NINMAX® Lithium AA Batteries 3500mAh, 8 Pack 1.5V Longest Lasting Double A Battery for High-Tech Devices【Non-Rechargeable】

DOA-Dead On Arrival- Haven’t had these batteries long. Iv already experienced 3 dead batteries out of 12 used.- Amended. After receiving the review that I left the company reached out to me and made my problems right. I did have a bad couple of batteries, but they replaced them free of charge. I must say their customer service is on top of things. Giving them another chance. So far so good.

These batteries are good quality without having to pay the price of other big name brands. They also last just as long.

***UPDATED***I originally gave these a 2 star rating since they only last about a month but the company contacted me and offered a replacement set which I received 2 days later. They also explained that cold temperatures could have caused the batteries to die prematurely. It was January and had been very cold most of the month so I'm hoping for better luck with the replacement ones I received. I updated my rating based on the great customer service.Used these in a Blink Camera. First set lasted about a month and died them. Now second set is almost dead after another month...So 2 sets lasted 2 months. By comparison, the “name brand” lithium batteries I used before lasted a year for one set (2 batteries). Nothing has changed with the camera use so these batteries are not long lasting at all to be lithiums. I will not be buying again.

These batteries are very good quality and reasonably priced. They will last for years in daily use.

I’d been using Energizer lithium batteries for a number of years in my Nest smoke alarm. They routinely lasted right at one year, before needing replacement.exactly 4 months ago, was time for replacement. Lithium batteries are fairly expensive, so I thought I’d save a little and opted for these. i’d say savings was about 30%. These lasted FOUR MONTHS!!! one-third the life of energizer.Once again, I’m taught not to cheap out on tech products. wondering if I will ever learn. DO NOT buy these. Go with energizer - they are a bit more expensive, but last three times as long.

So far, very good and no complaints. They seem to perform as well as more expensive brands. Only been a few weeks. I use them in security cameras so need them to be reliable.Update, now been several months since I installed them in my cameras and they are still performing well. Since I live out of state, hugely important. Highly recommend these batteries.

Testing the battery's voltage with a battery tester or DVMM is fine if you're trying to establish the output voltage. But the real test is when you check these batteries in a load-tester device.I keep all my batteries refrigerated and each battery container includes at least one or more humidity absorbent packets.I bought two, 8-count NinMax AA Lithium packs of batteries back in NOV 2023. When I received them, I left them in their boxes and immediately stored them in a Ziploc baggy along with several moister collection packets. I’ve been storing all my batteries that way for years.Then, when I went to use the new Ninmax AA Batteries recently, I first measured the voltage. The 4 new Lithium AA batteries that I got out from the NinMax package measured 1.77 Volts with my DVMM.However, I then tested all four AA batteries on an MBT-1 Battery Load tester and found that ALL 4 tested between 65% and 40%! The batteries advertised as having a long shelf-life and I felt that even though it had been almost a year before I opened the pack to use them, they should have been perfect because I had them stored in a refrigerator.I was disappointed with the Ninmax load test and blamed the battery’s quality for the poor load-test results. In fact, I wrote a review of the battery and noted the results of the load test. I also gave the batteries a low, 3-star rating.However, I later found out that when it comes to non-rechargeable, Lithium batteries, placing them in the refrigerator is exactly what I should NOT do!! Among the information I found when I researched the proper storage method for non-rechargeable Lithium batteries, was this statement:“Putting fresh, non-rechargeable lithium batteries in the refrigerator will not extend their shelf life; in fact, it is generally considered a myth and can potentially damage the batteries due to moisture condensation inside the fridge, so it's best to store them at room temperature in a cool, dry place”.Even though I did have moister-absorbent packets in the bag with the batteries, I must consider the fact that I may very well have caused these batteries to become weak by the way I had stored them.Therefore, I felt I should retract my earlier 3-Star review and offer my apologies for my ignorance to Ninmax. I feel must accept the blame for the poor load-test results as being due to incorrectly storing the batteries.I also must revert my product review to reflect 5-Stars, giving the fact I may have caused the poor results that I measured.Rich

25% failure rate! I purchased these batteries for my Schlage Encode Smart locks. These are wifi smart locks. It takes 4 AA batteries. Standard AA Alkaline batteries last about six months. I was hoping these batteries would last longer and about 75% do. Unfortunately, some don't and when one of the batteries fail they fail catastrophically without warning. Not what you need for a smart lock. When I use traditional batteries, the lock gives me ample warning. I do not recommend. Get the name brand Energizers if you want to have peach of mind