Thanks for showing me those. Is there a manual for it? Also, is it small? the robot is only 16 in. tall, and the body is fairly small. Thanks!

If you are looking for something smaller and don't need the display. You can try one of these

http://www.pololu.com/category/131/step-down-voltage-regulators

There are both standard regulators and buck/switching regulator styles available.

or something like this one:

http://www.pololu.com/product/2120

You probably need an adjustable unit. Have a voltmeter handy these don't have the nice display.

Size is mostly determined by the amount of current you need to provide.

Those first ones are the ones i need. One more question. How do those connect?

Does anyone know how those connect?

According to the website, the regulators have solder points that headers can be soldered to or terminals blocks can be soldered in and then wires can be inserted into the blocks and screws hold the wires by tightening them. Both are included with the regulator.

Oh. Well, if I have to get those, I will. Is there a 6v regulator where it just snaps right into the servo port and the wire can just plug into it? That is, if regulators like that even exist

What im trying to find is a regulator that doesn't need to be soldered in. Just a regulator that snaps into the servo port, and then the wire can plug into wire connected to the servo.

How would these connect? http://www.centuryheli.com/products/productdetail.htm?prtnm=CN2133&pageid=810

Would they just snap into the servo port like i wanted?