Kratax AAA Rechargeable Lithium Batteries, 8pack 1.5V 1100mWh Li-ion Triple A Batteries with Intelligent Battery Charger, Constant Voltage Output, 1600 Cycles Long-Lasting for Household and Business

I like the new charger with the display of how full each battery is. The charger I am replacing was fine and will keep it as a spare, but only had a light whopping charging was occurring

These are the best batteries ive found . I have bought both the triple A and the double A and they last forever. I need a few more and bought them again. I tried a couple other brands ad the one only last at most 6 months . I will only be buying these when i need more.

These batteries come with a nice USB charger. As soon as I received these batteries, I charged the batteries from my desktop computer and almost all of them were done within a couple of minutes. In other words, they had maintained a full charge while stored and shipped. A few of them took several minutes to reach a full charge, but that's still very good, as far as I'm concerned.I tried to check the capacity of the batteries by using an Opus charger, but that didn't seem to work. I got strange readings and a "null" reading partway through the "Charge/Test" cycle. So I don't really know how good the batteries are without knowing if they have the proper capacity. If I find a way to check the capacity later on, I'll take away a star if the capacity is too low and I'll ad a star if the capacity is what it is supposed to be.I bought these batteries for use in a blood pressure monitor. I had been using Panasonic NiMH batteries in the blood pressure monitor, but those batteries are less than 1.5 volts and when the voltage starts dropping, the blood pressure monitor starts signaling that the voltage is getting low. Now, with these new Lithium Ion batteries, I'm expecting to get more blood pressure readings before a lower voltage is reached.Update: These batteries solved my blood pressure monitor problem. I've checked my blood pressure about 30 times or more and the batteries are still going strong. I still have to check the actual capacity if my charger/tester will allow that.Update: My Opus charger doesn't seem to work on a Charge/Test cycle with these batteries. I tried again and it didn't work. So I'll just have to go by performance instead of a capacity readout for these batteries. The 2 in my blood pressure monitor definitely seem to be doing well. Eventually, I'll be able to try all of them in the monitor and that will tell me more.

So much better than ni-cad rechargeables. Typical lithium full power curve. One of the batteries was glitchy because it wouldn't take a charge. It resumed charging when I loaded the charger with the power OFF, then plugged in the usb-c power cable. I liked these so much, I got a set of both AA & AAA batteries. The charger works with either lithium AA or AAA batteries. Charger & batteries may not be interchangeable with other brands, but works with both Hixon and Kratax brands. Highly recommended!

I would not buy these again. The batteries (if they charge fully the first time) last as long in my wireless mouse as they do sitting on the shelf. I might as well not charge any more than I'm using at once, because the "charged" batteries will be dead by the time I need fresh batteries.Not giving 1 star because the charger and batteries kind of work most of the time.

Have bought these batteries previously to use in various trail cameras. The charge lasts a long time and recharging with the supplied charge only takes a couple hours. Well worth the price not to have to constantly be buying alkaline or even non rechargeable lithium batteries.

Seam like a good quality product. Have had them long but charger works good batteries also slip in and out easily. Only issue is a higher watt charge block wont work. Use a 12 watt that works great.

2 of the batteries that came with it won't charge. I purchased an 8 pack of batteries and only 6 of them work. You would think a brand new battery would work, but nope. 2 of them won't even register on the charger and won't charge. Worthless. Hopefully I'll get my money back, or they'll send me a replacement.

Chargeur rapide, bonne quittée des piles, merci

NEW REVIEW: After leaving my initial review, the seller reached out to me very quickly and promptly sent out new charger. The new one works without any issues and charges all 4 slots simultaneously. I plan on purchasing more batteries and will be looking into getting the AA one as well eventually.OLD REVIEW: After having used this product weekly for about two months, I have noticed that this charger can charge ONLY charge TWO batteries at a time, despite the 4 slots.If you add one or two other batteries to charge while the first two are already in, the incumbent ones will STOP charging and erroneously indicate that they are full, which has inconvenienced me multiple times.However, it DOES charge and fairly quickly at that BUT being limited with charging only two batteries at a time is a pain considering that there are 4 slots after all.

I have tested one of the batteries, actual capacity at 200ma discharging is about 980mWh, 664mAh. I have to say it is not so bad from capacity perspective. Weight at 8.6g , it is a average weight of industry. Don't expect much, but merely qualified product.

The charger stopped working after just one use! The AAA cells only lasted for a few minutes in a flashlight that lasts for many hours with regular alkaline batteries. After a few minutes of being on, the light started flashing on and off and the shut off completely.

Mes nouvelles piles au lithium Kratax que j'utilise dans mes télécommandes ont aussi bien fonctionnées dans mon thermomètre extérieur sans fil jusqu'à -38 deg Celsius. Je peux donc abandonner les piles Nimh et alkalin.