The WP2 II can use the same car adaptor as the original WP2 according to Xtar. I think they could do a better price if combined with batteries or more than one charger as shipping costs them around $5-7 just for one charger, but only a few more $ to add another to the order.
That said, I would buy this charger at $25, maybe even $40 if that was what I had to pay, (and I didn't already have 2) it is very good.
edit: this offer seems to include adaptor (flat or round) but not so sure about that eBay link. Any experiences? I already have a 12V powersource so no particular need for another one...
Two free spacers come with each charger I'm pretty sure.
There are multiple reviews on CPF and here for the WP2 and WP2 II, the new version has a better charging algorithm, so is safer and easier on the cells, has two charging levels to select from (500ma and 1000ma) and also the USB discharge function. It is generally better fit and finish too.
There are many small differences, one is USB, another is lower terminatations current, i.e. batteries are filled better, especially small batteries. The V2 charger also has two current levels.
2 spacers are included normally (on ebay, they are - yes, on the cheap auction, too). To charge a 16340 you need both - so you could not charge 2 16340 concurrent.
Is it possible to offer two different packages for a better price (the second package is good for the people, who have bought some XTAR battieres in the past)
1. 2x XTAR 18700 2600 with 1x WP2 II
2. 2x WP2 II
It would be perfect, if the packages could also be combined with a MP1 charger (for travel). For I good price I would buy 2 WP2 II and one MP1.
Just received mine. Unfortunately it didn't contain any spacers, so there's basically no 16340 support in that.. And no car adapter, but that I already knew. BUT the seller did include an EU plug adapter as a free gift, nicely done.
(It was ordered from ebay, if that makes any difference)