I have 4 game cameras with 6-volt SLA AGM batteries. This is so much cheaper than buying eight AA batteries about every week or so. This small solar panel has kept the batteries at over 6.5 volts while taking more than 200 20-second videos at night. My only complaint is the plug on the panels is not compatible with my setup so I had to cut them off and attach terminals. The wires on the panels are VERY TINY and hard to work with, other than that…highly recommended.