RC Drag Battery Test: 50C vs 100C | POVWAY vs Dynamite
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- čas přidán 26. 08. 2024
- Once clear conclusion from this test: batteries matter!
Unlike in some other forms of RC where you can get away with sub-par batteries....RC drag is NOT one of those situations if you really want to get the most out of your car.
I test the Dynamite Reaction 50C battery (amzn.to/32WqER9) to the POVWAY 100C battery (amzn.to/3eJqwKk).
I was surprised by the results! Were you?
Please let me know down in the comments which batteries you prefer for that big acceleration!
GNSS performance analyzer: amzn.to/3sXSuY5
DR10 drag car: amzn.to/2QIRWIr
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![☀ Аккумы за 52$ vs 17$ или 200C vs 100C. Обзор и тесты [ReadyEdi 200C Lipos]](http://i.ytimg.com/vi/HtLrCe1kZAc/mqdefault.jpg)
![☀ Аккумы за 52$ vs 17$ или 200C vs 100C. Обзор и тесты [ReadyEdi 200C Lipos]](/img/tr.png)
Awesome video and Rc brother
Excellent review on batteries
Have a good one my friend and stay safe
👍🥶👍
Thanks for the nice comment!
I have a 3s 25c on my rc car and it’s broken so many parts can’t imagine a 50c thanks for the video 🙏
Unfortunately, not all c-ratings can really be compared.
Just my opinion but the 100c did it’s job and maxed out the motors rpm faster got to peak power sooner that why the lower mph with a better time 🤔if you gear up two teeth on the 100c it will be faster 💪just my opinion tho looking at the grafics 🙏cool video appreciate the video 👍
Interesting. I'll double check that.
If you are right, my whole video is junk!
@@RoadsideRC no the video shows Apple to Apple it’s a good video for sure that’s what testing is 💯💯🙏🙏
Great video man I need to get a drag car hey I hope you guys have a great weekend roadside RC rocks
Thanks Bob!
super run 😍👍
Thank you!
Are you running the slipper? A loose clutch will make those plateaued acceleration lines. I've seen it on several occasions. Generally speaking, you'll know if the tires start spinning mid run. It usually ends with the walk of shame to go put the car back on its wheels
Thanks for the tip. Yes, I do have a slipper, but it is rather tight. I'll double check.
@@RoadsideRC Maybe there is some contamination causing it to slip? I run my DR with stock electronics at around 2 turns out. Poor traction or cold days, around 2 3/4 out. When tuning my Slash with a Hobbywing XR10 Pro 160, I used to use slipper to go straight until I understood ESC tuning better. When using the slipper, the Gnss graphs looked pretty much identical to what you have. G force plateaus in a dead straight line even though speed is still increasing. I have only ever seen something so pronounced when the clutch is slipping.
Interested content thanks for sharing stay safe greetings from amsterdam New friend
Thank you!
Bought a spectrum 30c 2s 5000 yesterday and was wondering in how far it compares to the same spectrum 50c and 100c. Maybe the 100c battery will just last longer when used for general bashing?
C-rating doesn't have a correlation to time/duration.
If you are using it for general bashing, you may not find any power difference with a higher c-rating, but when used in a higher draw usage - the difference will show up.
@@RoadsideRC In meant those higher c batteries would maybe degrade less fast as they are not used to their full potential.
I wish there was a way to check C rating. They can put any # they want on a label.
Agree 100%!
Man that thing is fast
Thanks!
What rc is that? A slash
Nope! It is the Team Associated DR10
The higher C rate for your application only reduces voltage sag which gives a marginal boost to wattage. To make the full use of a higher C rate battery you have to have a motor and controller that can take advantage of the higher current discharge potential.
Voltage sag per cell is a function of the C rate of the battery plus the amp hour capacity plus the amount of current discharge. For a scientific equation, here you go.
You will get 0.6v of voltage sag per cell for every 300A of discharge for a 100C 4.4Ah cell.
You using 2S modules.
Let's assume you did 200Amps (since you did a 50C test) and let's assume your 4Ah batteries are 4.4 Ah to make the calculation easier.
Not factoring in the c rate chemistry change and not factoring in battery heat I estimate you will get 0.8v of voltage sag per module at 200A of discharge.
Let's say your batteries voltage sagged to 7.6v or so from a near full battery charge 8.4 volts.
7.6 x 200A = 1520watts peak.
The 50C battery cannot sustain 200A discharge indefinitely because the current discharge limit changes based on SOC so realistically the 50C has to be outputing less than 200A as the SOC goes down.
So let's say you put 150A on the 50C.
7.8v x 150A = 1170 watts
In comparison to the 100C that will voltage sag less.
8.235v x 150A = 1235 watts.
So these are absolutely minuscule differences in performance if your motor and controller is capping you at 150A. On the street it would be almost impossible to measure these small differences in wattage in terms of ET.
Let's imagine you actually had a motor that can do 300amps. In comparison
50C module at 150A test
7.8 x 150= 1170 watts
100C module at 300A test
7.2 x 300 =2160 watts
Also, the 100C batteries are inherently heavier than 50C batteries. So the car would basically get no performance benefit from a 100C battery if the motor is bottleknecked below 200A. The extra weight of the 100C battery would make the RC car go slower.
Play with the slipper too
I need to! I was keeping it the same for across both of these batteries.
4000mah/50c has 200a potential, I doubt your motor is asking for that, so going to a 4000/100 that has 400a potential wont help.
I see your logic - but how does that explain the results from the video?
@@RoadsideRC If a motor is trying to draw under the 200a, then either battery is capable. So a battery that can provide more doesn’t really do anything.
@@Rlambertnorcal Yes. I understand that.
How does that explain the results from the video?
I am 100% not arguing with you - but if I was only pulling a low amp draw, then both batteries should have had the same result.
@@RoadsideRC I believe the main conclusion was that the 100c must not have been really 100c because it didn’t make the motor faster. No? Maybe the speed/acceleration varied some but overall not much faster right? maybe I missed it all together…my only point was that if both batteries are providing adequate amperage then the motor “speed” would not change. So going to a larger C battery isn’t going to make it faster if the lower C is adequate. Sorry if I missed the point, maybe I should rewatch🥴
You hot lap the Esc and motor is not good and get some better tires would help out big time too like some reaction and fix the front end travel to Get a Gens Redline lipo 5100 or 6100 130-C you will get in the 2 second range easy
Tires are on their way!
I have a different battery coming, but need to get one of those Redlines.
Can you talk more about the front end travel fix?
Thanks for the tips!
Hi. Top
Thanks!
Running cheap batteries will bite you in the end..... you can't be competitive with lies.
With all the shenanigans around c-ratings, it is really hard to know what battery to trust!