Full sunlight without battery, no red dot.
Full sunlight with battery, red dot.
Do I have a defective unit? Trijicon said unit is not defective. Unit requires a battery to power up in sunlight. Once the SRS is powered up then you can remove the battery and still have a red dot.
Bummer. I was planning on using during daylight with no battery.
This review was written in the old system and had content requirements that are different than reviews written today.