I'm confused? I guess so, as well as Vnor who posted above me and I commented on, as well as Philips who told Vnor they were Li-Ion, and the box my light came in said Li-Ion, and the batteries say Li-Ion, and the service person I spoke to when I had to have the light warrantied for a bad charger or cell said they were Li-Ion . So I guess all of that is confused, or maybe we're all being lied too? Maybe that's why they stopped making the light?