Range Finder problems.

I"ve never heard of a rangefinder being re calibrated. Maybe the solution is as easy as cleaning the lens. Hope you find an answer

Are the batteries dying?

Might be just some silly questions from me, but any fog or particulates in the air? Was the unit allowed to have drained batteries in it for some time bc low voltage can be damaging to some chips and memory sectors. Just thinkin outloud…

I have a Vortex Optics Impact 850 I bought about 2 years ago. I use it a lot at 100 yd max and it works great for me. Just looked and the new/replacement model on Amazon is a model 1000 for $199.

Doesnt take much of a voltage drop to make a battery weak! Especially on these high tech range finders. All those fancy electronics take steady power...

put a NEW battery in 3.26v. old battery checked @ 3.02 v. should have been okay but i m going to find out today. thanks.

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3.02 VDC but with no amperage draw, even a couple of hundred milliamps can drop that well below 3V, teetering on the logic level threshold or simply just not keeping the caps charged, which is what I would bet on given the intermittent operation. Remember to remove the batteries for longer term storage to reduce DC induced corrosion. Keep us posted!