Amazon Fundamentals Excessive Capability Rechargeable AA 2400mAh overview: Nice worth


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Value is without doubt one of the essential promoting factors of the Amazon Fundamentals Excessive Capability Rechargeable AA 2400mAh batteries. They provide nice worth, significantly when purchased in bigger pack sizes. In my assessments, these batteries frequently delivered excessive capacities, however they don’t maintain as a lot cost as rivals models. As well as, Amazon doesn’t state detailed lifetime cost info.


  • Nice worth
  • Excessive capability in assessments


  • Retains much less cost over a yr than competitors

  • KindThese are AA NiMH batteries (rechargeable)

  • CyclesAmazon goes no additional than stating that these batteries could be charged “lots of of occasions”


Amazon definitely doesn’t fiddle with product names: Amazon Fundamentals Excessive Capability Rechargeable AA 2400mAh tells you the whole lot it is advisable to know.

As with the Amazon Fundamentals Alkaline AA, these batteries are dependable and relatively low-cost – though there are batteries obtainable rom rivals that maintain their cost for longer.

Amazon Basics High Capacity Rechargeable AA 2400mAh one battery lying down
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Design and Costs

  • Batteries lose important cost over 12 months
  • Excessive capability

I’ve been a fan of earlier Amazon Fundamentals batteries, however these are the primary rechargeable models I’ve examined. They arrive with a number of extra compromises over the alkaline batteries; however for the fitting folks, they may very well be a good selection.

Amazon is a bit shy in relation to detailed specs for its batteries, stating that the Amazon Fundamentals Excessive Capability Rechargeable AA 2400mAh could be recharged “lots of of occasions”, however with out giving an precise determine for lifetime charging cycles.

Amazon is clearer on cost retention: 70% after six months and simply 50% after one yr. If you happen to’re on the lookout for batteries to retailer for longer, or to be used in low-drain units comparable to distant controls, then you could favor batteries that retain greater cost percentages, such because the Duracell Rechargeable AA 2500mAh (80% after one yr).


  • Excessive capability in my assessments
  • Dependable efficiency

To check batteries, I exploit an Ansmann Power XC3000 battery tester. First, I measure the preliminary voltage, which for NiMH batteries ought to be a minimal of 1.2V. I measured the Amazon Fundamentals Excessive Capability Rechargeable AA 2400mAh at 1.4V. Voltage does drop because the batteries are used, though for rechargeable batteries, this drop is at a lowered price.

Subsequent, I measured the preliminary capability with a high-drain check (600mA +/- 20%). Right here, the Amazon Fundamentals Excessive Capability Rechargeable AA 2400mAh scored 2677mAh. That’s a very good chunk greater than the rated worth.

Subsequent, I cycle (cost and discharge) the batteries 50 occasions to see in the event that they begin to lose capability. I take readings each 10 cycles. From the graph beneath, you’ll be able to see that these batteries maintain up nicely, with little variance between cycles.

Amazon Basics High Capacity Rechargeable AA 2400mAh performance graph

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Must you purchase it?

These on the lookout for good-value rechargeable batteries, significantly in case you purchase in bulk, will do nicely with these Amazon batteries that do good job and are excessive capability.

If you would like the best capability batteries or models that can retain their cost for longer, there are higher alternate options obtainable.

Remaining Ideas

The principle benefit of the Amazon Fundamentals Excessive Capability Rechargeable AA 2400mAh batteries is that they’re comparatively low-cost, significantly when purchased in bigger portions. It isn’t clear what number of cost cycles they’ll final for, and so they lose extra cost per yr than a number of the competitors. If you would like low-cost rechargeable batteries that you simply’ll use right away, although, these models supply good worth – however there are extra versatile choices in the marketplace.

How we check

In contrast to different websites, we check each rechargeable battery we overview totally over an prolonged time frame. We use commonplace assessments to match options correctly. We’ll all the time inform you what we discover. We by no means, ever, settle for cash to overview a product.

Discover out extra about how we check in our ethics coverage.

We use an Ansmann Power XC 3000 to empty batteries, in order that we will check capability in mAh. After the primary run, we cost and discharge 50 occasions, measuring the capability each ten runs.

We measure the preliminary voltage of the batteries, checking that the beginning voltage is not less than 1.2V.

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