A cryoablation system comprises a balloon catheter including a cryoballoon, and a fluid container configured to supply cryogenic fluid to the cryoballoon and to store a residual fluid quantity. A first fluid sensor senses the residual fluid quantity and generates a first sensor output. A second fluid sensor senses fluid consumption information representing an amount of fluid consumption by the balloon catheter during one or more ablation procedures, and generates a second sensor output. A controller receives the first sensor output and the second sensor output and determines residual cryoablation information based at least in part on the first sensor output and the second sensor output.
