RC-Monster Forums - View Single Post - MGM article on voltage under braking & lipo quality

BrianG · 10:22 AM

Good find! The results make sense and reflects what I have found in some personal tests. The solution to use an ESC with at least 1s-2s higher rating than the voltage used is something that I currently do, and has worked well. Actually, it is a good practive with anything electronic for greater lifespan.

But I guess it depends on the manufacturer too; do they rate their ESC voltage/current close to the max component rating to increase sales, or do they rate their ESCs with some "headroom" already built in? I would assume that the more expensive ESCs fall into the latter category, while cheaper ESCs fall in the former category.

Option b, using a controlled shunt device, is what the MMM uses. However, this is not a perfect solution because if they are overworked and fail (fail open), the user most likely will never know since its presence isn't obvious during operation.

	(#2)
BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	06.30.2009, 10:20 AM Good find! The results make sense and reflects what I have found in some personal tests. The solution to use an ESC with at least 1s-2s higher rating than the voltage used is something that I currently do, and has worked well. Actually, it is a good practive with anything electronic for greater lifespan. But I guess it depends on the manufacturer too; do they rate their ESC voltage/current close to the max component rating to increase sales, or do they rate their ESCs with some "headroom" already built in? I would assume that the more expensive ESCs fall into the latter category, while cheaper ESCs fall in the former category. Option b, using a controlled shunt device, is what the MMM uses. However, this is not a perfect solution because if they are overworked and fail (fail open), the user most likely will never know since its presence isn't obvious during operation. Last edited by BrianG; 06.30.2009 at 10:22 AM.