series to get the voltage up to what you need. Or, you can go Amorphous cells and use about 5 or 6 if they are in the 5-6VDC @ 50mA hooked in parallel to get the current up.
So, you see the problem. The solar array must be huge in order to operate the car efficiently. The space cells I mentioned in the previous post are still the best bet for power versus array size. !0 of them would make an array roughly 6 inches sguare, or can be made into a rectangle if configured right. This is much larger than the chassis however. It can be done with a custom body and maybe the speed racer tires and rims to widen the stance of the chassis.
The solar application works better on Zips because they require much less power to operate. The SEs are another matter and put you back to the problems with the Epoch. Even worse if you consider the size of an SE versus the array size to power it.

[theone&only....]

like i said in the post before yours. im just going to put some li-poly battseries in it. i dont mean to be rude. but it seems more work than i want to be able to run on the light. i also want to accidently damage a cell on accident since they are so expenzive.
im going to get some 145mah li-poly cell and wire them in parrallel to make 290 mah. a li-poly cell in .1 v more than the 3 cell nimh batterie thats in it now. but also when undser a load the volteg in a nimh batteries drop a lot. but with a li-poly the volteg doesnt dropp as much. so theres an advant4eg there. so fully charged the lipoly is 4.2volts. but will onlt drop to around 4-4.1 volts under a load. but the nimh will be 1.8v fully charge i think and under a load it will drop to around 1.2-1.3. so you see the diffrence between the 2 batts. the li-poly will offer better performance than the nimh without the higher volteg need to get these thing to go fast. you alos get twice the runs times.

[Azimov]

like i said in the post before yours. im just going to put some li-poly battseries in it. i dont mean to be rude. but it seems more work than i want to be able to run on the light.

No problem, and I knew that. Just thought someone else may be looking for the info someday. "Sides, you may want to try something different than everyone else too eventually .

[theone&only....]

yea...who has put a li-poly batterie in their epoch. im a little low on money right now so i cant..but i want to.