USB Universal Smart Battery Charger for 3.2V LiFePO4 Batteries with 4 Pieces 3.2V LiFePo4 14430 4/5 AA (14 x 43mm) 400mAh Rechargeable Battery

First day, am writing because the charger is a little funky. I got the batteries and charger and before pulling out my tester put the batteries in to charge. All four went from red to green quickly, so I am guessing they shipped with a full charge. I then plug in the old batteries, 2 from working lights and one that should be dead, they showed a full charge, including one that I knew to be low/dead. Green lights green, that was not as it should be. I than used my tester, found the dead one, and two charged but not fully charged. I unplugged the charger from power, with the batteries out, waited a few minutes, then but it all back. The red charging lights now were red, and am waiting to see when they turn green. Ran the charger on the three old batteries, it charger them as it should. Lights went from red to green overnight. Now to use the 4 NEW batteries and see how they hold up, and edit this review at some future date. Also 1 battery that came with 1 light was a DURACELL SOLAR. In the future I will most likely buy Duracell if I can find them. As of now a good buy. Hopefully I will update this in the future, after I see what happens in the coming months.

What an intelligent purchase. If you have solar powered landscaping lights, this is your product! Cant share my pictures for some reason. Burlington nc 12/1/25

This is a very good charger, I used ours when it arrived and it charges pretty fast. I recommend this one and the price is great. Plus 4 batteries incl.

Upon receiving the batteries, I first confirmed they were the same size/voltage as the original batteries that came in the solar light. I placed them in the provided charger. The indicator lights were initially red and later green as the batteries charged. All seemed to be working. I installed the two batteries into my two solar lights. They were nice and bright. I checked them before going to bed and both lights had gone out. The next day was nice and sunny, so I decided to see if they would charge. That evening, one came on weakly and lasted less than 2 hours. The other never worked at all. I tested the other two batteries with similar results. They will charge in the charger, but little or not at all in the solar lights, even with many hours of sunlight. It appears the batteries are poor quality, so I’m sending them back.

I got a solar light at Lowe's for lighting a Christmas display but would dim earlier than I had hoped. There is not much sun where the display is, so I would have to remove it from the stake and place it in the sun, if the sun was shining that day. Not the most reliable thing to do but I didn't want to bother using electric. With the shorter days in the winter, and low angle of the sun, even if the sun was shining all day, the light would dim before midnight. I got tired of the poor performance of the light and after matching the size of the battery (it's shorter than a regular AA), I bought these batteries and four port charger and am pleased with this setup so far. Now the battery that came with the light works as well as the additional 4 that I bought and the light stays bright all night. I would recommended this product.

OK, older battery type, question is what is it later ! No labeling at all, nothing referring to what battery type it charges ! Reason for one star off. I may never use it, because the reason of buying was for a solar light, but it was the LED and not the battery !

Funciona perfectamente y carga las baterías rápidamente

At first I didn't think I'd be able to use these batteries, as they're shorter than regular AA batteries, and a higher voltage. I discovered that using a 7mm diameter, 18mm length metal spring, with a "dummy" AA battery (available from Amazon) I can replace two regular AA batteries. For devices using three AA batteries, the third can be a regular AA battery (which won't last as long as the LiFePO4 battery!).