VITAL 389 silver oxide battery gives your compatible specialty devices such as watches, digital equipment and electronic devices long-lasting power. VITAL batteries are tested for their lasting power and efficiency, so you won’t need to worry about constant replacements. This battery is generally used to replace 389, R389A, Energizer 389, 189, Ray-O-Vac 389-1W, Duracell D389, D189AB, Maxell LR1130, G10, V10GS.