Re: LiFePO4 Batteries
 

Darn It! Typo. 14,000. Let me edit the post above :D

Re: LiFePO4 Batteries
 

go to a "u pull it"

find a prius

extract motor?


http://www.cloudelectric.com/product...em200-d135.htm

this would be the motor to use if you are doing what i think you are doing.

Re: LiFePO4 Batteries
 

That seems like a legit motor. Also, is it advisable for me to use two motors, one controlling each side of the car? If so, that would allow easier computer control of the car. Also, I am planning to implement an autopilot routine, (in the future years), to just follow the roads straight and automatically stop and start in traffic jams. The following will probably use a camera and the stopping will be done either with a ping or a laser rangefinder.

Re: LiFePO4 Batteries
 

Hey, can someone post about how safe/unsafe these batteries are against AGM/FLA/VRLA (Lead Acid) bateries? I do not want this car that I am building be a bomb in ceratin cases!::ouch::

Re: LiFePO4 Batteries
 

Living in the middle of Arizona, a desert, I am probably unlikely to find Snowmobile Designers? :confused: :deadhorse:

Re: LiFePO4 Batteries
 

You can find them in some unlikely places (though I admit that I don't see any registered teams from anywhere south of Illinois). And remember, there's this wonderful invention called the Internet, which can help you connect with folks who actually have winter. (As a matter of fact, I remember having a couple of folks from Arizona on my Aero team--which worked in the same room as the Snowmobile team--during my final year of college in South Dakota, one of whom may have graduated from your FRC team--I can never keep 1164 and 1165 straight.)


As far as safety, AFAIK, they're pretty comparable as long as you don't do anything utterly stupid. The risk of flammability is a bit higher, but not nearly as bad as LiPOs. If you're shipping them, you have to have someone who's registered to do that, though I don't think that'll be too big of an issue if you're not shipping them. Charging is more of common sense--use the right charger, and make sure it stops when it needs to.

Re: LiFePO4 Batteries
 

There are quite a few people out there who have been building electric cars for a long time. Many of them are members of the EAA (I gave you the link in my first post in this thread). You are best to start by getting in touch with a bunch of them in your area.

Re: LiFePO4 Batteries
 

how big is this car? are we talking go kart size or like a actual car size.

assuming you construct the pack correctly, as long as you don't draw more amps than the cells "c" rating or discharge the cells below 2.8v you shouldn't have problems.

Re: LiFePO4 Batteries
 

I am thinking a little bigger than a a go-kart, but way smaller than a regular cart. that is the project, basically. that way, the car will be small enough to drive even inside a building :D!::ouch::

Re: LiFePO4 Batteries
 

Hey, before, I was looking at Howell batteries because of their price. After doing a couple hours more of research, I came upon Winston Batteries (LiFeYPO4 instead of LiFePO4). Does anyone have experience with these batteries or this manufacturer?

Also, where can I buy these for the best possible price?