Top positive review
10 people found this helpful
Seem pretty good but not magic
on December 26, 2013
So far so good. I bought these to replace some original 250mah rated ones in the same size with the hopes of extending the operating time of some solar lights. They have met my expectations so far and I thought the price was reasonable for lithiums.
There's some poor reviews on these and maybe I just got a good set, but I think the issue that disappoints people with solar lights is that they need a long day of full sun to maximize run time. The batteries aren't magic and if you don't have enough light to charge them fully, you'll get limited use. For some solar lights with very small solar cells, even with full sun, you may not have enough charge output to take advantage of the higher capacity battery. If you have your lights in a shady area, you probably won't get the run time you hope for. You need full Southern exposure for the best results. If you don't have that, solar lights may not be for your regardless of the batteries. I think that is why there are mixed reviews on these.
In my experience with these, I have gained some run time on nice sunny days, but not so much when it's cloudy or overcast. The particular lights I'm using have a solar cell about twice the size of many you see. At least in theory, the larger the cell, the more it's charging capacity. But keep in mind, the charge rate on all of these is very very small.
I think these are decent batteries but they may not cure your issues. The size of the solar cell and the amount of sun the installation gets is key to how well solar lights work.