The Provari has always had a List Price and a Sale Price since it was released, the sale price has always been $159, that hasn't changed. Not sure about kit pricing as I wasn't interested in either of these in kit form.
I could have swore the "sale" price was $182 something a month ago when I was looking..could be wrong though..I thought about just buying the device when I got my LT but I figured might as well try the kit in case I didn't like it. After getting my kit I found out the batteries that come with the LT appear to be Sanyo ur18650w IMR's..if they are they are either safe to 15a or 20a constant draw.
I know from using them they hold up very well I get a day or 2 of good use out of one..the charger is a bit on the cheap side but it works like it supposed to on a multimeter it charges at 4.19v charges them pretty fast and the battery doesn't even get warm. So I've very been happy with my kit and batteries..in fact I plan on just buying another LT in the future and using the 2nd battery they hold up that well that I don't feel I need another battery.