This should get you anything you end up needing...and there is a dealer link. I think I got mine from NoBs Batteries....

http://www.voltmagic.com/

Don't let the instructions overwhelmyou. It takes a while to understand it, and interpret it.I got a little mixed around trying to figure it out and even discussed it on RC Universe a bit. Once you understand it, it is a very handy little device.

A simple digital numeric readout is about the only improvement I can see for the device as the series of LED's get a little cryptic at times.

I'd be happy to help you with the device should you run into trouble. Just PM me with your phone number and I'll give you a shout.

I'm taking my 11 year old to fly his Tiger 60 tonight..and probably tomorrow too. Also have a trainer on the chord for my 9 year old daughter. So much fun watching them I'm surprised it's not illegal!

Tom