Great info Mark. I've never ran a car long enough to run down a 5000mah. My kids used to put a 4000mah in their stampedes when camping and they would barely use two packs each all weekend. They ran forever. I use the 3000mah 2s shorty packs in my trail trucks and they give good runtime. I still use 6 cell 1800 nimh packs in certain Tamiya cars. Thanks again for explaining.
Very enlightening video. For all those r/c youngsters who sit in math class and say we'll never use mathematics. You're wrong. Just like when guys running foam tires calculate roll out, when you're calculating final drive ratio, etc. Thanks.
I bought a Rustler, a few years ago, to replace a Rustler I traded for some cheap toolboxes way back in the day. I remembered my old NiCad batteries would last about 5ish minutes so I bought an 8000mah Zee battery off Amazon, thinking I'd probably get about 20 or so minutes off it. I actually bought 2 of those batteries so I didn't have to worry about it, because I bought the XL5 version and put my very old 17t Trinity Speed Gems motor in it. Yeah, after about 40 minutes of bashing, in grass and on concrete of a park, having to stop to cool down not included, I didn't need 2 batteries 😂😂
At least you have enough battery though. LOL. All I had when I got my SC104x4 after a long break was a 6cell 4300mah NiMH. Titan 12T and it lasted 4 mins flat. 20 mins charge. LOL fun
@@daveshank1921 I was genuinely shocked, I have the 2wd version so I'm sure that helps as well. My motor is faster than the titan is, I'm guessing because it's fewer turns it's more efficient too? 4 minutes on a 4300 would upset me, not gonna lie lol
@@ralphlongo1975 I was waiting on the money for a brushless system for the truck so I threw in some stuff I had. I was asking way too much from that titan and batt. SC104x4 needs a good brushless and has a habit of eating batteries from amp draw.
Great explanation Mark. Competition RC sailplanes guys have used this method to optimize on battery size and therefore optimizing flying weight. Also with the same data one can also work out the average amperage which comes out to be around 17.7A in your case - which seems quite low considering the ESC, battery and motor combination. In RC planes the average amperage is used to gauge the appropriate smallest ESC (less weight) possible (a poor mans method without the proper bench test equipment available). However yes I know quite impractical in the RC Car world. Just thought I'd enlighten you further.
hey mark! i have a question, i just bought and HRB 3s 5000mah lipo batt for my 2wd slash and i started having a green and red flashing light steering works tho but then when i put back the traxxas 2S 5000mah lipo everything works just fine. what is going on, it seems that i cant find the right fix or answer for this problem. im juts not sure if i have to do something with the esc or what? thank you much
Help me guys , one cuestion: What type of battery can I use that lasts 30 minutes in my Tekno 2.0 1/8 electric? I would greatly appreciate it For now I bought the 7500mah 130c REDLINE battery🙌🏽
I know this isn't related to the video...but, I also figured people in here (including Mark) would probably have the answer. Regarding the MSM t-shirts, do they run "true to size", a little large, or a little small?
Nice video but I think that all of your calculations just work in theory.First of all you should never discharge a LIPO battery all the way down to 0% so when you have a 5000mah battery you cant calculate for 5000 but for about 70% of the max capacity.In addition the battery dont discharge linearly,meaning that the more you "play" the faster it discharges.Please correct me if I am wrong or lost something!
That was proper application of the unitary method of calculation. Loved it man. Great job. Keep it up.
Great info Mark. I've never ran a car long enough to run down a 5000mah. My kids used to put a 4000mah in their stampedes when camping and they would barely use two packs each all weekend. They ran forever. I use the 3000mah 2s shorty packs in my trail trucks and they give good runtime. I still use 6 cell 1800 nimh packs in certain Tamiya cars. Thanks again for explaining.
Extremely useful information Mark! I appreciate all you do for us!
Marks over going all MIT math lessons and im just plugin and prayin lol on the for real though very very useful.
🤣🤣🤣🤣
This is great info for new and seasoned RCers
Great Information Mark! Thanks for the math lesson!
Good info. Like it. Sound pretty accurate. I get close to 20min on a ZEEE 5200 4s in my EB48.4
Good stuff Marko
Still drooling over that platinum Revo 😂
Very enlightening video. For all those r/c youngsters who sit in math class and say we'll never use mathematics. You're wrong. Just like when guys running foam tires calculate roll out, when you're calculating final drive ratio, etc. Thanks.
Tks Mark! Now all I need is a track to run on
Ok....now I have to get Lipos for racing 👍 Great information thanks!
I bought a Rustler, a few years ago, to replace a Rustler I traded for some cheap toolboxes way back in the day. I remembered my old NiCad batteries would last about 5ish minutes so I bought an 8000mah Zee battery off Amazon, thinking I'd probably get about 20 or so minutes off it. I actually bought 2 of those batteries so I didn't have to worry about it, because I bought the XL5 version and put my very old 17t Trinity Speed Gems motor in it. Yeah, after about 40 minutes of bashing, in grass and on concrete of a park, having to stop to cool down not included, I didn't need 2 batteries 😂😂
At least you have enough battery though. LOL. All I had when I got my SC104x4 after a long break was a 6cell 4300mah NiMH. Titan 12T and it lasted 4 mins flat. 20 mins charge. LOL fun
@@daveshank1921 I was genuinely shocked, I have the 2wd version so I'm sure that helps as well. My motor is faster than the titan is, I'm guessing because it's fewer turns it's more efficient too? 4 minutes on a 4300 would upset me, not gonna lie lol
@@ralphlongo1975 I was waiting on the money for a brushless system for the truck so I threw in some stuff I had. I was asking way too much from that titan and batt. SC104x4 needs a good brushless and has a habit of eating batteries from amp draw.
That data analysis knowledge coming into play!
Very good explanation and breakdown.
Will you ever try the 100mph slash challange/project? You have plentty of them👍🕵
Yessss!! I vote for this too!
Wow, that was very helpful. Thanks Mark
Thanks for speedy delivery on washers and extra thanks for the stickers as they come in handy for things I make for rcs including bodys ofcourse 😀
👌👌👌
Great explanation Mark. Competition RC sailplanes guys have used this method to optimize on battery size and therefore optimizing flying weight. Also with the same data one can also work out the average amperage which comes out to be around 17.7A in your case - which seems quite low considering the ESC, battery and motor combination. In RC planes the average amperage is used to gauge the appropriate smallest ESC (less weight) possible (a poor mans method without the proper bench test equipment available). However yes I know quite impractical in the RC Car world. Just thought I'd enlighten you further.
Thanks for that, I’ve often wondered
Great video, excellent mathematics.
Very helpful! And I didn't even have to ask.
Hell yeah !!! Great info!
Back in the day we ran scr Sanyo they would ran for four min on good pack right gear
Very useful video, and well explained. Thanks Mark!
Very good tech tip.
Good information
Will this apply to normal use like going to a park or something I feel like this only works for track use
Good Vid man. Good Stuff
Great video
Where did you buy your battery percentage thing from?
that means a 10000 mah lipo battery in theory could run for 30 minutes, thats insanely good!
Good evening bro
Very helpful 👌
Cool video
After spending 120 dollars on Spektrum Batteries i cant watch this.😣 ok maybe later tonight lol.😃
So would two batteries essentially double the runtime?
I usually set my low voltage cut off to a higher level than most people. 3.6 or 3.7. I probably would have hit lvc before the race was over.
I usually turn my lvc off… haha! I dont want it to cut out if im super close.
hey mark! i have a question, i just bought and HRB 3s 5000mah lipo batt for my 2wd slash and i started having a green and red flashing light steering works tho but then when i put back the traxxas 2S 5000mah lipo everything works just fine. what is going on, it seems that i cant find the right fix or answer for this problem. im juts not sure if i have to do something with the esc or what? thank you much
I have one for Traxxas 5000mah 14.8v 4s how long-running time for my Maxx
Thank you!!!
RC Math Class
Help me guys , one cuestion: What type of battery can I use that lasts 30 minutes in my Tekno 2.0 1/8 electric?
I would greatly appreciate it
For now I bought the 7500mah 130c REDLINE battery🙌🏽
I like to see how many runs I get out of a battery , powerhobby has beaten all ive tried
Is 5000mah the typical battery size for 1/8 e-buggy??? What is the most common at the club??
Between 5000-6500 ;)
Hmm 🤔 I wonder what size 6s battery I would need for a 10 second car with a 4985 motor 🤔
I know this isn't related to the video...but, I also figured people in here (including Mark) would probably have the answer. Regarding the MSM t-shirts, do they run "true to size", a little large, or a little small?
I would say true to size
@@MarkSantaMaria Thanks. Once next paycheck in deposited (and the shirts I want are available in XL, or 2XL), I'll get my order in
What about LVC? I see most guys with Hobbywing hit LVC before draining the battery that much.
What's that stuff you're doing with those funny shaped letter things.?
Looks complicated....
Nice video but I think that all of your calculations just work in theory.First of all you should never discharge a LIPO battery all the way down to 0% so when you have a 5000mah battery you cant calculate for 5000 but for about 70% of the max capacity.In addition the battery dont discharge linearly,meaning that the more you "play" the faster it discharges.Please correct me if I am wrong or lost something!
🔥💕👍
Both of my battery's took a crap. I run a Traxxas max.
too much for me im bad in mathematics ............plase tell me with traxxas 3s 4000mah
thank you :D
There, now was that so hard????
Alot of traxxas advertising going on there.
Lol wut!?
Lol… sorry