I have the 3.1 and the first time I set it out, it worked flawlessly, but the second time, I only got pics of me setting it up. I even tested the aim on the infared and it was right at the bait. still do not understand it. I set out for one week the frst time and one week the second time, and still have 76% of the battery left, at least that is what the digital read out says. I have not had a chance to set out agian os I am curious to see what happens.
I have the Moultri brand batt and it works good for me, I got the solar charger too, but have not used it yet, when i do I will post again.
jake