I just saw this charger at HC, I'm very impressed about the power: 1000 Watt! And that for only $180, very cheap imo...

Specs:
Input voltage range: 4.50 – 38.0VDC
Charge current range: 0.05 – 30.0A
Discharge current range: 0.05 – 30.0A
Maximum charge power capacity: 1000W @ input voltage 23V (500W @ input voltage 12V)
Maximum discharge power capacity: 80W
Maximum regenerative discharge power capacity:1000W
Maximum extern discharge power capacity: 1200W @ 40V/30A
Current drain for balancing: <500mA
Balance accuracy: <10mV
Lithium (LiPo/LiIo/LiFe)battery cell count: 1 – 10 series(In non-balance mode, expand LiFe to 12s)
NiCd/NiMH battery cell count: 1 – 25 series
Pb battery cell count: 1 – 18 series (2 – 36V)
Log Files storage: 16Mbit (31 hours)
Battery setup memories: 10
Intelligent temperature control: Yes
PC Connect: USB port
Weight: 750g
Dimensions (L X W X D): 143X123X46mm / 5.63X4.84X1.81in

Link: Click!

But... which power supply should be used for this thing? (HC only got 400W Power Supply's iirc...)