Hello can anyone help?

For my son's school project he's looking to have multiple mini motors running for one power source

I don't know much at all on electronics so any help appreciated

Motor similar to below. Running light load.

https://www.technobotsonline.com/pololu-5-1-micro-metal-gearmotor.html

Thanks in advance

 

So ...."specs at 6 V: 2500 RPM and 50 mA free-run, 1 oz-in and 0.36 A stall." maximum current per motor is 0.36A .....

If 5 motors ...5 x 0.36 = 1.8A ... very unlikely all motors would be stalled at the same time so realistically less than 1A ,

Such motors can operate over a wide voltage range , probably work fine at 4V ... If you want a compact portable design you could run even a dozen motors on one of these ...
It's a lithium 18650 4.2Vmax rechargeable .just a bit bigger than an AA cell ... with tags or without... plenty enough power , buy a recognized brand , sony , panasonic .

 

You can wire the motors in parallel as shown in the image below.This can be extended a large number of motors.

 

You can wire the motors in parallel as shown in the image below.This can be extended a large number of motors.

That works as long as the battery has the current capacity to run all motors at the same time.
And if all the motors are started together, than it has to initially handle the 0.36A stall current times of all the motors.

 

Thanks all

So with 5 of these motors wired in parallel would the 5v 2a acdc adapter I have suffice?

With 10 motors in parallel world that mean I need a 5v 4a acdc adapter?

Thanks for that rechargeable battery info too.. That will be useful

Dave

 

So with 5 of these motors wired in parallel would the 5v 2a acdc adapter I have suffice?

With 10 motors in parallel world that mean I need a 5v 4a acdc adapter?

Yes, if all motors will be started simultaneously.

 

Many thanks that answered my question!