Test/Review of Tensai D TR-C8000 8000mAh (White)

HKJ

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Joined
Mar 26, 2008
Messages
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Location
Copenhagen, Denmark
[size=+3]Tensai D TR-C8000 8000mAh (White)[/size]

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Official specifications:
  • Model: TR-C8000
  • Manufacturer: TENSAI
  • Size: D , LR20
  • Chemistry: NiMH (Nickel Metal Hydride)
  • Nominal Voltage: 1.2V
  • Capacity: Minimum: 8000mA, Typical: 8050mA, When discharged at 0.2C to 1.0V at 20°C
  • Fast Charge: up to 4000mA
  • Service Life: >500 cycles
  • Internal Resistance: <30mOhm (upon fully charged)
  • Diameter (mm): 33
  • Height (mm): 61.5
  • Weight: 155g

Tensai%20D%20TR-C8000%208000mAh%20(White)-info.png

Maximum temperature raise at different discharge currents: 1A:+0,0°C, 2A:+0,2°C, 3A:+1,4°C, 5A:+4,8°C, 7A:+8,2°C, 10A:+11,9°C

A LSD (Low self discharge) D cell.

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Tensai%20D%20TR-C8000%208000mAh%20(White)-Capacity.png


The cell can handle a 10A load and do have the rated capacity, even at high load, but there is also a capacity different between the cells.

Tensai%20D%20TR-C8000%208000mAh%20(White)-CapacityTime.png


Tensai%20D%20TR-C8000%208000mAh%20(White)-CapacityTimeHours.png


Tensai%20D%20TR-C8000%208000mAh%20(White)-Energy.png


Tensai%20D%20TR-C8000%208000mAh%20(White)-PowerLoadTime.png


Tensai%20D%20TR-C8000%208000mAh%20(White)-CurrentTest.png


Tensai%20D%20TR-C8000%208000mAh%20(White)-Charge.png




[size=+3]Conclusion[/size]

The cells look acceptable and the 8Ah capacity in a LSD D cells is good.



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

I do not test above 10A because, my current equipment cannot handle 20A below 1.2 volt. 10A at 0.9 volt works fine.

The batteries was supplied by ENERDan for review.
How is the test done and how to read the charts
 

Mr Floppy

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Feb 19, 2007
Messages
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The cell can handle a 10A load and do have the rated capacity, even at high load, but there is also a capacity different between the cells.

Wow, it looks impressive. How variable is the difference in capacity?
 

HKJ

Flashaholic
Joined
Mar 26, 2008
Messages
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Location
Copenhagen, Denmark
Wow, it looks impressive. How variable is the difference in capacity?

If you look at the curves you will see I had a 500mAh difference at 10A and it is very unlikely that I got the best and worst battery to test.
Because the difference is a combination of mAh difference and higher internal resistance, it will be less at lower loads.
 
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