That is common with the stealth and moultrie cams. I haven't heard of any good remedies to get rid of it. It is just something we have to deal with until they figure something out.

As far as the battery life, I purchased an external 12v lead acid battery for my I450 and it makes a world of difference. The camera has been out 3 weeks and still shows full battery. I was getting 10-14 days with batteries. It cost $40-50 depending on where you get it, but I figured it would pay for itself in a month or 2.