BIX_UNKNOWN
if (sc->sc_bix.bix_last_capacity == BIX_UNKNOWN) {
if (sc->sc_bix.bix_voltage == BIX_UNKNOWN) {
if (sc->sc_bix.bix_last_capacity == BIX_UNKNOWN ||
if (sc->sc_bix.bix_capacity == BIX_UNKNOWN) {
if (sc->sc_bix.bix_capacity == BIX_UNKNOWN) {