You can charge your batteries both at home on a/c, and at the flying site with it connected to your car battery. It,s well worth the price!
I have the Hitec X2 AC/DC Charger and I love it.
In AC Mode I can charge 2 Batteries at once @ 3 Amps.
If I hook it to my external power supply or hook it to my car battery I can charge both @ 6 Amps.
Takes just shy of an hour to charge @ 6 Amps.
I use the Charge Master software (FREE) and hook it to my computer to manage the charger.
I also use 2 temperature probes on the batteries. The Hitec will stop charging if the temp rises above what ever level you have it set for. (safety first).
Bought mine from Tower Hobbies.
The hook up for an external DC power source is extra, does not come with it, nor does the temp probes. You will also need a couple of Andy's battery adapters found here:
Battery Charging Plug
hiWhere do you find "Charge Master"? Is it from Hitec? I have a Hitec X4 AC charger and love it! I tried searching for the Charge Master with Google, but it can't find it.
However, I found an App called Chargemaster for my android phone and it might be like what you mentioned.
How do you connect with the computer?
i have the Hitec 4X plus and i don't think you can down load any updates to this charger the later versions do have that capability , i know it has nothing about the USB in the manual .
My Hitec charger is the later version and the manual states there is a "PC-Link USB" adapter available, and sold separately. I looked on the Hitec website but found nothing about how to order one or what the price is.
The App I installed in my cell phone looks for a Bluetooth connection, so I'm pretty sure that won't help either.
It's not a big deal, though being able to monitor the information on my computer might come in handing if a battery starts acting up. I use my charger for charging my Phantom 1's batteries (4 at a time) and that is really nice.
I also have two of the Typhoon battery charge adapters coming real soon so I'll be able to charge both of my T-H batteries at the same time.