RE: TP 820CD Charger & A123
Roy... that charger is sweet. Maybe is not the most powerful in the market but the fact that is so easy to use, was enough for me. Plus also you can use with your normal power supply or just plug it in the wall.
I have the three (3) chargers at home and I'm planning to buy two (2) more in order to leave in my shop at the club.
By the way, Team Orion just came out with two (2) other models that are more powerful but they are still not available in the US (only in Europe).