I use a 33amp 12 volt LED power supply on ebay.....

It works a treat and I have loaded it right up and has no problem at all. follow the link below to see the exact one I use

http://www.ebay.com.au/itm/12V-30A-3...ht_4967wt_1114

I know this one is saying 30amp but the previous model was 33amp.

I hope this helps but you have to wire it up to your ac voltage and make your own wiring with plugs and what not to set your charging station up and so on..


Regards
Fordy