Amazon Basics 16-Pack Rechargeable AA NiMH Batteries, 2000 mAh, 1.2V, Recharge up to 1000x Times, Pre-Charged

These rechargeable AA batteries are a great value. They arrived fully charged and ready to use right out of the package, which was a nice surprise. I put them straight into service and they performed exactly as expected. They hold a charge well, recharge reliably, and have been consistent across the whole pack. For the price and convenience, these are an easy replacement for disposable batteries. I’ll definitely be buying these again.

Love these amazon batteries! I use them for all of my decorations and remotes around the house. My son uses them for the oculus remotes and his xbox controllers. They have many usues and a long life span. Oh my daughter uses them for her Canon Camera too and loves them. I have one of those first aid kit looking things that holds all the different types of batteries and I have them full of these, great batteries for the cost I could compare them to Energizer Lithium Ion batteries!

I have used rechargeable batteries for decades (since the early days when only Nicads were available). Other brands have performed well but these seem to be right up there with Eneloops as far as quality, performance and reliability. I can’t help but wonder if Amazon didn’t cut a deal to put their Name and rapper on them. What ever the case, I am very happy with Amazon basics and will be purchasing more. I put a lot of hours of use on my rechargeable batteries and these have not let me down. Not one bad cell out of 48 purchased so far. Very impressed. I recommend slow charging for reliability and longevity. Here is a little side note. Sometimes automatic chargers will give a bad cell indication. This is usually due to one or more of the cells having zero voltage from being run down until dead. This is why I keep a couple of old fashioned manual timer chargers around. If I put the dead (zero volt) cells in the timer chargers first to force feed a charge to them for a minute or so, then put them in the auto chargers, problem solved. They will now charge without any problems. I have to wonder how many perfectly good batteries have been thrown away due to people not knowing any better. Hope this info helps and highly recommend these batteries.

Have to wear battery operated gloves. One-day use and regular batteries run out. This is a life and pocket saver .

So far they work pretty good. They last in my remote and other motion sensor lights at least a month before needing to be charged. I have had some strange issues charging when I put them in the Amazon charger and the light will blink at the normal correct speed and then all of a sudden it will blink fast letting you know it’s not charging properly. I have to take out and put in the batteries back in the charger to reset them so they actually charge.

Initial Impressions: The batteries arrived nicely packaged in a cardboard box, with six, individually wrapped packages of four cells each. My testing process for new cells is pretty extensive and these Amazon Basic’s pre-charged cells, at least on the initial round of testing prove to be of very good quality. All 24 cells were weighed for consistency. All of the cells measured in at 27 grams, plus or minus 0.03 grams indicating that the manufacturing quality for the active material is highly consistent. The 24 cells then were put through an initial capacity discharge test utilizing an ISDT 24 channel charger. 20 of the 24 cells showed an initial capacity ranging from 1890 to 1920 mAH, and four cells showed an initial capacity of between 1310 and 1400 mAH. The cells are rated by Amazon as 2000 mAH cells, so the 20 cells came pre-charged at 95% full. I assume that the four outliers were not charged fully at the factory. All 24 cells were once again placed in the ISDT charger, this time, set for activation charge, where the cells are charged and discharged three times in succession to distribute the electrolyte equally within the cell, and fully charge the cell to its maximum capacity. All 24 cells charged to beyond the Amazon rated capacity with the average capacity at 2130 mAH. The fourth round of testing involved a torture test utilizing a West Mountain Radio Computerized Battery Analyzer. Each battery underwent a mission profile test, at constant current, until the output voltage dropped to cutoff. Again, each battery, under constant load, exhibited a measured capacity of between 1920 and 1975 mAH. The fifth round of testing was a random selection of four cells to be put back on the CBA and a discharge test ran, again at constant current, plotting the results of all four cells on the same graph. All four cells had a discharge profile that is extremely consistent, and flat across the entire time until the cell was exhausted. The sixth round involves a self-discharge test, again four random cells were selected and were measured for their open-circuit voltage. After 48 hours, these same cells were measured again, and their open-circuit voltage compared. The self-discharge was again, very consistent, and was on average 0.03V from the initial measurement. While 48 hours is a very short period to test for self-discharge over time, it’s encouraging to see that there was little in the way of voltage loss. I set two random cells aside, that will be measured at 30, 60, 90, and 180 days to see if this low discharge is maintained over an extended period of time. At this point, after the testing performed, I would rate these cells as excellent quality, and an excellent price point. Most of my cells are Eneloop, and I was curious to see how the Amazon cells would perform compared to the Eneloop and the Ikea Ladda cells, which are the same. I’ve been using rechargeable cells since the NiCd days, as there is something inherently wrong with the idea of buying something only to toss it in the trash a few days or weeks later. Add to that all Alkaline batteries will eventually leak and destroy what they are installed in, I am happy to see that there is a lower cost, quality cell available. Only time will tell if they are truly an equal to the Eneloop brand of battery, most of mine are still going strong after almost 15 years of pretty demanding service.

I’ve been so impressed with these rechargeable batteries! They hold a charge incredibly well, and I can use them for days in high-use devices before they need to be recharged, and the quick recharge time makes them even more convenient. The upfront cost is comparable to what I’d spend on a couple packs of regular batteries, but because I can reuse them again and again, the long-term savings are huge. Plus, it feels good knowing I’m cutting down on waste and making a more environmentally friendly choice.

They're cheap and they do what's on the tin. My only gripes are these are ever so slightly thicker than almost every other AA I've used. So in some RARE cases they'll get stuck in a toy or just won't fit. They also don't seem to last as long as normal alkaline or name brand rechargeables. But for the price it's still better. IF you have way more than you need and a good storage solution (I like the tall skinny ones where you drop them in the top and they dispense one at a time). You'll be golden!