BLE sensor Advertising Interval longer than 10.24s

Hi all,
I have some SI7021 temp/humidity sensors I have wired with nrf51822 BLE modules.
I am advertising the sensors’ value on a fixed interval.

It seems the advertising interval in BLE is limited to a max of 10.24 seconds. In my case I would be happy with a longer interval of at least 1 minute to save battery life. Does anybody have experience with this use case?
Perhaps there is some other interval that I can set more liberally?