AmazonBasics AAA Rechargeable Batteries (4-Pack) Pre-charged - Packaging May Vary
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- Pack of 4 AAA rechargeable batteries
- 1,000 recharge cycles
- Capacity: 800mAh (milliamp-hour) Minimum 750mAh
- Pre-Charged using Solar Energy
- Made in Japan
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From the manufacturer
AmazonBasics AAA Rechargeable Batteries
Want rechargeable batteries that truly last? The AmazonBasics Ni-MH Pre-Charged Rechargeable Batteries take advantage of cutting edge, low self-discharge technology that is just one of the many perks of these high-quality, reliable batteries.
Ready When They Arrive
AmazonBasics Ni-MH Pre-Charged Rechargeable Batteries come ready to go out of the box. Put them in your device and go.
Built For The Cold
When you need batteries that perform well even in cold temperatures, these batteries maintain high power in low temps. They’re great for ski resorts and winter activities.
- Charge hundreds of times with minimal power or capacity loss
- Stay 80% charged even after a full year of non-use and are still fully rechargeable after 3 years
- Ready to use out of the box
The maximum amount of charge a battery will hold is called its "permanent capacity." Some batteries lose permanent capacity after storage which means reduced run time. The AmazonBasics Ni-MH Rechargeable Batteries don’t suffer from this problem, so they can be fully charged again and again.
Go Full Throttle
Not only are AmazonBasics able to be used again and again, they work well with a variety of devices. Comparable to the power of single use alkaline cells, AmazonBasics perform especially well when used to power high-drain devices, such as digital cameras, electric toothbrushes, flashlights etc.
Batteries That Beam
You want your flashlight to be ready when you need it. Flashlights using ordinary batteries can shine dimly after sitting unused for too long. AmazonBasics Ni-MH Rechargeable Batteries shine bright even after storage. AmazonBasics are perfect for high-power, high-drain devices.
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|Battery Cell Type||NiMh||NiMh||NiMh||NiMh||NiMh||NiMh|
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AmazonBasics brings you everyday items at a great value
Top customer reviews
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I measured the capacities of those AmazonBasics AAA batteries, using my La Crosse BC1000 charger. Here are my findings:
- Right out of the package, the average remaining charge is 562mAh, or 70% of the rated '800mAh' capacity.
- After one recharge/discharge cycle, the average capacity jumped to 797mAh.
- After another 2-3 more cycles, the average capacity leveled off at 821mAh
The above behavior is consistent with my previous test results for original (1000-cycle) eneloop,2nd-gen (1500-cycle) eneloop and 3rd-gen (1800-cycle) eneloop cells. Note that just as in this case with AmazonBasics cells, all eneloop cells are charged to around 70% when they left factory.
Based on electrical characteristics, I believe that those white AmazonBasics cells are indeed rebranded Sanyo eneloop cells. But it is impossible to tell whether they are in fact 1st- or 2nd-generation eneloop. This is because to the end-user, there are no measureable performance differences between 1st, 2nd or even 3rd-generation eneloop cells beside their cycle life claims.
Because of the '1000-cycle' claim, most people would jump to the conclusion that white AmazonBasics cells are equivalent to 1st-gen Sanyo eneloop. My closer examination, however, suggested that they are more likely to be rebranded SECOND-generation eneloop instead.
Please refer to the picture I uploaded to 'Customer Images' section. Look closely at the positive terminals of those three types of batteries, and you'll notice the difference in their so-called 'vent holes' (the name is misleading because those openings are not actually used for venting):
In the case of AAA cells:
- First-gen eneloop AAA cell has triangular-shaped vent holes
- Second-gen eneloop AAA has vent holes with rounded tops
- White AmazonBasics AAA has vent holes with rounded tops
In the case of AA cells:
- First-gen eneloop AA cell has triangular-shaped vent holes
- Second-gen eneloop AA has no vent holes
- White AmazonBasics AA has no vent holes
Therefore based on their mechanical aspects, I have to say those white AmazonBasics cells are most likely rebranded 2nd-gen Sanyo eneloop cells.
Why would Amazon intentionally sell rebranded 1500-cycle eneloop cells as just 1000-cycle? The answer is Price Differentiation. Manufacturers often de-spec a product when it is sold under different brand at a lower price. Otherwise it will erode the market for their higher-priced brand.
What if I'm wrong and those AmazonBasics cells are 'only' 1000 cycles? Well, you could find out the difference in... TEN years. So for now, just pick whichever brand is on sale and be happy.
Amazon policy disallows links to sites outside of Amazon. The best I can do to direct you to said article is this: Do a google search for the following exactly as I have typed it, including quotes:
"The Best Rechargeable AA and AAA Batteries" site:thewirecutter.com
As of the time I am writing this review, the article is the first search result from Google. If you are using other search engines, you will likely have to leave off the: site:thewirecutter.com
Just use the title of the article and make sure you land on thewirecutter.com web site.
I am against any compensation via discounts, coupons, or any other cost break for giving reviews. This review is my true experience.
UPDATE: I ordered eight more last week and those batteries are black (as pictured). The black ones I just got are also labeled made in Japan. So for whatever reason some may be white and others black but both, at least the ones I received, say "made in Japan" on them.