I was using rechargable batteries in the OWL PF. They work great, BUT you will not get the date/time stamp if you use them. I thought the Date battery was dead but after getting every cam out of the woods and checking the charge on the lithium date battery I found they were okay. Every pic did not have a date on them. I will test tomorrow to find out if the rechargable battery ruined the date/time circuitry in the camera. I doubt it did, but I will run a few pics to Wal Mart to make sure.