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View Full Version : 1/4 scale servo hook up questions


Mnster
08-20-2004, 12:25 PM
Right now I have two standard servos with 111oz of torque.
From what I have read in the previous posts 1/4 scale servos require a receiver pack because of the high drain. I'm going to get the cs 80's so those come with a Y-harness. Would the servos be fine running on 7.2 volts in series? Because series would divide the voltage between the two servos right? I know to low right. Or maybe I could wire a cooling fan system to take some of 7.2 voltage away. What voltage would I need to power two servo.

I can get 7.2 lithium Ion packs for cheap.
http://www.allelectronics.com/cgi-bin/category.cgi?category=160550&item=LBAT-35&type=store#

Or should I just make a few packs of nimh
http://www.allelectronics.com/cgi-bin/category.cgi?category=160200&item=NMH-2100&type=store

http://www.allelectronics.com/cgi-bin/category.cgi?category=160200&item=NMH-110T&type=store

SR5Dave
08-20-2004, 01:21 PM
Right now I have two standard servos with 111oz of torque.
From what I have read in the previous posts 1/4 scale servos require a receiver pack because of the high drain. I'm going to get the cs 80's so those come with a Y-harness. Would the servos be fine running on 7.2 volts in series? Because series would divide the voltage between the two servos right? I know to low right. Or maybe I could wire a cooling fan system to take some of 7.2 voltage away. What voltage would I need to power two servo.

I can get 7.2 lithium Ion packs for cheap.
http://www.allelectronics.com/cgi-bin/category.cgi?category=160550&item=LBAT-35&type=store#

Or should I just make a few packs of nimh
http://www.allelectronics.com/cgi-bin/category.cgi?category=160200&item=NMH-2100&type=store

http://www.allelectronics.com/cgi-bin/category.cgi?category=160200&item=NMH-110T&type=store

I think you mean parallel? They'd only be getting 3.6 each though then, although I bet those on 3.6V would still tear the sh!t outta anything that got in their way!! I might do that, cause I'm afraid the CS80 is too much for my knuckles.

Lunatic
11-21-2004, 02:24 PM
any updates on this setup?
i just ordered two of these servos (http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXLN93&P=0) for my crawler and was thinking of doing the same, splitting a 7.2 batt between the two servos.

SPEED_RACER
11-21-2004, 03:59 PM
don't forget that with series the easiest one will get most of the power.which usually is the rear,the one that don't need it as much