Test/review of Eneloop AAA BK-4MCCE 750mAh (White) 2019

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HKJ
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Test/review of Eneloop AAA BK-4MCCE 750mAh (White) 2019

Eneloop AAA BK-4MCCE 750mAh (White) 2019
DSC_7123
Official specifications:


  • Nominal voltage: 1.2V
  • Minimum capacity: 750mAh
  • Low self discharge: 70% capacity left after 10 years
  • Cycle life: 2100 cycles.

Eneloop%20AAA%20BK-4MCCE%20750mAh%20(White)%202019-info
Maximum temperature raise at different discharge currents: 1A:+2,3°C, 2A:+5,3°C, 3A:+7,9°C, 5A:+12,1°C
The newest generation Eneloop AAA cells.
DSC_7107 DSC_7108
DSC_7124 DSC_7125
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Eneloop%20AAA%20BK-4MCCE%20750mAh%20(White)%202019-Capacity
The two cells tracks nicely and discharge characteristic as expected for NiMH.
Eneloop%20AAA%20BK-4MCCE%20750mAh%20(White)%202019-CapacityTime
Eneloop%20AAA%20BK-4MCCE%20750mAh%20(White)%202019-CapacityTimeHours
Eneloop%20AAA%20BK-4MCCE%20750mAh%20(White)%202019-Energy
Eneloop%20AAA%20BK-4MCCE%20750mAh%20(White)%202019-PowerLoadTime
Eneloop%20AAA%20BK-4MCCE%20750mAh%20(White)%202019-CurrentTest
Eneloop%20AAA%20BK-4MCCE%20750mAh%20(White)%202019-Charge
Eneloop%20AAA%20BK-4MCCE%20750mAh%20%28White%29%202019%20A-Pulse-0.5A-30-30-0.7V-IR
Internal resistance calculated by pulsing 0.5A on/off during a full discharge.
Conclusion
There is not much to say about eneloop batteries, they work and they last a long time.
Notes and links
I am replacing my NiMH charger test batteries, they are from 2016 and some of them has a fairly high internal resistance. Some of the bad chargers I have tested have probably increased the deterioration rate of them.
The extra data in this review is not something I will do in other reviews, except maybe a few IR curves may show up.
How is the test done and how to read the charts
Compare to other AA/AAA batteries: Alkaline/NiMH/Lithium

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

arow55
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I’ve started using eneloop lites in aaa. They are rated at 550mah and 3000 cycles. Any chance of testing them?

HKJ
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arow55 wrote:
I’ve started using eneloop lites in aaa. They are rated at 550mah and 3000 cycles. Any chance of testing them?

Yes.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

arow55
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Last seen: 4 days 32 min ago
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Thanks.

Phlogiston
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Location: Scotland

Thanks for re-reviewing these and the AA ones, HKJ.

It’s good to know that the (Japanese) Eneloops are still a good choice.