Put batteries in it and use the solar power only as backup.
answered 2 months, 2 weeks ago
My first charge was about 4 hours of hazy sunlight. Since then, it gets morning sunlight while sitting on my deck. I rarely use it for more than 2 hours and it never runs down.
The tiny manual says 5 hours in full sunlight will charge it completely. I haven't tested to see how long it actually takes to charge but it lasts over 3 hours on the rechargeable battery once fully charged.
You probably already have your answer but...I keep it charged by putting it in a window every now and then and that is only partial sun. I just turned it on and it ran for over 3 hours. It hadn't been in a window getting sun for over a week.
If you leave the lantern out for 5 hours, you will get 2 1/2 hours of light.
I never tried overcast conditions; but I believe u could leave it out longer, and it's still charged. FYI: the night light can last up to 16 hours.
Day light last up to 2 1/2 hours!
answered 1 year, 1 month ago