PBBAT_DCAPACITY
sc->sc_bat_sensor[PBBAT_DCAPACITY].units = capunit;
sc->sc_bat_sensor[PBBAT_DCAPACITY].value_cur = WATTS_DESIGN * 1000;
sc->sc_bat_sensor[PBBAT_DCAPACITY].state = ENVSYS_SVALID;
INITDATA(PBBAT_DCAPACITY, ENVSYS_SWATTHOUR, "design cap");
sc->sc_bat_sensor[PBBAT_DCAPACITY].flags = ENVSYS_FMONNOTSUPP;