I had the Reaktor 300 charger from Hobby King, and it served me well until I hooked up the batteries before plugging it in, magic smoke. So instead of getting another one I bought the original, the I Max 206B. I really like this charger, and can see why Hobby King copied it, the absolute best charger on the market in its price range. I picked it up for $115 with a $10 discount from AMain. I also modded a Hewlett Packard 750 watt computer power supply, for around $25. The mod is easy if you know how to solder, or you can pick one off EBay, already modded, for $40. If you like compact equipment like I do, this is one small system that doesn't take up much room at all. This power supply can easily run two of these chargers @ 62.5 amps. Highly recommended!!