Verdict
rat to last for 1600 charge and able to hold 80 % of their charge over a year , the Panasonic HHR-4MVE AAA battery appear to be ideal for low - drainpipe uses , such as distant controls . In my run , the batteries did n’t deliver as much capacity as I ’d hoped for , plus the cover of one barrage fire had begun to peel off .
Pros
Cons
Key Features
Introduction
Built to keep their billing and up to of being charged up to a couple of thousand times , the Panasonic HHR-4MVE AAA rechargeable batteries would seem to be a good competitor to the Eneloop AAA bombardment . The full capacitance in my tests was n’t as good as I ’d hoped for , however , while the label of one battery started to peel off .
Design and Charges
Longevity is key for rechargeable batteries and , on paper , the Panasonic HHR-4MVE promises to deliver . Capable of being recharged 1600 time , these AAA shelling can be used time and metre again . Only the Eneloop AAA bombardment perform well in this region .
In accession , the Panasonic stamp battery are plan to retain up to 80 % of their charge over a year , which means that you may either saddle and store them , or use them in low - drain gimmick – such as remote controls – without losing power too quickly .
That ’s all practiced news , but the set of batteries that I had bought for reexamination did n’t give up the practiced build quality . After using the batteries in testing them and storing them , one of the batteries had an take : its credit card wrapping had begun to come off , with a small amount of beige liquid seeable . I would n’t use that battery again .
While this does n’t speak for the quality of the battery serial as a whole , it ’s disappointing to have one bombardment out of a gang die int his way . None of the other rechargeable battery that I ’ve tested has developed a similar fault .
Performance
Rated as 750mAh batteries , I put these models through my standard psychometric test using an Ansmann Energy XC3000 assault and battery tester . First , I measure the starting potential difference , which should be a minimum of 1.2V. Here , electric potential was 1.29V.
Next , I measured the initial capacity , using the high - drain test ( 600mA , + /-20 % with a shorten - off voltage of 0.94V ) . The initial outcome of 736mAh is a trivial below the rated 750mAh , although my tests normally show results that are a number higher .
Next , I ran 50 charge and discharging cycles , try every 10 oscillation . Here , the bombardment were fairly unchanging in the results until 40 cycle in , at which percentage point the results drop below 700mAh .
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Should you buy it?
If you involve a Seth of battery that are rated to last for a lot of charges and can find these at a reasonable Mary Leontyne Price , they may be a good choice .
If you need the most charge cycle out of a battery , or you want the high capacity , there are skilful options .
Final Thoughts
While it ’s likely that the bombardment whose cover had start to come aside was a one - off , overall the Panasonic HHR-4MVE do n’t stand up to the challenger . If you desire battery that last a long time and keep their charge , the Eneloop AAA are better . The Ansmann Micro AAA 1100mAh are better if you want maximum capability .
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How we test
Unlike other website , we test every rechargeable battery we review thoroughly over an lengthy point of fourth dimension . We apply standard tests to compare features properly . We ’ll always tell you what we find out . We never , ever , accept money to go over a product .
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