I love WGI cameras. I have never had any problems with battery life from mine. I guess I know what to expect for what I buy. Everything before the IR4 09 model isn't that great. I have used the s2 and just didn't perform. The IR4 is the lowest priced that will do the job right. They redid the IR4 in 2010 and it is even better. I would recommend the X6C or any of their new models that came out this year.