Home Forums Hunting & Shooting Hunting Optics Reliability of illuminated scopes?

I have a Sightron SIII 3.5-10 LRIMOA that has illumination. Most of the time I never even think about turning it on, but when it starts to get dark or I'm shooting against a dark back drop the little illuminated .25 MOA dot in the middle is very helpful because the reticle is so thin that without illumination sometimes I can't see it.