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BrianG · 05.28.2009, 01:52 PM

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.

	(#1)
BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	05.28.2009, 01:52 PM 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.