Rechargeable AAA Batteries USB C 1200 mWh Triple AAA Rechargeable Battery 1.5V AAA Lithium Batteries with 4-in-1 Charging Cable and LED Charge Indicator, 4-Pack

This rechargeable AAA battery works great for the toys. It is very easy to charge through the type C cables. The battery lasts a very long time. The size fits well. Good value for money.

Great, they work, awkward to charge but not so bad, I am using these in the 3 remotes now to test them, before I buy 4 more packs of these. I only use these in low power usage devices like remote controls and some of my medical metabolic measuring devices, still that's 16 rechargeable lithium-ion batteries I need plus an extra 4 for charged standby so I don't have to wait on charge cycles when they run low. The FireTV remote seems bad to drain batteries fast, it must be the Alexa stuff and the constant comms they do with the TV / FireTV Box.

Good lasting battery they function good and good value for my money love that I don’t have to buy constantly batteries I just charge them and reuse. Very durable. Good size.would like them to be usb but I have to plug it but it’s good

I am switching to the rechargeable batteries (AA, AAA, 9V) from regular ones. I already have several rechargeable that require a charging station, whichbis fine in home situation, but there are many times you would need to recharge on the go. These batteries don't require separate charging station, they have a USB-C port right in the battery and you can charge it with any 5V USB-C cable anywhere. You can charge it on the go from a portable power bank. That's great. It is listed as 1200mWh, need to run the tests to see how closely that really matches the spec. Output is standard 1.5 volts. When charging, battery flashes green light. ONE BIG NOTE: I initially struggled inserting the USB-C cable into these batteries. Almost returned them thinking they are defective. Turns out that you do not insert the cable into the USB port straight at the center pointing straight. You insert it at a slight angle off-center. I tried to show the example in the photo. It feels like you are about to bend the internal usb port contact inserting it at such angle, but turns out it's the correct way for this battery. I checked photos of other buyers and they show exactly same, it is inserted slightly off-center and at slight angle to the left. Taking one star off for this as there are no instructions describing this and causes confusion.

I have a Pelican pen light that absolutely devours batteries. I keep two of these batteries in the light and two charged up in my desk drawer so I can swap them when needed. They work great, and charge in a couple of hours.

I tried charging these on two new chargers I have made for both NiCad and Lithium AA/AAA batteries. 3 out of 4 would not even accept a charge at all no matter which of the 8 position slots I tried on both chargers. My battery tester which displays volts to the nearest 1/10 volt showed NO reading/display at all on the 3 bad (dead) ones and 1.5V on the one that did charge ok. Those 3 batteries were dead. Given these were inexpensive and a gamble anyway, lesson learned. Will return these for refund and shop for a more reliable brand and more positive reviews than just 30 or so for this brand reviewed here. I suggest avoiding these. Even if they arrive and charge ok, my feeling is the risk of failure later-on is higher for this particular brand and model #.

These batteries accurately provide 1.5v for the full length of their endurance - a definite improvement over standard batteries that produce decreasing voltage over time. However, the endurance of a full charge is very short - about six hours for a string of LED fairy lights. Charging is easy enough, though the angle of the charging port is a bit odd - it is NOT straight in towards the center of the battery, so be cautious inserting it until you get used to it. The indicator light on the + end of the batteries is very handy both for making sure you have the cable inserted right and for knowing when the batteries are charged.

I use them constantly in mouses and remotes they work great i have a few sets