3 So far have been unable to open the box that holds the batteries. It could be my arthritis, tho. Posted by Daryl Ann Johnson on Dec 17th 2022 I bought these lights to wine through the trees I purchased to accent my Carolers collection. Haven't been able to get the battery ox open, but once I get past that, these should be just the right touch. I like the timer feature - I don't have to worry about them!