Has lasted all summerGood value. Bought these for solar lights. Have had no problems and would buy again.Rechargeable batteries are always hit or miss. Or maybe it is because we are not sure which one is right for the job. Make sure you get the right one for your outdoor equipment. Remember that the mAh is how long it will last. Let me explain. If your outdoor light let's say uses 600mAh. This battery is rated for 300mAh. So this battery will last 2 hours 300mAh divided by 600mAh. Now these numbers are just examples, but the key is knowing what your equipment usage is so you can calculate which battery to get.Pricing is right for this 300mAh battery and in most outdoor lighting usually I use 30mAh so for me these will last 10 hours which is fine for being on all night. So keep that in mind, you need to know how much your equipment will draw and then you can get the correct battery for your equipmentWorks great.Basic Solar Rechargeable battery good for the small cheap solar lights that you buy by the dozen. I wanted to try to see if replacing the battery is better and cheaper than buying new units. The batteries were received yesterday, and I checked them and they were charged. They also fit the unit I was using, so there were complaints about batteries that they did not fit or needed to be charged. The real test will be to find out if the solar cell is bad or the battery itself. I will shortly repair my bad units, and see if they come back to life.This is a great long lasting charger. It just take a while to charge.I have solar lights that use this battery size. I purchased the box of batteries and replaced the solar batteries that were old. One was a small globe light for a table, used 1 battery. The replaced battery didn't last more than 2 months. Just put another one in, I'll see how long this one lasts. disappointed.4 of the 12 so far haven’t worked. Wouldn’t order from here. Save your money.