will this be compatible with the new Li-ion Battery?
As I understood tthey are making the new battery compatable. However, in my experience lithium ion is not better other than by reducing weight. Thats the only reason its being used in aviation. Supposably it will hold 30 percent more energy but in my experience with the new battery shift it is not always the case. the user interface is not friendly on this set either my re omendation would be to just get either a quantum set or an einstien set both have portable battery packs and much better user interfaces. Also the einstiens with the pocket wizard sets u can do hyper sync same with quantums sets. So unless you want to spend a lot on very little i would look to other portable lights. After six months of use i retired the rangers.