do i need a tune up or something else??

[grunt0311]

Have a Ex II that's uses batteries up (8 double AA) in about 8 hours of use. Question :is this normal? I also have two rechargable batteries

and these only last a few hours each.. Is it the machine or something else??

 

[Nw digger]

That seems a bit excessive but I have seen running open screen with max sensitivity drain batteries in 5 hours. Heat also will drain batteries quicker but I don't think that's the case.

 

[MikeO]

Might have your backlight turned on? Easy button to hit and you wont notice it being on in daytime.
Break down and buy an RNB Battery you get about 30 hours on one charging.

 

[The Magician]

I use Eneloops, any high quality slow discharge batteries are the go. 8 hours is about right is you max out the screen contrast, have a high threshold, sens, etc.

 

[BigTony]

When you charge your batter, do you give it the full 13 or 14 hours according to the manual?
I have an Exp II and charge it that amount of time and it works fine. Leaving it outside in the cold or hunting when it is cold out will drain your battery too.