Test/Review of Eneloop AAA BK-4HCC 900mAh (Black)

HKJ

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[size=+3]Eneloop AAA BK-4HCC 900mAh (Black)[/size]

DSC_5471.jpg


Official specifications:
  • Type: Nickel-Metal Hydride Battery
  • Size : AAA Consumer Type
  • Typical capacity: 950mAh
  • Minimum capacity: 900mAh
  • Nominal voltage: 1.2V
  • Fast Charging Current: 950 mA
  • Charge condition: 0°C - 40°C
  • Discharge condition: 0°C - 50°C
  • Internal Impedance: Approx. 40mOhm(at 1000Hz)
  • Weight: Approx. 13 g
  • Size (Diameter) x (Height): 10.5(D) x 44.5(H) mm

Eneloop%20AAA%20BK-4HCC%20900mAh%20(Black)-info.png

Maximum temperature raise at different discharge currents: 1A:+2,1°C, 2A:+5,0°C, 3A:+8,3°C, 5A:+12,1°C, 7A:+9,9°C
This is the high capacity version of eneloop AAA battery.

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DSC_5470.jpg


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DSC_5473.jpg


DSC_5474.jpg

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Eneloop%20AAA%20BK-4HCC%20900mAh%20(Black)-Capacity.png


The battery does very fine up to 1 or 2A, but 5A is definitely to much.

Eneloop%20AAA%20BK-4HCC%20900mAh%20(Black)-CapacityTime.png


Eneloop%20AAA%20BK-4HCC%20900mAh%20(Black)-CapacityTimeHours.png


Eneloop%20AAA%20BK-4HCC%20900mAh%20(Black)-Energy.png


Eneloop%20AAA%20BK-4HCC%20900mAh%20(Black)-PowerLoadTime.png


Eneloop%20AAA%20BK-4HCC%20900mAh%20(Black)-CurrentTest.png


Eneloop%20AAA%20BK-4HCC%20900mAh%20(Black)-Charge.png




[size=+3]Conclusion[/size]

This is the first AAA NiMH battery I have tested and I cannot say anything about performance compared to other NiMH AAA batteries.



[size=+3]Notes and links[/size]

How is the test done and how to read the charts
 

AbbyY

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THQ HKJ for another useful review.

I bought a blister pack consisting in 4 batteries. They are made in Japan in February, 2014. The code is BK-4HCCE (I don't know what the final letter "E" means, is it for European market?).

After BreakIn and three cycles in Maha MH-C9000, available capacities are:
1. 930mAh
2. 936mAh
3. 945mAh
4. 934mAh

I use them in Olight I3S EOS (I have 3 of them).
 
Last edited:

Mr Floppy

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I think I have a previous generation. They were called Sanyo XX High Capacity Eneloop Ni-MH 1.2V 900mAH. Don't have the code handy but it is 500 cycles. Just used one in a DQG IV but that isn't too taxing on the batteries.
 

candle lamp

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Excellent test reveiw as always. HKJ! :thumbsup: Thank you.

The trace curves between two cells are not consistent (i.e., large different) in discharge curve with constant power.
I think it will not be an issue in using the cells in series, as these are Ni-Mh cells.
 

mummel

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For a noob, how do I interpret your conclusion? Are you saying other AAA NiMh have similar performance (like the Amazon AAA rechargeables for $16 for an 8 pack)? Thanks.
 

HKJ

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For a noob, how do I interpret your conclusion? Are you saying other AAA NiMh have similar performance (like the Amazon AAA rechargeables for $16 for an 8 pack)? Thanks.

No, as I wrote above it is the first AAA batteries I have tested, this makes it difficult to draw any conclusion compared to other AAA batteries.
 

mummel

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No, as I wrote above it is the first AAA batteries I have tested, this makes it difficult to draw any conclusion compared to other AAA batteries.

Ok cool, thanks. The AAA options that appear to be the more main stream are:

Panasonic BK-4MCCA8BA Eneloops = $18 for 8 (min 750mah)
AmazonBasics = $16 for 8 (min 750mah)
EBLs (which supposedly have min 1000mah) = $14

Trying to figure out what would be best.
 

mummel

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Wow I just found your full 18650 chart review. That is amazing. Thank you. I hope you'll be able to look at AAAs and AAs as millions of people use these types. Very cool.
 

HKJ

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Wow I just found your full 18650 chart review. That is amazing. Thank you. I hope you'll be able to look at AAAs and AAs as millions of people use these types. Very cool.

I do also have a chart with AA/AAA cells: http://lygte-info.dk/review/batteries2012/CommonAAcomparator.php and I will add one more to that list today.
Mainly my test is LiIon, but sometimes I do also test other batteries and I do have a couple of AA/AAA test data that I need to make into reviews.
 

HKJ

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Ok cool, thanks. The AAA options that appear to be the more main stream are:

Panasonic BK-4MCCA8BA Eneloops = $18 for 8 (min 750mah)
AmazonBasics = $16 for 8 (min 750mah)
EBLs (which supposedly have min 1000mah) = $14

Trying to figure out what would be best.

My favorite batteries are eneloops and other brands made on the FDK factory in Japan (I.e. same performance as eneloop).
 

mummel

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Perfect! Do you have a summary chart on these tests to ranks them all next to one another (that way I can see who's got the most capacity). Thanks.
 

HKJ

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Perfect! Do you have a summary chart on these tests to ranks them all next to one another (that way I can see who's got the most capacity). Thanks.

No and the comparison chart for 18650 is not complete either. The problem is I have made to many test to fit them in on chart. Some day I hope to get time for making a new script that will split the comparison into multiple charts.
 

HKJ

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I hope you get paid for all this good work!

No, but I often get batteries for "free", i.e. I do seldom pay for the batteries I test.
It is the same for the chargers, I only buy a few of them.

Usual I add a line at the bottom of the review when I get stuff for free, but sometimes I forget it (It is often easy to figure out anyway, if I post a couple of reviews for a brand and one of them is missing that line, it is because I forgot it, not because I paid for that single item).
 

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