Test/Review of Flash AA 4600mAh (Yellow-blue)

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HKJ
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Test/Review of Flash AA 4600mAh (Yellow-blue)
Flash AA 4600mAh (Yellow-blue)

What do you get when you buy batteries rated at twice the normal capacity for NiMH?

DSC_5871

Official specifications:
  • Type: High Capacity 4600mAH
  • Estimated recharge times: Up to 1000 times, expiry dated 2018

Flash%20AA%204600mAh%20(Yellow-blue)-info

Maximum temperature raise at different discharge currents: 1A:+1,7°C, 2A:+4,0°C, 3A:+6,5°C, 5A:+11,5°C, 10A:+13,2°C
Capacity is less than 1/3 the rated capacity, I will not call it a surprise.

DSC_5869 DSC_5870


DSC_5872 DSC_5873

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Flash%20AA%204600mAh%20(Yellow-blue)-Capacity

The curves do match fairly well, but the batteries has low capacity and the voltage is lower than eneloops.

Flash%20AA%204600mAh%20(Yellow-blue)-CapacityTime

Flash%20AA%204600mAh%20(Yellow-blue)-CapacityTimeHours

Flash%20AA%204600mAh%20(Yellow-blue)-Energy

Flash%20AA%204600mAh%20(Yellow-blue)-PowerLoadTime

Flash%20AA%204600mAh%20(Yellow-blue)-CurrentTest

Flash%20AA%204600mAh%20(Yellow-blue)-Charge



Conclusion

If the batteries had been marked 1300mAh, they would have been good low capacity NiMH batteries.

To answer the question from the top: You get cheated.


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/