Ahhhh this one post light is going to drive me crazy…let me re-run this by you again. I bought a few months back 2 solar post lights, should have used them right away, this is what is happening. When I received these lights, pushed the off/on button they lit up, I still set it outside knowing it was not fully charged (bought 2 lights only having trouble with one) let it charge full sun for a day, it lit up but for about 1 hour. I brought the light in took 1 of the batteries out, these are the 660 mah’s , when I took the one battery out , the light came ON? WTH? Put the battery back in with the other one, it goes out. Just checked it this morning of course the light was out sunlight was hitting panel, covered it with my hand it came on for about 25 seconds, light went out, recovered it with my hand and it doesn’t light up…talk about confusing….thank you soooo much helping me on this, I have a lot of Solar Lights but this one is extra special????? I am going to start hitting the bottle (just kidding but it cross my mind) thank you again.