The connector that's used on the
PivotPi is called a
Molex KK. But this is its technical name.
Generally, they are known as
Here's a link to these connectors on sparkfun.
So the spacing between the pins is
This means you have 2 options of connecting a battery to the
Pivot Pi connector-wise:
polarized housing connector from sparkfun and solder wires to it.
Or use a standard
2-pin header to which you can then solder some wires that go to the battery - I'd go with this route if you already have some header pins.
The power supply
Generally servos can work well between
6.0V, so I think a
USB power bank could do the job.
Don't forget that the servos can have really big spikes in the drawn current for very short periods of time, so I wouldn't supply a
Raspberry Pi from the same power bank, as that would cause a crash of the
And the last important thing is that a
USB power bank can give a relatively small current (up to
2.5 amps), so you won't be able to power too many servos with the
Hope this helps you on your project.
If there are any more things you need to know, we'll be happy to help you.