Replacement Battery for Kyocera - Yashica BP-780S works with Kyocera - Yahshica CONTAX SL300RT, Finecam SL300R, SL400R Replaces Kyocera BP-780S Fits Kyocera Finecam SL400R, (Yashica) Finecam SL400R, Kyocera CONTAX SL300RT (See Product Description for Additional Fits) 3.7 Volts, 780mAh Capacity Lithium-Ion 3 Year Warranty