They told me that a y cable can be constructed for the 2010 DS/S that could provide quick charging.. I was inquiring about a 2010 model before I got the 2011 model DS.. The Y cable can also be constructed for the older 2009/2010 X and MX bikes.. When I asked about constructing the cable they were all really wishy/washy about it though.. I was told they used them but for some reason, nobody knew who had them, how to make them and that I could possibly find out online.. Something I found unacceptable.. They should be able to give you anything you need for these bikes! Especially if they have used them before.. I like my two Zero bikes, but the company's laxidasical attitude towards giving the customer the parts and compatability info is absolutely terrible! I've been waiting 2 months for info on the rear sprocket bolt pattern.. They only offer 3 sizes and I want more options, they assured me the 4 bolt pattern is some standard but none of the guys at Zero know for what... I mean they construct these bikes, engineer them from the ground up and they somehow end up with a sprocket bolt pattern, of which, they know nothing about?!? AHA Hah ha.. Crazy! So if you start asking about the Y cable for the earlier models don't expect much..