Due to FeRAM technology (as opposed to regular Flash) your data in BC Vault is safely stored without any data loss from being unpowered, over 200 years at 35°C or 10 years at 85°C (although we don’t really recommend storing it in a place that is hot!)!
Additionally to that, The memory cells used in the FeRAM can be used for 10^13 read/write operations per byte, which is a significant improvement over the number of read and write operations supported by Flash memory and E2PROM.