Small hobby motors and size difference

Community General Discussions
1

I have been putting motors into duck decoys inorder to make them swim. My concept is very simple, I have a motor connected to a switch that goes to 2 d batteries.

My question is referring to the different size hobby motors
130, 180,260,360 etc.
I tried 130 and they work okay but dont seem to put out enough torque and aren’t quite fast enough.
I tried the 180 running 44000rpm and it flew through the water but the batteries didnt last long enough, only about half as long as the amp drain said it would. I assume it still isnt running enough torque and the motor is stalling out and draining the battery
If I went up to a 260 motor and ran it closer to 20000 rpm do you think the batteries would last longer?

I am very new to this and trying to get the fastest motor that can run for a long period of time off of 2 d batteries

2

Hi @Leesingle678, and welcome to the forum :slight_smile:

Can we see some of your devices? :smiley:

Which 260 motor are you using? For example this one: https://www.robotshop.com/en/r260-3-6v-12000-rpm-brushed-dc-motor.html ?

And which D batteries are you using?

3

Hi there @Leesingle678 :grin:

As @igor_X suggested it would be great to have more information. Also, I think this tutorial may be helpful to you since it explains some of the things you should keep in mind when choosing a battery like the capacity and discharge rate.

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4

I do not know the model of the motor but it is the small 130 size motor with a 2 mm shaft