I Have had my Impact 4000 for about a year now. Overall I'm happy with the product. Recently I took the unit out for some training in winter conditions. 15 degrees F, light snow cover. Noticed almost immediately that battery life MAX was about 15 minutes, no backlight use. Also, when the laser was fired, the screen would go blank momentarily before turning back on and displaying the range. Once the Low Battery icon flashed the consistency/accuracy of the target ranges became very suspect and unreliable.
Has anyone else experienced these issues, or used their impact in very cold weather? I also understand that this is a CIVILIAN range finder and expectation of performance needs to be evaluated in extreme environments. That being said, up here in the northeast its very cold for months on end and I'd like to understand the capabilities of this unit.
Does anyone have experience using a higher end unit (MARS, Wilcox) in cold conditions and do those units perform similar?
Also for reference, I was using energizer lithium CR123A batteries that had been checked beforehand. The same batteries lasted all day in my Vectronix Terrapin/Kestrel. Thanks for any feedback!
Has anyone else experienced these issues, or used their impact in very cold weather? I also understand that this is a CIVILIAN range finder and expectation of performance needs to be evaluated in extreme environments. That being said, up here in the northeast its very cold for months on end and I'd like to understand the capabilities of this unit.
Does anyone have experience using a higher end unit (MARS, Wilcox) in cold conditions and do those units perform similar?
Also for reference, I was using energizer lithium CR123A batteries that had been checked beforehand. The same batteries lasted all day in my Vectronix Terrapin/Kestrel. Thanks for any feedback!
