Hixon 12 Pack Rechargeable Lithium AA Batteries & Charger|1.5V Double AA Li-Ion Battery|3500mWh|1600Cycles||Max 3A Discharge| - Home&Office Use|Blink Camera|VR/Xbox GamingPad|RC Car,etc.

Great customer service. I had an issue with 2 batteries. They reached out and promptly said they were replacing the def batteries. You can't ask for better service then that.****I had high hopes for these batteries for door locks. The cinstant 1.5v is nice its actualy about 1.54v. However my lock stopped working in abkut 3 weeks. I checked the voltage and found 2 batteries were still at 1.52v. Great, but 2 were at 0v. Not good.Why did 2 of the 4 die while 2 still had full.charge. i tried to charge the 0v batteries but no luck. Seems they are dead.Now i have 6 batteries out of my 8 pack and my lock takes 4. I cant swap a set out like i planned. When the locl dies, ill have to full charge the batteries or buy more to ha e a 2nd set of 4. That defeats the purpose of buying an 8 pack.I hope more dont die as well.

I've been using these in various devices for about six months with no complaints. Recently my wife revealed that her personal CD player, using NiMH rechargeables, would die after just a few hours use. I loaned her a couple of these and she reports that they last at least twice as long. They're also quick and easy to recharge with the bundled charger.I like that their output voltage starts higher than NiMH and does not gradually decay in use, as NiMH batteries do. If the documentation is to be believed, they run at full voltage until exhausted. This is more important in some devices than others, but is never a bad thing.

Last a decent amount of time

These batteries work really well and have excellent capacity. They charge quickly and after many cycles are performing wonderfully. It’s important to know that the charger they come with can only charge these specific type of cells. Further you cannot charge these cells in a standard NIMH AA charger.When looking over the available types of lithium ion AA batteries that use an internal voltage converter like these two, I very much prefer the type that charge from USB directly so that you can still recharge the cells if you can’t find the charger they came with.If you are confident you won’t lose the included charger, then these are perfect.

They put out a full 1.5v which is better for some devices.The shelf life after charging is excellent.Now that I have a charger, I wish Amazon would carry a version that doesn't include that.

So I have mixed feelings on these. I needed 1.5V batteries for my Original Blink Outdoor cameras.It first worked out of box for one of my cameras, then it lasted like half the time compared to the one time use 1.5V energizer batts that were still going strong in my 2nd camera.I then notice cameras not turning on or connecting for live view and thought may be the Blink cameras themselves. Buy now I have concluded it may be the batteries causing this.Because I tried fully charged hixons on the new Blink Outdoor 4 camera and the app wouldn't add the camera. When I plugged it in with the power cable and adapter, the app updated and added the camera, live view even worked right away.Again with these Hixon batteries installed, the camera fails to start live view and sometimes would go offline. The camera doesn't ever work with them, I put provided Energizer 1.5V lithium batteries in and it loads right up.I concluded that these batteries may be a hit or miss, maybe even faulty. I have one set installed in one camera and it usually loads, another set in another that always fails loading live but is online. And a third and fourth set trying to install on the Blink Outdoor 4 that never worked. These 3rd and 4th sets were used in the two older Blink Outdoor camera previously as swaps.I wouldn't recommend these if you need 1.5V for sensitive high powered equipment. May work better for flashlights or remotes.I even bought a new set with charger for the Blink Outdoor 4 and same issues. I am definitely returning those. I'm out of luck on returning this set since I had it for more than 6 months and used and charged maybe 4 or 5x. But just now realizing the issues.

These batteries are being used to power a ROMI robot, an aide to programming using FRC's WPILib environment. When fully charged these batteries output 1.5 VDC, and that output remains constant until nearly fully discharged. In contrast, Ni-Mh batteries only output ~1.3 VDC when fully charged, and they decline from there until effectively exhausted at maybe 0.9 VDC. The higher output and the better consistency from Li-Ion batteries is very beneficial for this application, especially for tuning PID control loops. Varying voltages will change the robot's response, making control loop tuning frustrating.Of course, other brands of Li-Ion batteries should provide the same advantage, if of equal quality, but I cannot comment on them because I only have experience with these Hixon AA 1.5V batteries, for which I have been and remain very satisfied. I would recommend them for any use benefitting from a consistent portable voltage supply.The first buy was made in June 2021, and the latest buy (to support a 2nd ROMI) was made in Nov 2023. Both purchases consisted of 8 batteries plus charger. For both orders all batteries received charged perfectly, and to date the batteries from the earlier buy have been through over a hundred discharge/charge cycles without any failures. Hixon's charger was used exclusively. Regarding battery life, the runtime in a ROMI is maybe 1.5X the runtime provided by 1900 mAh Ni-Mh eneloop brand batteries, but with the advantage of consistent performance. One disadvantage of the Hixon charger is that it only holds 4 batteries, but with two I can now utilize both in parallel, very useful since a ROMI requires 6 batteries. Even though relatively expensive, to me, these Hixon batteries have proven their worth.