RTC_CTRL_4A_VRT2
(ctrl4a & RTC_CTRL_4A_VRT2) ? "ok" : "not ok or N/A");
if (!(rtc->read(rtc, RTC_EXT_CTRL_4A) & RTC_CTRL_4A_VRT2))
if (ctrl4a & RTC_CTRL_4A_VRT2) {
((ctrl4a & RTC_CTRL_4A_VRT2) ? "ok" : "exhausted or n/a"),