Kratax AA Rechargeable Lithium Batteries, 4 Pack 1.5V AA Li-ion Batteries and 2.5H Intelligent Battery Charger, 3500mWh High Capacity, 1600 Cycles Long Lasting, Constant Output for Household Office

Not sure how long they will last since they are a Christmas first. They came completely dead. I charged them and put them inside the RC car I bought and gave the extra batteries and charger as a gift. FromMy extensive review research I think the charger w the digital display is the one to buy. Hopefully I’m correct but I will never know as this was a gift to a charity for a boy that wanted car toys. I encourage everyone to buy at least one gift for a charity kid who otherwise couldn’t have a Christmas. All kids deserve the wonderment of Christmas

Es de súper larga dimensión de la carga, me encanta fue mi mejor compra.

Update: Company offered an unsolicited refund, so I added 1 start to the reviewThe company did replace two defective batteries reason for 3 stars, but they seem to blow easily or stop working after a while. There is some electronics in the head where the blue light comes on and they tend to malfunction and won't recharge. Have not had any meltdowns though. I have a few that still work, but I would say not ready for prime time yet. As the charger still works I may order new batteries at a future time and re-evaluate.

I’ve been using Nickle Metal Hydride batteries in my trail cams, but as soon as I put the cameras out, they would already be down to 75% power. So I thought I would try these Lithium batteries, they charged really quick, they have been in use for over a week and they still show a 100% charge, and the camera has taken over 200 15 second clips in that time, and the videos taken at night are really clear. You can make out a lot of detail, that I wasn’t getting with the NMH batteries. I like these enough to purchase the 12 pack of batteries to use in some other trail cameras.

I purchased these batteries back in February. Everything was fine until two weeks ago. One battery is totally dead. Not holding a charge and will not take a charge. When you need 8 batteries for a game camera it’s not good. I should have known better!

I use it for the blink cameras and it is worth the money because regular batteries are so expensive and this just needs to be recharged.

Liked the first set I bought a month ago, now bought this one with slightly upgraded charger. These measure 1.51 volts and rated on battery as 3500 mAh. As a comparison, well reviewed Panasonic Eneloop white batteries measure 1.35 volts with rating of 1900 mAh. Eneloop Black batteries also measure 1.35 volts but with a rating of 2450 mAh. Both Panasonics are great batteries, but these Kratax AA's have both a higher output voltage AND have considerably higher energy density at 3500 mAh. A BIG PLUS with 84% more capacity than Eneloop whites! Came nearly fully charged and topped off in about 15 min. Just plug in any USB charger. Comes with short cable. Nice

Using the batteries for my keyboard and mouse!! Working well!

These batteries are a very sophisticated bit of battery technology and they have served me well in my flosser until the moment when they no longer work. I bought them earlier this year. They tell me they have a 30 day money back policy, but I am not looking to get cash back. One bettery from the eight failed on me this morning and I would like to replace it. I put the batteries into the charger and that one battery will not take a charge and shows on the charger window as a sort of greyish silhouette. I don't need them to replace all the batteries or the charger, just that one battery AAA Lithium Ion battery... but I cannot find any place on their web site where this is possible. One page says they have a two year warranty and all I need to do is fill out the form "below" but there is nothing "below" that even resembles a form for me to fill out. Does anybody know what I can do? I am concerned now that maybe all eight of the batteries are going to crash in a magger of a few months and not the two years or the 1000 charge cycle they advertise.

Très satisfaite merci

Gps

The charger takes usb C, but will not work with a normal usb C because they did not properly implement the standard. It can only work with A to C cables that don't require requesting power delivery. Batteries seem to work anyways, but I'm nervous about the chip in the battery that is supposed to keep them from bursting into flames if they're cutting corners on usb c power delivery.

Used to power drone controller. Too early to comment on performance over time. Will have to wait to confirm stated specifications. Good value even if only half the number of recharge cycles occur.