2600mAh 18650 size Lithium Ion Torch Battery (sometimes called 18700) suits Cree, Dereelight, Dx, EDI-T, Extreme, Fenix, Fenixlight, Huntlight, Inova, iTP Light, JetBeam, Kingpower, Leatherman, LumaPower, Maglite, Nitecore, Nuwai International, Olight, Pila, PowerBeam, Princeton , Silverpoint, Skylight, SoShine, SureFire, Tiablo, TrustFire, Twofish, UltraFire, Wolf Eyes, XTAR, Zebralight