Anyone tried the new LiFePO4 SubC batteries in a 1:12 car? I'm going in to make three packs for my 1:12/1:10 pan cars just to bash around and compare.

I found these and I think, they are a good start for what is to come in the future.

http://rcbuy.vstore.ca/product_info..../cName/lifepo4

First off I have never run 12th scale and don't know anything about them. I am looking at possibly getting one for the Nats in June. I found this car in the for sale forum and it seems like a good deal especially with possibly five good packs. My question is, is this a current car and is this something that would be good for outdoor asphalt racing.

http://www.rctech.net/forum/showthread.php?t=216967

thanks

That is not a very good idea the cells are 1000mah and that is way too low to run a electric rc car for very long
that is a very good car it will be good for asphalt and carpet scince it is a tbar car and not a link car and 5 good packs is awesome for 200 bucks the servo is good and for the car if you ar running on a small carpet track us black fronts and white or pink rears with a 075 t plate silver center springs and 10 degree reactor blocks with caster shims 1 in front and 1 in rear hope this helps

The cells are 1000mah, but to equal the performance of 4-cell nimh pack 4-LifePO4 cells would be wired in a 2S2P configuration. Making them 2000Mah at 6.4V. Since LiFePO4 cells perform better under load than NiMH cells, the 2000mah Capacity equals a the performance to a 3300mah battery in heavy use.
Since these cells have a fairly flat discharge up to 2.5 volts then dump sharply a users can still have punch to the very end of the race.

To give you an idea of how much power 2000mah is, that would be a constant 15amp load for 8min. Sounds like more than enough capacity for practice heats or even 5min races.

1. No, since these wouldn't be legal for racing by any sanctioning body anywhere on Earth.

2. I wouldn't purchase packs from any company that had pictures of shoddy battery pack construction on their site, never mind the pictures taken on a dirty stove instead of on a more professional looking piece of seamless.

I've pm'd you some thoughts on this package/price.

The chassis itself should be a very good choice. As far as the battery packs, note that the offering DOES NOT say they're "good", it does state that he can't guarantee the performance but that they should be "ok". My own experience is that the 4200's do not do well going to zero, and it sounds like these have been "zero" for a while. Were I buying this package I would assign ZERO value to those packs, plan on them being junk, and be delighted if I ended up with a couple decent practice packs out of them. The IB4200's require a lot of maintenance/hand-holding if they're to remain decent any period of time. They DO NOT like sitting unused/uncharged, have little tollerance for going completely flat/dead-shorting, and have a fairly rapid self-discharge characteristic that sees them going flat MUCH more quickly than other batteries.

ditto with Scottrick on this one. If those IB 4200 packs have been dead shorted they are probably useless. Thumbs up on the car, though. Just don't factor the cells in on the price.

The contradictions here are as plentiful as they are astonishing. "equal to the performance of a 4-cell nimh pack" followed by "2000mah at 6.4V". Hmmm...once upon a time we had 2000mah sub-C's, but they've gone the way of the Dodo bird, and I WISH my 4-cell packs were nominally rated 6.4v.

The best one, though, is "enough capacity...5 minute races". That car is going to be ballistically fast (i.e. almost impossible to drive--there's a reason 6-cell 1/12 died) but drop to last place as it sits by the track for the last three minutes OF AN EIGHT MINUTE HEAT.

I have my Team CRC Gen-X for sale. It is listed here: http://www.rctech.net/forum/showthread.php?p=4130373#post4130373
I have a couple of Power Push IB-4200 World packs that I'll include. I am currently using them each week in club racing. Charged with a Spintec ICC without any problems. I have more pictures that I'll email to anyone interested.
djb

Here's a picture of my GenX with FePO4 cells. 2300mAh with 6V. Car weight is 700gr with Brushed Setup. The cells can be charged in less than 30 min
Probably I try it this evening.

Let us know how it goes! handling difference and runtime

Ok, first roullout is done. I drove 8min 30s with an old 12t brushed motor, but I was not (yet) as fast as some Corallys with Lipos and Nimhs. Handling was nearly the same as normal.

Hi Chaps,

Can someone please let me know what size the diff balls are in the RC12l3?

Thanks Ahead
Dan

1/8"

FOR SALE
A CTX-C Cell Master Rheinhard Version Charger/Discharger, the charger has only been used four times and is in great condition, it has just been sitting around at my house for months. There are no scratches on the charger. I am asking 75.00 shipped. If you have any questions or would like pictures please email me at [email protected]. I will only ship to the lower 48 states and I only accept Paypal.

Thanks