CT ENERGY AA Lithium Batteries Rechargeable 1.5V 1600mAh AA Battery with Micro USB 1.5Hrs Fast Charging Li-ion Double A Batteries (4Pack)

They'are very nice looking batteries and come with a handy usb charging cord. I can charge 4 batteries at one time. I installed these 1500mAh lithium batteries to my kitchen motion sensor light. It takes four Alkaline batteries but I don't like throwing away Alkaline batteries. So far these CT ENERGY 1500mAh lithium AA batteries are working properly.

These are a very convenient solution to the rechargeable battery need. No need for a bulky designated charger since they charge over usb.Just be mindful of the fact that they are nominally (under-)voltaged. I use them in smart iot devices and they can trip the low battery warning despite a charge not actually being needed. This is not a product fault per se, But just something to keep in mind.Other than that, these are working great so far!

One out of the four each time I recharge is not recharged. The charging light comes on when I plug it in, but later, I check and find neither red nor green is on. Fiddling with the connector intermittently activates the light.NOT GOOD!At this price, these should be better than this!!Does anyone have better luck with other brands? I want more of these, but not sure I want to be the final quality control inspector for the vendor!

I recycled them. I am also not convinced they are actually Lithium.

Works much more better than my previous aa batteriesI bought these usb aa batteries two weeks ago, now trying on my game pad. They worked great on a full day of play time. Its charging very fast in 2hours they work again. prefer to devices requiring aa batteries in my house.

The batteries are acting just as they're supposed to, however, one (1) of them was DOA. Very disappointing given how much these cost and that you only get 4 at a time, meaning that if you need exactly 4 batteries, as I do for a power sucking gaming that I was planning to take with me on a trip, one non-functional battery renders all 4 useless to me. I'll likely contact manufacturer and return. Buyer beware.

These do not have the voltage differential problem of NiMH batteries, which makes them much more useful and superior performing rechargables. The only drawback is they have lower capacity (amp-hours) than the alkaline standard. They work great in LED flashlights and computer mouse.

I like the longevity of the power, cost savings, and effective this product represents.