Very good day/night scope - Sightmark Photon XT 4.6x42S Digital Night Vision Rifle Scope

I have two now ,they work good but the 6.5 one I have eats batteries? I don't know why,it sits on a table in the off position but batteries die fast?? not happy with your 6.5 So I'm @ $100 per hr rate and I have to add more to this write up who do I bill ?Why does my 6.5 use up batteries so fast? I t works great but sucks on battery usage,is this long enough ?Who do I bill for my time?