I got this extension cord because our sun access is limited where I live in the mountains, and I had to make sure I had enough cord to maneuver to the direct sunlight vs the location of the camera. I ran it across the carport on one side and actually had extra. It's too soon to see if the solar energy will help on the batteries. I have 6 Blink cameras, and this is the most active one since it's pointing out to the driveway traffic. I usually have to change the Lithium batteries 4-6 months and they're expensive. Will check back.