Test/Review of Tensai C TR-C4000 4000mAh (White)

Tensai C TR-C4000 4000mAh (White)


Official specifications:

  • Model: TR-C4000
  • Manufacturer: TENSAI
  • Size: C , LR14
  • Chemistry: NiMH (Nickel Metal Hydride)
  • Nominal Voltage: 1.2V
  • Capacity: Minimum: 4000mA, Typical: 4050mA, When discharged at 0.2C to 1.0V at 20°C
  • Fast Charge: up to 2000mA
  • Service Life: >500 cycles
  • Internal Resistance: <30mOhm (upon fully charged)
  • Diameter (mm): 26
  • Height (mm): 50
  • Weight: 80g



Maximum temperature raise at different discharge currents: 1A:+0,7°C, 2A:+2,0°C, 3A:+3,6°C, 5A:+7,7°C, 7A:+12,3°C, 10A:+17,5°C

A C sized LSD cell, that has more than specified capacity.











The cells has a good capacity match all the way up to 10A, but they are pressed at 10A.











All the mess between 12A and 14A is my setup that hits its voltage/current limit.





Conclusion

This looks like a good NiMH battery.



Notes and links

The batteries was supplied by ENERDan for review.

How is the test done and how to read the charts

Thank you HKJ for the nice review. Happy new year!