I know i would like to upgrade to 36v and li-ion battery. How is this battery? http://www.ebay.com/itm/2012Newest-36V-10Ah-Li-ion-Water-Kettle-Battery-with-BMS-Board-Charger-/230846994698?pt=LH_DefaultDomain_0&hash=item35bf8d990a
Can you recommend a compaitble 36v controller? I have a 10 mile...