I ordered 2 of these kits and received them today. So far 1 battery in my kit does not work at all! The light comes on but it seems that the carto is not making a connection? I am sick about this because my husband and myself are sharing 1 kit until kit #3 gets here. I took my second kit to my mom already and hope she does not have these problems. I did take a small screwdriver and raise the screw in the middle as it looks like it is way too far down to make a connection with the carto compared to the other battery. If anyone has a quick fix that I could try I will appreciate it.