Exceeded my expectations, its all about direct sunlight.
Don't be listening to all the negative feedback, this solar panel is legitimate. Every single day my battery (spotlight camera) is charged to 100% every single day, I am impressed.
By Brandon on February 13, 2021
UPDATE: MARCH 20 2021
I have a total of 2 batteries in my Spotlight camera, both are charged to 100% everyday.
My recommendation: Have direct sunlight, overcast (cloud cover) can alter the charging performance time to time but on a day with direct sunlight you are for sure getting a full charge.
Winter season was not an issue regardless how cold it was outside, I was able to keep my batteries charged up.