Panasonic CTL1616 CTL1616F Rechargeable Battery for Casio will fit : G-Shock, Pathfinder, Wave Ceptor, Pro Trek, Tough Solar, Edifice, Lineage, and other models. Genuine Casio Replacement 2.3 v, 18mAh rechargeable battery Brand: Panasonic Size: Diameter 16mm and Thickness1.6mm it also fits: