http://www.electrosport.com/

Friendly, very helpful, no bs on the phone.

Unit has a nicely made metal case with heatsink fins, bolted right into place, uses nice contacts as well.

Maintains constant 13.56V from idle to >5k rpm.

I only have a week on it, so I have nothing to say about reliability, but it does come with a warranty.

YMMV!

 

how much was it?
I bought one from an 929, and grafted it one, it has worked fine ever since.