As a professional reviewer, I've had the opportunity to put the Amazon Basics 16-Pack Rechargeable AA NiMH High-Capacity Batteries (2400 mAh) through their paces. My findings are based on rigorous testing and comparison with other brands in the market.
Upon unboxing, my initial impression was that these batteries are strikingly similar to the Sanyo eneloop XX batteries, both in appearance and specifications. This led me to believe that they might be rebranded versions of the same. To confirm my suspicion, I embarked on a series of tests using my La Crosse BC1000 Battery Charger/Analyzer.
Here's what I found:
Pros:
+ High Capacity: The batteries delivered an average capacity of 2555mAh after a few recharge/discharge cycles, exceeding the rated 2400mAh. This is a testament to their high-quality performance.
+ Quality Control: The tight spread between 2510 and 2610mAh across the batteries indicates excellent quality control.
+ Value for Money: At the time of writing, an 8-pack of Amazon High-Capacity AA batteries costs less than a 4-pack of eneloop XX batteries, making them a great bargain.
+ Long-Term Performance: After 5 months in storage, the batteries retained 85% of their original capacity, outperforming the Sanyo XX batteries in my previous tests.
Cons:
- Size: These batteries are slightly fatter than typical AA batteries, which might cause fitting issues in devices with extremely tight battery compartments.
- Lifespan: While they perform excellently in the short term, these batteries seem to lose their ability to hold charge after a few years. If you're a heavy user, be prepared to replace them after 2-3 years.
- Country of Origin: Some users have reported a drop in quality in batteries made in China compared to those made in Japan.
In conclusion, the Amazon Basics 16-Pack Rechargeable AA NiMH High-Capacity Batteries (2400 mAh) offer excellent performance and value for money. However, their slightly larger size and shorter lifespan compared to other brands might be a deal-breaker for some users.
Remember, the best battery for you depends on your specific needs and the devices you intend to use them in. Always consider these factors when making your purchase decision.
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This product has sustainability features recognized by trusted certifications.
Carbon impact
Carbon emissions from the lifecycle of this product were reduced compared to similar products or previous models.
As certified by
Reducing CO2 The Reducing CO2 label applies to products certified by the Carbon Trust, that are lowering their carbon emissions year after year for the full lifecycle of the product. The Carbon Trust was formed in 2001 and introduced the world’s first carbon label in 2007. It produces its certifications to global leading and independently verified standards. The Carbon Trust has a mission to accelerate the move to a sustainable, low carbon economy.
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Reducing CO2 products reduce their carbon footprint year after year. Certified by the Carbon Trust.
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Reducing CO2 products reduce their carbon footprint year after year. Certified by the Carbon Trust.
From the manufacturer
Amazon Basics AA Rechargeable, High Performance Batteries
Compare Battery Types
 Rechargeable, Performance |  Rechargeable, Standard |  Alkaline |  Industrial Alkaline |  Lithium |  Hearing Aid | |
|
Customer Reviews
|
119,930
|
138,972
|
381,756
|
8,766
|
896
|
26,461
|
|
Price
| $34.67 | $23.94 | $16.29 | $41.79 | $30.07 | $18.69 |
|
Best Used For
| Multi-use, high power devices | Multi-use, everyday devices | Single-use, everyday devices | Single-use, heavy use devices | Single-use, unique devices | Single-use, for hearing aids |
|
Battery Sizes
| AAA, AA, C, D | AAA, AA | AAAA, AAA, AA, C, D, 9V, 23A | AAA, AA | 9V, CR, & Coin Cell Series | 10, 13, 312, 675 |
|
Shelf Life
| 5 year or once recharged 500x | 5 year or once recharged 1000x | 3-10 year, depending on size | 5 year | 8-10 year, depending on size | 4 year |
|
Recharge Rate
| 500x | 1,000x | - | - | - | - |
|
How To Dispose
| Any authorized recycle center | Any authorized recycle center | Any authorized recycle center | Any authorized recycle center | Any authorized recycle center | Any authorized recycle center |
|
Capacity (mAh)
| 2,400-5,000, depending on size | 800-2,000, depending on size | - | - | - | - |
|
Voltage (V)
| 1.2-8.4V, depending on size | 1.2V | 1.5-12V, depending on size | 1.5V | 3V-9V, depending on size | 1.45V |
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This Item  Amazon Basics 12-Pack Rechargeable AA NiMH High-Capacity Batteries, 2400 mAh, Recharge up to 400x Times, Pre-Charged |  |  |  |  |  | |
| Price | $21.78 | $9.99 | $22.99 | -9% $19.99 Typical: $21.89 | $13.99 | $12.99 |
| Delivery | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 |
| Customer Ratings | ||||||
| Value for money | ||||||
| Longevity | ||||||
| Remote Control | ||||||
| Battery life | ||||||
| Sold By | Amazon.com | ZS Direct | eLightBulb | ZS Direct | JIAWEN Electronic | JIAWEN Electronic |
| capacity | 2400 milliampere hour | 2400 milliamp hours | 2400 milliamp hours | 2800 milliampere hour | 800 milliamp hours | 600 milliamp hours |
| battery quantity | 12 aa | 8 aa | 12 aa | — | 12 aa | 12 aa |
| connector type | wireless | — | wireless | wireless | — | — |
| voltage | 1.2 volts | 1.2 volts | 1.2 volts | 1.2 volts | 1.2 volts | 1.2 volts |
| reusability | Rechargeable | Rechargeable | Rechargeable | Rechargeable | Rechargeable | Rechargeable |
| compatible devices | Toy, Camera, Remote | Mouse, Keyboard, Remotes | Solar, Mouse, Toy, Controller, Torch, Camera, Remotes | Mouse, Keyboard, Remotes | Solar | Solar, Radio, Torch, Remotes |
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Sustainability features
This product has sustainability features recognized by trusted certifications.
Carbon impact
Carbon emissions from the lifecycle of this product were reduced compared to similar products or previous models.
As certified by
Reducing CO2 The Reducing CO2 label applies to products certified by the Carbon Trust, that are lowering their carbon emissions year after year for the full lifecycle of the product. The Carbon Trust was formed in 2001 and introduced the world’s first carbon label in 2007. It produces its certifications to global leading and independently verified standards. The Carbon Trust has a mission to accelerate the move to a sustainable, low carbon economy.
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Reviews with images
Identical to the Sanyo eneloop XX - at much lower cost
I have previously tested the AmazonBasics AA Pre-Charged Rechargeable Batteries (in white wrappers), and concluded that they are just rebranded Sanyo eneloop AA Batteries. When I first heard about the new AmazonBasics High-Capacity Pre-Charged Rechargeable Batteries, my immediate suspicion is that those are rebranded Sanyo eneloop XX batteries. That's why I purchased this product for testing, just to satisfy my own curiosity.I measured a set of those AmazonBasics 'high-capacity' AA batteries, using my La Crosse BC1000 Battery Charger/Analyzer. Here are my findings:- Right out of the box, the average remaining charge was 1204mAh, or 48% of the rated 2500mAh capacity. Date code on them says '2014-02', but just like other eneloop batteries, they were not fully charged when then left factory.- After just one recharge/discharge cycle, the average capacity jumped to 2547mAh.- After another two more recharge/discharge cycles, the average capacity settled at 2555mAh. The spread is very tight between 2510 and 2610mAh, which indicates good quality control.The above behavior is nearly identical to that of the Sanyo XX cell, which I have previously tested in 2011.Mechanically, the AmazonBasics high-capacity cells appear identical to the Sanyo XX. Refer to the photo I uploaded to the 'Customer Images' section, and you will see that they have exactly the same shape for positive terminals, same texture on their wrappers, even down to the same 'vent hole' design.I should note that the Duracell 'Ion Core' AA Rechargeable Batteries also have identical electrical and mechanical characteristic as the Sanyo XX and AmazonBasics High-Capacity batteries. The Duracell batteries are marketed as just 2400mAh, even though they were tested to be over 2500mAh in capacity. I believe this is done for price differentiation purpose.Bottom Line:As of this writing, you can get an 8-pack of Amazon High-Capacity AA batteries for less cost than a 4-pack of eneloop XX batteries. So obviously the AmazonBasics version is a great bargain. My advice is to grab them - before Amazon gets greedy and jacks up the price.One important note:The AmazonBasic High-Capacity AA (or Sanyo XX, or Duracell Ion Core) is fatter than a normal-capacity NiMH AA cell, which itself is fatter than a typical alkaline AA cell. So it may not fit if your appliance has extremely tight battery compartment.[Update on Dec 10, 2014]Long-term self-discharge data: Tested one pair of AmazonBasics AA high-capacity batteries after 5 months in storage. The average remaining charge is 2175mAh, or 85% of the original capacity. This is even better than my previous 5-month test result for Sanyo XX batteries which showed 2040mAh, or 78% of original capacity.
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