hondafixer

iTrader: (27)

I currently run a 17.5 short course truck with a 30c lipo. can u feel any difference in running a higher C rated battery, like a 50 or even 60c?

FTSC10

iTrader: (27)

You're going to get all of the lipo cheerleaders to say they can tell the difference...


But 99% cannot, they buy a "higher" c battery, and its a placebo effect, they paid for more, so they think it works better.


Im not going to say some batteries arent better or worse then others...

Ive ran all sorts of batteries in my rigs, and honestly, aside from a few just being crappy quality, and puffing..ive never noticed a difference

I firmly beleive the C rating stuff is all BS, i run 5000mah 20c turnigys in my 90mph sc8e...and havent had a single issue! there is ZERO difference in topend, or rate of acceleration with other batteries having c ratings triple!

hondafixer

iTrader: (27)

thank u...that pretty much anwsered it...

FTSC10

iTrader: (27)

http://www.youtube.com/watch?v=CKqLwoaJiSY

theres a small vid for ya, all on low gearing,small onroad tires...and some lowly little 20c TURNIGY batteries....

hondafixer

iTrader: (27)

lol..that sucks only running 72mph (jk)

Duster_360

iTrader: (21)

The race guys can see the diff in lap times with the higher C lipos....or so they tell me.

Sam-E

iTrader: (3)

There is no international standard for C ratings, some companies quote the burst rating and others the constant current. For the most part, C ratings fall in the clever marketing section, but they are of value up to a degree. What I mean by this is, once the motor cannot pull anymore current at the supplied voltage any C ratings above this current value means nothing.

Then there is temperature, some say a warmer pack supplies more punch, so a lower C rating battery can feel punchier then a higher one. The beauty of LIPO racing is the playing field is much more leveled than with NiMh, I would not worry to much about C ratings but I would buy from reputable sources.

my 2c.

JR007

The only difference in C rating I notice is in my wallet!

snapplane

I personally think it depends on what you are running. For my sc truck on a 10.5 I cant tell any difference in a 25C and 50C. I think the only time it starts to matter is in high demand applications, such as 4wd sc where the batteries will start to get hot if you run a low C rating battery. If you just want batteries for you 17.5 I would just stick with 30C.

racer1812

iTrader: (31)

I say there is a difference, weather or not you will notice all depends.

FTSC10, maybe that makes me a 1% er'...I will agree that the average guy may not be able to tell but I'm not sure it's 99%

pavmentsurfer

iTrader: (83)

Ive been following some threads on a different forum where a member is data logging a number of different ESC/Motor combinations in the same vehicle. He has found that while 20C (assuming it IS a TRUE 20C... which many are not) is more than enough for general use in systems pulling around 100amps, high current systems CAN pull up to 160/170 amps.

If the system is attempting to pull 160 amps and you have batteries that are rated to supply only 100 amps its easy to see how the actual mathematics of it say this is not enough and both the drive and the batteries will be noticing negative effects. In a situation where you system is pulling 160 amps you WILL notice a difference moving to a battery that can supply it.

I own a stampede 4X4 and was running an MMP/2400 SCT combo in it on 20C 5000mah Venom 2S packs. It was fine... performed well. But, I moved to a 30C 6000mah 2S SPC pack (who's C rating I trust implicitly to be true) and I noticed quite a big difference in how the truck felt. Same gearing, same tires, same everything... just a different pack. Both were essentially brand new packs. I went back and forth between the 2 for about 10 days before i finally just got rid of the 20C packs.

Now in my stampede 2X4 ive done the same comparison. Run a 20C and a 30C pack, back to back, back and forth and I cant tell a difference at all, other than on the initial bottom end punch and its so marginal its not worth talking about. The traxxas VXL system is known to pull around 100amps in a 2X4 truck, the MMP/2400 SCT system is known to pull upwards of 160amp (data logged, not estimated) so you can see why im noticing the difference in one and not the other.

FTSC10

iTrader: (27)

i cant wait for this C rating BS to finally be put to rest...

heres something for you all to ponder...

I have disassembled turnigy batts,smc batts, and a pair of thunderpowers to repair/check solder joints...

for one the turnigys were the same exact cells, same exact style/size of connection soldering and hookup, these ranged from 20-40c...

the smc's were no different, nor were the thunderpowers.

datalogs have shown my sc8e to yank almost 190 amps{186 to be exact} all from 20c turnigys

That said, of course everyone on the internet is going to claim THEY are the one who can tell the difference, id put money down, that given a true scientific comparision, with the only variables being the battery pack, a HUGE half of the majority wouldnt know a bit of difference, funny thing is, ive seen this proven at the track.

MasiisaM

iTrader: (1)

Indoor clay/high grip? Hell Yes, I can tell the difference between the 50C Thunder Power and my 30C Turnigys in both the 1/8 scale and SC.

Could it be the c rating? I don’t know.. all I know is my TP's are worth about 2.5-3 seconds per lap on a 20-25 sec track.

Outdoor/low grip? No difference in LT’s.

FTSC10

iTrader: (27)

3 seconds per lap HAHAHAHAH!

MasiisaM

iTrader: (1)

I don't get it...

Edit: Now i get it your the guy that pulls stuff apart..wastes nothing but time and doesn't have the ability to check LT's because your driving is inconstant at best ..hummm.. now that is funny..