Last items in stock Casio Cmos Backup Battery Li-ion Battery fits Casio, It3000, It3000m53e, It3100 3.0V, 200mAh CS-IT3000BU $23.70 As one of the worlds most successful third party battery manufacturers Cameron Sino have been certified and approved by multiple authorities. There products are all verified and tested for safety. There can be occasions when the battery model number or the model of your device is not listed in the information below. Don't despair contact us via live... Add to cart