Well... So far I have a lead on CTEK copies at $55 a piece... That's going to put a big hole in my budget...
But then again they are proven to work, a friend had two and we hooked up four of my batteries and then tested charging two of the batteries, obviuosly I first checked that the chargers where isolated and would work that way... But knowing in theory and seeing it in practice are two very different things... One thing I don't like though is the 4A max charge... That's going to take a while... There are a larger model at 7A... but that's $87...