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BrianG · 01.11.2008, 11:20 AM

Also consider that hardly ANY car/truck setup will pull 50A continuously (boats, planes, helis are different). The average seems to be around 10-20A, depending on setup. Of course, there can be bursts well over 100A, but they are pretty short in duration.

To figure out your average amp draw, just multiply your battery capacity by 60, then divide by your runtime in minutes. Your burst current is right around 6 to 8 times your average current. So, let's say you are using 4,000mAh batteries and get 20 minutes of runtime, the average current draw is 12A. The burst current is then likely somewhere between 72A and 96A.

If you are pulling more than 50A on average, then you should probably be looking at upgrading the wire size as well (assuming 12G wires).

	(#12)
BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	01.11.2008, 11:20 AM Also consider that hardly ANY car/truck setup will pull 50A continuously (boats, planes, helis are different). The average seems to be around 10-20A, depending on setup. Of course, there can be bursts well over 100A, but they are pretty short in duration. To figure out your average amp draw, just multiply your battery capacity by 60, then divide by your runtime in minutes. Your burst current is right around 6 to 8 times your average current. So, let's say you are using 4,000mAh batteries and get 20 minutes of runtime, the average current draw is 12A. The burst current is then likely somewhere between 72A and 96A. If you are pulling more than 50A on average, then you should probably be looking at upgrading the wire size as well (assuming 12G wires).