Test/review of BPI AA 2400mAh (White-orange)

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HKJ
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Test/review of BPI AA 2400mAh (White-orange)

BPI AA 2400mAh (White-orange)
DSC_3238
Official specifications:


  • Battery Capacity (Mfg Rated): 2400 mAh
  • Battery Chemistry: Ni-MH
  • Battery Feature: Rechargeable
  • Battery Form Factor: AA
  • Battery Rated Voltage: 1.2 V
  • Capacity/output: 2400mAh / 0.2C
  • Standard charge speed: 210mA * 16 hours
  • Quick charge speed: 1050mA * 135 minutes
  • Internal resistance: 40mOhm
  • Designed recharge cycles: 1000
  • Self-discharge rate: 85% after 6 months, 80% after 12 months (both at 20’C)

BPI%20AA%202400mAh%20(White-orange)-info
Maximum temperature raise at different discharge currents: 1A:+1,9°C, 2A:+4,5°C, 3A:+7,1°C, 5A:+14,1°C, 7A:+20,5°C, 10A:+25,2°C
Fasttech calls NiMH these batteries Enelong.
DSC_3236 DSC_3237
DSC_3239 DSC_3240
DSC_3241
DSC_3242
DSC_3243
BPI%20AA%202400mAh%20(White-orange)-Capacity
The discharge curves looks fine for NiMH, there is a small difference between the cells.
BPI%20AA%202400mAh%20(White-orange)-CapacityTime
BPI%20AA%202400mAh%20(White-orange)-CapacityTimeHours
BPI%20AA%202400mAh%20(White-orange)-Energy
BPI%20AA%202400mAh%20(White-orange)-PowerLoadTime
BPI%20AA%202400mAh%20(White-orange)-CurrentTest
BPI%20AA%202400mAh%20(White-orange)-Charge
Conclusion
The batteries looks fine.
Notes and links
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/

-X3-
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Can we say that they are equivalent to eneloop pro ?

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HKJ
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X3 wrote:
Can we say that they are equivalent to eneloop pro ?

No, use my comparator and select BPI and eneloop Pro, the curves do not overlap.

http://lygte-info.dk/review/batteries2012/CommonAAcomparator.php

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

-X3-
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HKJ wrote:
X3 wrote:
Can we say that they are equivalent to eneloop pro ?

No, use my comparator and select BPI and eneloop Pro, the curves do not overlap.

http://lygte-info.dk/review/batteries2012/CommonAAcomparator.php


Close enough to me, given the huge price difference Smile
Thank you very much for all those amazing battery testing, I really rely on these to choose my stuff !

"-X3-, is there any place in your house without a flashlight ?" 

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HKJ
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X3 wrote:
Close enough to me, given the huge price difference Smile Thank you very much for all those amazing battery testing, I really rely on these to choose my stuff !

Remember my test is on new batteries, I do not test how well they last.

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

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HKJ wrote:
X3 wrote:
Close enough to me, given the huge price difference Smile Thank you very much for all those amazing battery testing, I really rely on these to choose my stuff !

Remember my test is on new batteries, I do not test how well they last.


Sure, I have a dozen of these so I’ll see how they hold their capacity

"-X3-, is there any place in your house without a flashlight ?" 

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SIGShooter
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X3 wrote:
HKJ wrote:
X3 wrote:
Close enough to me, given the huge price difference Smile Thank you very much for all those amazing battery testing, I really rely on these to choose my stuff !

Remember my test is on new batteries, I do not test how well they last.


Sure, I have a dozen of these so I’ll see how they hold their capacity
It would be great to know how well they agree. I have some tenergy’s that tested out well when new but after a couple of years wouldn’t hold a charge for more than a couple of days.
flydiver
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Which Tenergy’s specifically degraded so fast? The [Blues] are cheap but don’t seem to hold up well (been there, won’t do that again).
I’ve got some [Centura], AAA, AA and C. Once in awhile they come up for a very good price. So far, those are doing OK, but only ~1 year of use. The C’s are in constant use, cycled about every 2 weeks.

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SIGShooter
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flydiver wrote:
Which Tenergy’s specifically degraded so fast? The [Blues] are cheap but don’t seem to hold up well (been there, won’t do that again).
I’ve got some [Centura], AAA, AA and C. Once in awhile they come up for a very good price. So far, those are doing OK, but only ~1 year of use. The C’s are in constant use, cycled about every 2 weeks.

Mine are the AA Centura rated at 2000 mAh. I bought 10 in 2014 and they originally tested out at more up to 2252mAh (Opus 3100). When I tested them several months ago 6 wouldn’t hold a charge for a week with the worse dropping to 270 mAh. The other bad ones dropped to around 1000 Mah. The 4 better ones dropped to around 1800 mAh after a week. Not great by any means but better than the other 6.

I lost my original notes in a disk failure but my memory was that when new the tenergy’s didn’t self-discharge much more than enloops did.

flydiver
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Interesting, thanks. Like many here I often buy things to check them out for myself. That just doesn’t work too well for long term performance/reliability with batteries.
I’ll keep an eye on the Centuras.

To Air is Human, to Respire….Divine.