Replacement battery fits 6 Elkron compatible models. Specifications: 14500mAh, 3.6V, Li-SOCl2. Compatible with: 80HP8100111, HP30WL, UPH30WL, UWL31, Wl31 80WL0100211E, Wl31TG 80WL0200211. Replaces: Saft 3401111-01, Pila BAT80009, Pila 3401111-01, Elkron BAT80009. Elkron replacement battery designed for Security System devices. Simple plug-and-play replacement requiring no modification.