4s 8000 lipo what brand?

[BrianG]

A truggy requires around 250w average power (typical from most people's runtime vs battery capacity figures). At 250w and 4s, that equates to ~17A average current. With 5Ah cells, that should give you around 17 minutes of runtime. With 8Ah cells, you should get around 28 minutes of runtime - still a bit short of 30 minutes.

But don't forget that with added capacity comes added weight, which adds to the load and will reduce the runtime. Track conditions (high grip vs low grip), drivestyle (lots of heavy throttle starts vs smooth throttle finger), ESC settings, etc all play a role too. Set the punch control high to allow the ESC to more gradually apply power (helps limit burst current and increase runtime).

But, for a solid 30 minutes, 6s paired with the proper motor and gearing is the key IMO. For the same 250w figure, 6s requires only ~11 average current. You still would need a little over 6Ah to get 30-35 minutes.

[superek4]

Hi Brian,

So if I m not wrong u r saying 6s 5000 will last longer than 4s 5000?

I m running a x2 CRT with 50slip diff n 12pinion, medusa 2000kv motor n watever batt that will last 30mins or more

Originally Posted by BrianG

A truggy requires around 250w average power (typical from most people's runtime vs battery capacity figures). At 250w and 4s, that equates to ~17A average current. With 5Ah cells, that should give you around 17 minutes of runtime. With 8Ah cells, you should get around 28 minutes of runtime - still a bit short of 30 minutes.

But don't forget that with added capacity comes added weight, which adds to the load and will reduce the runtime. Track conditions (high grip vs low grip), drivestyle (lots of heavy throttle starts vs smooth throttle finger), ESC settings, etc all play a role too. Set the punch control high to allow the ESC to more gradually apply power (helps limit burst current and increase runtime).

But, for a solid 30 minutes, 6s paired with the proper motor and gearing is the key IMO. For the same 250w figure, 6s requires only ~11 average current. You still would need a little over 6Ah to get 30-35 minutes.

[lincpimp]

Originally Posted by superek4

Hi Brian,

So if I m not wrong u r saying 6s 5000 will last longer than 4s 5000?

I m running a x2 CRT with 50slip diff n 12pinion, medusa 2000kv motor n watever batt that will last 30mins or more

If you have those batts running different kv motors that both end up spinning the same max rpm and the same gearing on each the 6s pack should give you half as much time again, say 30 mins vs 20 mins on the 4s. You have half as much voltage again with the 6s compared to the 4s.

A 1500-1600kv motor would be the best bet, along with a 5-6k mah 6s lipo. That will yield the longest runtime to the lightest weight. Plus you could get away with a 25c rated packs for track speed, that will also help with weigh/size as the higher c rated cells tend to be a little heavier/larger.

[BrianG]

Originally Posted by superek4

Hi Brian,

So if I m not wrong u r saying 6s 5000 will last longer than 4s 5000?

I m running a x2 CRT with 50slip diff n 12pinion, medusa 2000kv motor n watever batt that will last 30mins or more

Yes. Like linc said, 6s 5Ah will have more runtime than 4s 5Ah paired with the right motor geared for the same speed. No matter how you slice it, it takes X amount of power to run your vehicle the way you want, for the length of time you want. Since power is V X A, higher voltage requires less current for the same power output.

Originally Posted by lincpimp

...that will also help with weigh/size as the higher c rated cells tend to be a little heavier/larger.

... and cheaper.

[superek4]

Originally Posted by lincpimp

If you have those batts running different kv motors that both end up spinning the same max rpm and the same gearing on each the 6s pack should give you half as much time again, say 30 mins vs 20 mins on the 4s. You have half as much voltage again with the 6s compared to the 4s.

A 1500-1600kv motor would be the best bet, along with a 5-6k mah 6s lipo. That will yield the longest runtime to the lightest weight. Plus you could get away with a 25c rated packs for track speed, that will also help with weigh/size as the higher c rated cells tend to be a little heavier/larger.

I ran 1600kv on my main it was slow as I geared 12t n during my heats I use 16t n was slow. If I run 1600 I hv to gear higher (my heats is 10mins)

It means I may hv to do motor swap during my heats n main

[superek4]

this is my setup n amain videos, i think its slow i m running 6s 5000 with 12pinion medusa 1600kv n 50slip diff on x2 crt.

i was 2nd in 20mins b4 my motor wire got desouldered, its a 25min main(usually 30mins)

its the pinky car with black rims



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