Amazon Basics 8-Pack Rechargeable AA NiMH High-Capacity Batteries, 2400 mAh, 1.2V, Recharge up to 400x Times, Pre-Charged

I bought these rechargeable batteries for one reason: **Christmas lights.** Hours and hours of Christmas lights. Days, even. Weeks, if necessary. I wanted illumination so steady and so relentless that even Santa would squint as he flew over my street. And let me tell you, these batteries DELIVER. The moment I charged them up, I swear I heard a faint choir of angels (possibly my imagination, possibly the fairy lights themselves humming with excitement). I loaded them into my lights and… BOOM. The glow. The shimmer. The sheer *luminosity* of it all. My house didn’t just sparkle, it achieved a level of brightness that could guide ships into harbour. I wrapped the first set around my little red-berry-bearing tree. Hours passed. Still glowing. Night turned into morning. Still glowing. Neighbourhood dogs barked at the suspiciously constant light. STILL. GLOWING. Then I used them for the fairy lights on my door cover. Same story. Hours and hours of uninterrupted festive brilliance. Meanwhile, my neighbours frantically battled with plug sockets, overloaded extension leads, and timers that only seem to work when Mercury is in retrograde. Not me. Oh no. I stroll past my lights like a smug festive wizard, knowing full well that my energy supply is infinite. I have more rechargeable batteries. SO many more. I have become the Christmas equivalent of someone hoarding gold bullion in a bunker. The neighbours keep asking, “How are yours STILL on?” I just smile mysteriously, like I’ve made a deal with the Elf King. But really, it’s these batteries. These beautiful, unstoppable, long-lasting, Christmas-saving batteries. If these things ever go out, it’ll be because I took them out myself, not because they gave up. These batteries don’t give up. They PUSH THROUGH. They WORK OVERTIME. They carry the entire festive season on their tiny cylindrical shoulders. Buy them. Charge them. Illuminate your life like a glorious holiday beacon. **Hours and hours of Christmas lights? Try days**

These rechargeable batteries usually recharge well and usually discharge smoothly when operating an electrical appliance such as a portable radio. I have had only one of these batteries which eventually began to fail. Progressively it became harder and harder to give this battery a full charge so when in service it could not last as long as the other batteries I was using in a set of four to run my Sony DAB/FM portable radio. In the end I had to stop using this individual battery. In all fairness, this battery did perform properly at the start and it took (maybe) 2 years before it started to struggle. So, the factory would not be able to tell that this particular battery would expire sooner than expected. When items are made in batches at express speed, occasionally this may happen. It would not be justified to condemn the manufacturer. I am happy to continue buying this item.

The Amazon Basics 16 Pack Rechargeable AA NiMH High Capacity Batteries, 2400 mAh, have been a dependable choice for us so far. In terms of performance, they have done exactly what we need them to do. They arrived pre charged, charged up again without issue, and have successfully held their charge through repeated use. We have recharged them many times, and they continue to perform consistently. For everyday household devices like remotes, wireless accessories, and small electronics, they have been reliable and durable. Compared to many other well known brands, the pricing is better. Right now, this set works out to roughly 1 € per battery, which is not unreasonable for 2400 mAh rechargeables. I still feel they sit about 15 to 20 percent higher than they ideally should. Sustainable products often appeal to people who care about reducing waste, though the upfront cost can be a real barrier for many households. More competitive pricing would make it easier for families to justify switching from disposable batteries, even if the long term savings are clear. Build quality feels solid, and we have not experienced early failures or noticeable degradation beyond what you would normally expect over time. The 2400 mAh capacity is strong for higher drain devices, and they have handled regular use well. Overall, these are dependable rechargeable batteries that perform as advertised. With slightly sharper pricing, they would be an even stronger value. As it stands, I would still buy them again if needed.

Amazon excells again. Bought a charger and needed some batteries so went for these. They charge fast and last a decent amount of time. That's it really. Buy Amazon basics if you want cheap well made items.

I decided to switch properly to rechargeable batteries after realising how many disposables we were getting through every year. Between Xbox controllers, remotes, wireless mouse, children’s toys and the odd torch during power cuts, it was adding up. I went for this 12-pack of Amazon Basics 2400 mAh AAs because the price per battery was very reasonable, especially compared to big-name brands. The fact they arrive pre-charged is genuinely useful. I was able to put them straight into a controller and a bedside lamp without waiting around for a full charge first. That convenience makes a difference. In terms of compatibility, they’ve worked perfectly in everything I’ve tried — standard AA sizing means they slot straight into controllers, torches, fairy lights, clocks and cameras without any fitting issues. They sit snugly in the battery compartments and make proper contact first time. Performance has been consistently strong. In higher-drain devices like game controllers and LED torches, they hold up well. Brightness in torches and battery-powered lights has been steady and comparable to good disposable batteries — no dim, weak glow or early fade. Even as they start to run lower, the power output feels stable rather than dropping off suddenly. The 2400 mAh capacity is noticeable. They last longer than older rechargeables I’ve owned, especially in devices that get regular use. They also hold charge well when sitting unused. I’ve had a few stored for a couple of weeks and they still had plenty of power left. As for weight, they feel solid but not overly heavy. In hand they have that reassuring density you’d expect from a decent rechargeable battery, but they don’t make controllers or smaller devices feel bulky or unbalanced. Long term, the value is where these really make sense. Being able to recharge them hundreds of times will easily outweigh the initial cost, and it’s far better than constantly throwing away single-use batteries. Overall, reliable, widely compatible, steady brightness output and excellent value for money. These have become my default choice and I wouldn’t go back to disposables now.

2362 mah. Good enough...

These rechargeable batteries are good for low power devices like TV remotes, but they don’t hold charge very well if you use them in anything else. They drain quite fast so I would recommend maybe a more expensive option. They are fine for what we use them for but they’re not spectacular.

Fine, quick delivery. Reasonable price

コスパがいいので使えなくなってもなっても気にならない。色々使いまわしてます。

The battery seems okay, but the size for this AA battery, not sure had it got 1mm extra bulk, it seems to not fit normal UM-3 slot. I had to massage it in. Will see.

Ho scelto queste batterie perché avevo bisogno di una soluzione economica e ricaricabile per telecomandi, giocattoli e dispositivi elettronici domestici. Prima impressione Appena tolte dalla confezione, le batterie risultano compatte e ben finite, con scritte chiare che indicano capacità e tensione. Essendo precaricate, sono subito pronte all’uso, il che è comodo per chi non vuole aspettare la prima ricarica. Uso nella vita quotidiana Le utilizzo in telecomandi, mouse wireless e piccoli giocattoli. La durata è buona, e il fatto che possano essere ricaricate fino a 400 volte le rende un investimento conveniente nel tempo. La capacità di 2400 mAh permette di avere prestazioni stabili anche con dispositivi che richiedono corrente moderata. Cosa funziona bene Precaricate e pronte all’uso, comode subito. Alta capacità (2400 mAh) per lunga durata nei dispositivi quotidiani. Ricaricabili fino a 400 volte, molto conveniente nel tempo. Funzionano bene in dispositivi che richiedono corrente costante. Buon rapporto qualità-prezzo per una confezione da 8 batterie. Cosa convince meno Non adatte per dispositivi ad alto consumo continuo (come fotocamere professionali o flash), dove durano meno. Richiedono un caricatore NiMH appropriato per ricariche ottimali. Essendo AA, limitate a dispositivi compatibili con questa misura standard. Conclusione Le batterie ricaricabili Amazon Basics AA sono una scelta pratica ed economica per uso domestico, perfette per telecomandi, giocattoli e piccoli apparecchi elettronici. Offrono lunga durata e facilità d’uso, ma non sono ideali per dispositivi ad altissimo consumo.

Amazon Basics AA Rechargeable Batteries (2400 mAh) – Real Capacity Test Results I ran a full analysis cycle on 8 cells using an ISDT N8-series smart charger at a 0.5A charge/discharge rate. Unfortunately 4 of the 12 cells were accidentally thrown out with the broken toy they were in so I couldn’t test those. Here are the actual measured results after initial break-in and a few months of normal use in kids toys and various gadgets: Capacity Results (mAh): - 3001 - 2687 - 3001 - 2658 - 2639 - 2625 - 2649 - 2698 Average Capacity: 2700 mAh Rated Capacity: 2400 mAh Internal Resistance (mΩ): - Range: 124 mΩ – 200 mΩ Key Takeaways: • All 8 cells tested at or above their rated 2400 mAh capacity • Two cells measured around 3000 mAh, which is significantly above spec (likely inflated slightly by the lower 0.5A test rate, but still impressive) • Most cells clustered tightly between 2625–2700 mAh, showing good consistency • Internal resistance varied from 124–200 mΩ, which is decent but not premium-tier low What this means for real-world use: These are solid mid-to-high performance NiMH cells: - Great for moderate to high-drain devices (controllers, cameras, etc.) - Not quite as consistent as premium Japanese made brands, but very close considering the price - One higher-resistance cell (~200 mΩ) may perform slightly worse under heavy load and prematurely wear out. Lower resistance means less voltage sag under heavy load. Pros: - Exceeds rated capacity across the board - Good consistency between most cells - Good value for the price Cons: - Internal resistance spread is noticeable - Not all cells are perfectly matched for High-drain use Final Verdict: 4.5 / 5 (Rated five stars because you can’t give a half star rating, close enough however): For the price, these perform above expectations. If you’re willing to match cells based on performance (capacity + internal resistance), you can get excellent results comparable to more expensive brands. Testing Note: Results were obtained using a 0.5A analysis cycle, which can slightly inflate capacity readings compared to higher-drain real-world use. Not an appreciable difference however in actual usage. Testing Equipment - ISDT N8 Series Smart Charger Please note: Don’t be disappointed if brand new cells don’t meet their rated capacity out of the box. NimH rechargeable batteries have a break-in period when new. This is usually 3-5 full charge/discharge cycles (for premium Japanese-made cells around 2 charge/discharge cycles). A good smart charger can do this for you. It can take several hours or they will break-in themselves over time with normal usage but their performance will increase after break-in.

Ok, ale rzeczywiście średnica baterii trochę większa (grubsza) niż standard, więc nie wszędzie będą pasować.