[thefro526]

Originally Posted by kstl99

We purchased an inverter from Andymark for $33.00. It is small, works great and comes set up to connect with a robot battery.

http://www.andymark.biz/am-0626.html

I second this option.

An inverter like that is an awesome thing to have, and is worth it's weight in gold. When you're at a competition when you can be away from your pits waiting for a match for an extended period of time, an inverter is a good way to keep your OI charged and up and running. I've seen a lot of teams leave the inverter and a batter on their cart and use it exclusively for powering the OI.

Oh, and it's also good for Demos and stuff too.