R/C Tech Forums

R/C Tech Forums (https://www.rctech.net/forum/)
-   Radio and Electronics (https://www.rctech.net/forum/radio-electronics-137/)
-   -   Is 20c enough? (https://www.rctech.net/forum/radio-electronics/271242-20c-enough.html)

DANE_TRAIN 01-28-2009 12:58 PM

Is 20c enough?
 
Is a 20c lipo enough for mod classes? What is 20c? Is 25c better?

lol, what a lipo newb

trdsupra88 01-28-2009 01:14 PM

the c rating is the discharge rate...20c is fine for tenth scale use...I use 20c for my mod(3.5r) motors in 2wd truck and the batteries dont even get warm...25c is better but in tenth scale 20c is fine...

RobbieT 01-28-2009 01:16 PM


Originally Posted by DANE_TRAIN (Post 5354990)
Is a 20c lipo enough for mod classes? What is 20c? Is 25c better?

lol, what a lipo newb

from everything i have read and my own experiences 20c is a bare minimum

rearviewmirror 01-28-2009 01:16 PM

I raced 2wd truck mod w/ a 15C battery and it's more than enough. I've recently bought SMC 28C batteries though to give my Slash more punch. 20C is more than enough for most if not all 1/10 applications.

LIVipers 01-28-2009 01:42 PM

I run the 3800 30C Orion Battery and I love it. Great power and long runtimes.

DANE_TRAIN 01-28-2009 02:09 PM

So a 28c lipo has more "punch" than a 20c lipo?

KZ 250 01-28-2009 02:16 PM


Originally Posted by LIVipers (Post 5355199)
I run the 3800 30C Orion Battery and I love it. Great power and long runtimes.

So give or take, how long does the 3800 orion battery last for run time?

JeromeK99 01-28-2009 02:48 PM

I run an Orion 3200 20c pack in my XXX-4 mod... It is plenty fine! I have run everything from a 3.5bl and 9t brushed single... I have tried other higher C rating LiPos and find NO difference in power or handling.

I think it comes down to the quality of the packs. Most of the guys at my track that complain about lower C ratings are using cheaper packs. Nobody seems to complain at all about their Orion/Kokam packs.

I think you get what you pay for.


Jerome :tire::tire:

not home 01-28-2009 03:00 PM


Originally Posted by LIVipers (Post 5355199)
I run the 3800 30C Orion Battery and I love it. Great power and long runtimes.

this is the best ever

not home 01-28-2009 03:04 PM


Originally Posted by KZ 250 (Post 5355361)
So give or take, how long does the 3800 orion battery last for run time?

from my 4900 25c compared to my 3800 30c i think there is a few minute difference between the two. i havent looked at the clock before and after but the runtime is noticeable. the 3800 is lighter and i think faster too. with a 17.5 motor i could tell a world of a difference because im clearing jumps a foot farther with less of a running start.

LIVipers 01-28-2009 03:05 PM


Originally Posted by not home (Post 5355573)
this is the best ever

I know, I have 2 of them and I don't think I will ever have to buy another pack.:tire:

UltegraSTI 01-28-2009 04:19 PM

its all placebo to those of us who are not good enuff to be paid to do it.

R

Drifting101 01-28-2009 07:37 PM


Originally Posted by not home (Post 5355596)
from my 4900 25c compared to my 3800 30c i think there is a few minute difference between the two. i havent looked at the clock before and after but the runtime is noticeable. the 3800 is lighter and i think faster too. with a 17.5 motor i could tell a world of a difference because im clearing jumps a foot farther with less of a running start.

You said it. The 3800 is lighter making it feel faster but it is not.0

Do I need to say it again


Many people think that, but it is wrong; the C rating is used as a reference to how many amps a battery can supply i.e 5000mah 20c can deliver about 100 amps or a 3800 35c can deliver 133 amps ;)

So unless you are running a super high amp drawing car the C rating is just to bring in the money :nod:

rearviewmirror 01-28-2009 08:51 PM


Originally Posted by Drifting101 (Post 5356974)
You said it. The 3800 is lighter making it feel faster but it is not.0

Do I need to say it again

It gets old explaining that higher C ratings does not mean it can push more, it means the system can draw more from the battery. Just like a car battery. Your car doesn't PUSH 675 amps to the starter, the starter draws that amperage. If batteries "pushed" amps electrical systems would be a whole lot more complex. 1/8 scale brushless system draw heaps of current, 1/10 not nearly as much. You'll know if you're drawing more than your batteries can deliver because they'll either get really hot or go poof.. or both. :D Your ESC could also shutdown if it cannot get enough current, not really a problem often but it can happen. Get the highest C rating you can afford, as higher C ratings also means higher quality lipo cells (usually, not always).

Drifting101 01-28-2009 08:57 PM


Originally Posted by rearviewmirror (Post 5357326)
It gets old explaining that higher C ratings does not mean it can push more.......

Why dont the make it a sticky cause I am forever having to explain it


All times are GMT -7. It is currently 10:21 AM.

Powered By: vBulletin v3.9.3.9 Patch Level 3
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.