Amazon Basics 4-Pack Rechargeable AAA NiMH High-Capacity Batteries, 850 mAh, 1.2V, Low Self Discharge, Pre-Charged, Recharge up to 500x Times

Amazon Basics AAA Rechargeable Batteries (850 mAh, NiMH) — Tested Capacity, Performance & Matching Results I tested a full 12-pack of these AAA rechargeable NiMH batteries after a couple months of normal use in kids toys and various gadgets using a charge/discharge/charge analysis cycle, and the results were consistently strong, well above the rated capacity, with only one weaker outlier. Test Setup * ISDT N8 Series smart battery charger * Full analysis cycle (charge → discharge → recharge) * 0.3A charge/discharge rate * 0.90V cutoff voltage * Temperature range: 28°C – 33°C Measured Results * Average Capacity: 1,079 mAh * Highest: 1,171 mAh * Lowest: 964 mAh All cells exceeded the rated 850 mAh capacity, with most landing comfortably above 1,100 mAh, which is excellent performance for AAA NiMH batteries in this price range. Internal Resistance & Performance * Average: 193 mΩ * Most cells: 180–200 mΩ * One outlier: higher resistance, lowest capacity Lower internal resistance helps with performance meaning less voltage sag in high-drain devices like controllers, camera accessories, and other electronics. Cell Matching Results: After testing, I grouped the batteries by performance: * Top tier (7 cells): high capacity, closely matched * Mid tier (4 cells): slightly lower capacity but still good * 1 outlier: lower capacity and higher resistance This is typical for budget rechargeable batteries but still allows for multiple well-matched sets. What Stands Out * Consistently exceeds rated capacity * Good overall cell matching * Only one weak cell in the pack * Works well for both high-drain and everyday devices Final Thoughts These Amazon Basics AAA rechargeable batteries are a solid high-capacity option at a very reasonable price. With basic matching and rotation, they can deliver performance close to more expensive brands. The cons to this being that this is effort you generally don’t have to expend with more expensive premium Japanese made cells. However, if the cost savings are worth it to you these are a great value for the money and outperform a lot of the other Chinese-made budget cells. Some of whom wildly overstate their actual capacity. Rating: 4.5 / 5 (Can’t give half a star Amazon rating. Hence the five star rating) Please note: All NiMH rechargeable batteries have a break-in period when new. This is usually 3-5 full charge/discharge cycles (premium low self discharge Japanese-made cells generally only need one or two cycles). A good smart charger with a “refresh” or “activation” function can do this for you (it can take several hours) or it will naturally happen over time as you use them. This just means that capacity will increase after break-in so rechargeable batteries aren’t necessarily defective if they don’t meet their rated capacity straight out of the package. Why grouping similar performing batteries, if possible, makes a difference in real-world performance. When using rechargeable batteries in devices that use multiple batteries like controllers the load is shared by both batteries. Pairing a strong cell with a higher capacity and lower resistance with a weaker lower capacity higher resistance cell means the weaker cell is going to deplete and drop voltage faster. The stronger cell ends up shouldering more of the workload. This all means you get less time between recharges. None of this, of course, is strictly necessary, but if possible analyzing and grouping together similar performing batteries will increase their lifespans and give you more usage time between recharges. Once again not strictly necessary but something to note.

Great batteries! I use them all over my house for everything, they can hold a charge a long time and are always handy to have around. I don't have to waste money anymore buying the disposables, I have a bunch of the AAA and AA and I use them constantly on rotation. I've seen no leakage, they all charge very well with the Amazon Basics charger, and this is such a great deal when you figure how much money you're saving and how much better it is for the environment in the long run. A great investment to make.

Alright, battery buffs and gadget gurus, gather 'round! We're diving into the electrifying world of the Amazon Basics 24-Pack Rechargeable AAA NiMH High-Capacity Batteries. These little powerhouses are here to juice up your devices and keep them running like a well-oiled machine—only, you know, with electrons instead of oil. Let’s start with the basics (pun absolutely intended). You get 24 AAA batteries in this pack. That’s right, 24! It’s like having your very own mini power plant. Whether you’re powering up your TV remote, wireless mouse, or that ancient alarm clock you keep around for nostalgia, these batteries have got you covered. With a solid 850 mAh capacity, these babies are perfect for both high-drain devices (hello, gaming controllers) and low-drain ones (looking at you, remotes). They’re versatile, like the Swiss Army knives of the battery world. Whatever you need powered, these guys are up for the job. Now, let’s talk rechargeability. These batteries can be recharged up to 500 times! That’s right—500! Imagine all the disposable batteries you won’t have to buy, which means more money in your pocket and fewer batteries in the landfill. Mother Earth will thank you, and so will your wallet. Delivered pre-charged, these batteries are ready to roll straight out of the box. No need to wait around for a full charge—just pop them in your device, and you’re good to go. It’s like instant gratification in battery form. Worried about self-discharge? Don’t be. These batteries maintain 80% of their capacity for up to 24 months. So, even if you forget about them in a drawer somewhere (we’ve all been there), they’ll still be ready to power up when you find them again. It’s like they’ve got a superpower—staying strong even when left alone. And let’s not forget the frustration-free packaging. No more wrestling with plastic clamshells or needing a chainsaw to open the box. It’s easy to use and even easier to store, so your battery collection will stay neat and tidy. In short, these Amazon Basics Rechargeable AAA Batteries are the ultimate energy sidekicks. With high capacity, long life, and eco-friendly rechargeability, they’re the MVPs of the battery world. So, go ahead—power up, play on, and let these little dynamos keep your devices running smoothly, one recharge at a time!

As a tech enthusiast and a frequent user of various battery-powered devices, I've had the opportunity to test the Amazon Basics 16-Pack Rechargeable AAA NiMH High-Capacity Batteries (850 mAh). Here's my detailed review, based on my personal experience and observations. Pros: + Wide Compatibility: These batteries are compatible with a broad range of devices, from high to low drain, making them versatile for different uses around the house. + Pre-Charged Convenience: The batteries arrive pre-charged, ready for immediate use. This feature is incredibly convenient, eliminating the need for initial charging. + Rechargeable and Eco-Friendly: With the ability to be recharged up to 500 times with minimal power loss, these batteries are not only cost-effective but also environmentally friendly. + Low Self-Discharge Rate: The batteries maintain 80% capacity for up to 24 months, allowing for long-term storage without significant power loss. + Frustration-Free Packaging: The packaging is easy to open and access the batteries without any hassle or excessive waste. Cons: - Inconsistent Lifespan: Some users have reported that the batteries' lifespan falls short of expectations. The batteries seem to provide fewer recharge cycles than claimed, with some users noting a significant decline in performance after about 120 cycles. - Variable Pre-Charge Levels: Although the batteries are supposed to come pre-charged, some users have reported that they needed to charge them for several hours before reaching full capacity. - Potential Fit Issues: The positive end of these batteries is slightly smaller than standard batteries, which may cause fit issues in some devices. - Voltage Limitations: These batteries have a voltage of 1.2V, which may not be compatible with all devices. Some devices may inaccurately indicate that the battery is low or half-charged, even when it's fully charged. - Inconsistent Performance: Some users have reported a decline in performance over time, with batteries needing to be swapped out more frequently after a few months of use. - Leakage Issues: A few users have reported leakage issues, with batteries discharging a white powdery substance when stored for extended periods. In conclusion, the Amazon Basics 16-Pack Rechargeable AAA NiMH High-Capacity Batteries (850 mAh) offer a mix of convenience and performance, with a few potential drawbacks. They're a solid choice for those seeking an environmentally friendly, cost-effective solution for powering their devices. However, users should be aware of the potential for inconsistent performance and lifespan, and ensure they're suitable for their specific devices and usage patterns.

pretty good batteries, just like the other brands after a year they start getting weaker and don't hold as much of a charge.

When I ordered the 16 pack AAA batteries I really didn't realize that I had so many different devices/gadgets that used this small size battery. But, there it is in my picture. From a DVR controller, graphing calculator, bike taillight, walkie-talkie, TV remote, analog to digital converter box remote, to a Roku remote. Not included in the photo were a flashlight, kitchen timer, electrical toothbrush, wireless mouse, moustache shaver, etc.....and the list goes on and on. As you can see I've always used the Amazon Basics brand. Amazon should compensate me for giving them free advertisement. LOL. Its quality is superb and hasn't given me any trouble at all. There is no issues with battery leakage and keeps its battery charged for quite some time. It has saved me countless trips to the store just to get fresh new batteries and literally saved me tons of money not having to buy so many. And, I might also add, Mother Earth is thanking me for being less of a polluter by having less batteries in the landfills. I would recommend this brand, Amazon Basics, to everyone. It is also highly recommended to buy a reputable battery charger that can charge both AAs and AAAs like my charger on the bottom right of the photo. It is very useful and stops charging when it is done so it won't overheat.

These AAA’s work great. No problems recharging. I’ve had a pair in a Roku remote for nearly a year. I use them to power a wireless mouse and keyboard for about the same time. When using in my headlamps they last for hours without needing a charge. Unlike the AA’s, these are the same size as a typical non-rechargeable AAA. The AA’s are slightly wider than your typical AA. They put out 1.2v rather than the standard 1.5v so some equipment may not work with them, but I haven’t ran into that issue. I would buy them again if I need to. They absolutely save money in the long run

I've purchased the rechargable AA and haven't been disappointed. They are just as good as the higher priced rechargable and the battery life is excellent.

Recently purchased the Amazon Basics 12-Pack Rechargeable AAA NiMH Performance Batteries, and I must say, I am thoroughly impressed with their performance and value for money. These batteries have become an essential part of my household, and here's why: - Love the long-Lasting Power: Has a 800 mAh capacity of these batteries provides ample power for a variety of devices. Whether I'm using them in remote controls, wireless mice, or small electronic gadgets, I am getting consistent reliable and long-lasting performance. - Quick Recharge: These batteries recharge quickly, which is a huge convenience. I appreciate not having to wait around for hours to get my devices up and running again. It's a great time-saver! - Durable and Reliable: For the most part, as brand name Amazon Basics I have kinda been skeptical, but the quality, with these batteries are great Built to last and can withstand multiple charge cycles without losing their capacity or efficiency. This saves me money in the long run and reduces waste. - Environmentally Friendly: I love that I can reduce my environmental footprint by using rechargeable batteries. It's a small but meaningful step towards sustainability, and these batteries allow me to do that without sacrificing performance. Hey, at least I am trying to do my little bit for the planet. - Economical Choice: 12-pack is a fantastic deal for the price. Considering the quality and longevity of these batteries, they are an economical choice compared to disposable ones. I've saved a significant amount of money since making the switch. Got high hopes for Amazon Basics 12-Pack Rechargeable AAA NiMH Performance Batteries . I highly recommend these batteries to anyone in need of AAA rechargeables – they won't disappoint! Off now, to look at their AA offerings.

Son muy buenas, su relación calidad precio valen la pena. Se recargan rápido.

Good price

Pilas buenísimas, funcionan perfecto en mi cargador marca "Energizer" y la batería les dura bastante, las compré para mi control de videojuegos y demás controles del hogar, les dura meses la carga.

I bought these rechargeable AA batteries specifically to use as backup power in my Zoom F8n Pro field recorder. My recorder is normally powered from a V-mount battery via a Hirose cable, but having these installed means the recorder stays powered while I swap V-mount batteries, so there's no interruption to recordings or timecode. They've been completely reliable in that role. The recorder seamlessly switches to the internal AA batteries during a battery change and then back to external power once the new V-mount is connected. It's a simple setup, but one that's saved me from having to stop and restart recordings. The batteries hold their charge well and have performed consistently every time I've needed them. Although they spend most of their time sitting inside the recorder as a backup power source, they've always had enough capacity to do exactly what's required when the external power is disconnected. I've also found them to recharge without any issues, and after repeated charge cycles they haven't shown any noticeable drop in performance. If you're using a Zoom F8n Pro or any other recorder that accepts AA batteries alongside external power, these are an excellent choice. They've given me confidence that I can swap my V-mount batteries during a shoot without risking an unexpected shutdown, and for that reason alone they've been well worth buying.