I've heard they will introduce the NEW nitecore Ez123 soon, with a XP-G.
I got the EZ123, but the contact ring in the emitter head fell off... Sadly. Wait a bit for the new nitecore, YouR PD10 cant go wrong.
About the rcr battery, i used AW rcr batteries in it for months, then suddenly; the light got extremely hot and i took the battery out. The battery just died! I did put ANOTHER aw rcr in it, and that died in a second.. Cant understand it. Nitecore said the EZ123 was able to use 3,7 v batteries.