Shockli AA 3.2V Rechargeable Solar Battery with LiFePO4 Charger, AA 3.2 Volt LiFePO4 Solar Battery (4-Pack) for Panel Outdoor Garden Lights

Works. Doesn't seem to take long to charge like my old one. I like the multi function for different size V all in one charger.

My solar post lights are back to their former glory of sheer brightness. Batteries were precharged which was great cause I didn't receive until 2pm or so.

This charger is basically just a current limited supply at something approximating the selected voltage. It does not do any sort of charging algorithm at all and once charging is done it leaves the voltage applied indefinitely, which is not good for Lithium-ion or LFP batteries.In addition, in my testing, it charged the LFP batteries to 3.698V and held it there, not the 3.65V it was supposed to go to. A proper charger only needs to charge LFP to 3.55V hold that for 2 hours, then turn-off. Or charge to 3.65V and immediately turn off when the voltage is reached and current drops to near zero. This charger does NOT do this. It leaves the target voltage applied indefinitely.Needless to say, this puts a lot of unnecessary stress on lithium batteries. Is the charger still usable? Yes, just barely. You have to remember to unplug it when charging is complete and it would be a good idea to do it ASAP after charging is complete.I don't recommend this charger. Its too bad, because most lithium-capable chargers for individual cells default to lithium-ion rather than LFP and require holding a button down for 10 seconds every time you want to charge LFP (which is incredibly dangerous for LFP batteries if a person forgets or power is intermittent and resets the battery type), and this one you can just set a manual selector. But because it doesn't turn off at the end of charging, it is just about as bad as the others.

This battery worked great for about two weeks and the light just stopped working. I took the batteries out and checked the voltage of the battery and it was 1.2vdc no where close to 3.2vdc and it had been setting it the sun for 2 or 3 days on a solar charger.

The batteries performed like they said, used them this winter and they hold a charge well in this cold weather, I would recommend them to anybody I talk too.

Always needed this. Saves money on constantly buying batteries, plus it charges multiple sizes. Must have for outdoor lights!!

I got these for a solar lantern I have on my front porch so I don't have to turn on the brighter light just to take the garbage out and attract all the summer bugs. I bought these on Jan. 9th this year and I installed this battery in it and just replaced it two days ago, description says they last 3-4 years,, no they don't. I tried a regular Ni-Mh rechargeable AA in it and it doesn't work for what ever reason so I put the spare one and it works now, when it gets enough sunshine. Wish I could find a battery that will last longer than 10 months.

Getting the batteries to stay put to fully charge is a joke. Past the return date of course what a waste of money. I wanted to wait and see if it would eventually work for me I just waited too long!!!