Looked back several pages to try and find the thread that referenced battery use and drain. I just recharged both batteries to 100% Sunday afternoon and haven't yet used my camera in 3 days. I checked the batteries for charge levels and they show both at 99%. I'm just putting this out for reference to that topic as I'm guessing this is average of fresh batteries. I've read posts in the past that some folks had an overnight drain and wondered if it was normal. This would be the first time I've recharged batteries since the use of the Canon grip, so far so good!
Yea, actually quite happy with the battery results with mine, no problems at all. I put this topic out so if somebody did a search that had a battery drain question, hopefully mine could be used as a reference as I think it's the norm...thanks for the replies.