AA Batteries Rechargeable AA Lithium Battery, 1.5V 3000mWh High Capacity AA Lithium ion Batteries, USB Type C 2 Hours Quick Charge Double A Rechargeable Batteries 4 Packs

THIS... Is the Rechargeable Lithium AAA Batteries with Charger and something that I am really happy to have bought. I have a few small house items left that require AAA batteries, but mainly my front door lock needs them too... and because I really never use AAA batteries I never have them on hand! However, Now it is easy for me to swap them out for two on the charger without worrying. Battery life is good, and I still expect these to wear out over time...but they have saved me so much money in being rechargeable that they have already paid themselves off and the next ones off! Peace of mind and easy on the wallet, in a small platform! Deal!

These batteries were exactly what I was looking for! I have a device that will alert me when the batteries get low, so that I have advance warning that they need replacement. Most rechargeable lithium batteries would not support that feature because they output a constant voltage until they are depleted. These genius batteries will slowly decrease the voltage to simulate what a normal alkaline battery would do. They also start at a higher voltage than rechargeable NiMH batteries do when full. This way the device has a way of knowing the percentage of battery life left. They also charge very quickly, and I love that they simply need a USB type c charger, or use the included cable to connect them to a USB Type A plug.

Received the unit, was new in a sealed box, batteries were in a sealed package. Plugged the charger in and only 3 cells would charge. The other one was dead, no voltage and would not take a charge. I switched the batts around to make sure there wasn't a bad charging cell. The problem followed the bad cell. For the premium price you would think the merchandise would be good too! Returned this and purchased a Tenavolts charger and 4 batteries and it works perfectly.

Some devices will begin flashing and then disable power. Not sure why this security feature happens given the lack of product information, but when it allows to be paired with something they work great and the recharging process is the best feature IMO. Simply drop it in to a corresponding port (positive end down) *lacks the direction of this detail* and that's it. When it's finished it will glow green.

I have to admit I had been thinking about these for years, but I have used old school rechargeable (non-lithium) batteries in the past with mixed success in my kids toys. So I thought with the impending snowstorm coming and us always burning though batteries with Scouting... I'd give these ones a shot. I like the package and the little box holder they come with. It alos has a usb to 4 USB-C connecters (one for each battery). They have cool little led lights for you to know when they are fully charged. I put them in the flashlights incase we lost power (never did), but they worked just like the real thing. Can't attest to how long they will last as I have only had them a few weeks, but they worked, look cool. Nice deal. Rechargeable battery have come a long way.

Product: Ziyokthy model T5 (USB-C) Rating: 1/5 (poor) The description trumpets its compatability, which is directly contradicted by the design of the contacts, which only seem compatible with their own brand of batteries. See 3 pics: side by side comparison of a Ziyokthy AAA 1.5v vs another brand, a pic of the charging ports showing 2 contacts req'd for the + ends of batteries, and a pic of multiple different brands of batteries needing recharge but which the charger fails to recognize (the lighted ring changes from green to orange when actively charging a compatible battery). Unless you're prepared to use their proprietary batteries exclusively, I recommend ppl AVOID THIS BRAND ENTIRELY. I wasted my money on it.

love this thing! It charges my batteries super fast, which is a lifesaver when my toddler’s toys run out of power. It also has a sleek design and a smart indicator. The circles turn green when the batteries are fully charged and red when they need more juice. It’s so easy to see at a glance. Some of my other chargers have tiny screens that are hard to read, but not this one. This product is awesome. I’m going to get the AA batteries too.

Being able to recharge these has saved me a lot of money. The charger works well.