EB70 Options for quiter AC charger

Hey all, I have got 3 of the EB70 units. And my biggest gripe with them is that the charger they come with is just horribly noisy. It has this horrible little 40mm(i think) fan in it which runs whenever the charger is powered up.

Just wondering if anyone has got any good suggestions for a quieter or preferably silent charger for it? Have been thinking of getting some 200w ish laptop chargers (20volt 10amp) and just adding the DC7909 connector to them.

I would look for something a little higher voltage from 26 to 29 volts so you will get the full 200 watt input capacity.