Worked great thanks!, I also got a 392265 battery (510mAh) http://www.ebay.com/itm/171883243753?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT but that ended up being almost exactly the same size as the lip-4wm so can't fit within the old case, someone with mad skills might be able to make it work. also tried it inside the MZ-N10 but it doesn't have a notch the lip-3wmb has.
This might fit inside the lip-4wm case