Test/Review of Sony US18650NC1 2900mAh (Green)

HKJ

HKJ

Flashaholic
Joined
Mar 26, 2008
Messages
9,714
Location
Copenhagen, Denmark
[size=+3]Sony US18650NC1 2900mAh (Green)[/size]

DSC_6306.jpg


Official specifications:
  • Typical capacity: 2900mAh
  • Minimum capacity: 2750mAh
  • Nominal voltage: 3.6V
  • AC-IR: 22mOhm
  • DC-IR: 36mOhm
  • Charging method: CC/CV
  • Charging voltage: 4.2V
  • Max. charging current: 2A (TBD)
  • Discharge voltage cut-off: 2.5V
  • Max. discharge current: 10A (TBD)
  • Max. temperature: 55°C at 6A (TBD)

The above specifications are from a preliminary datasheet.

Sony%20US18650NC1%202900mAh%20(Green)-info.png


Sony does not only make very high current batteries, but also batteries with more capacity.

DSC_6305.jpg


DSC_6307.jpg
DSC_6308.jpg


DSC_6309.jpg

DSC_6310.jpg


Sony%20US18650NC1%202900mAh%20(Green)-Capacity.png


The two cells has very good tracking and capacity does hold up well. More discharge curves would probably have meet if I had discharge down to the rated 2.5 volt.

Sony%20US18650NC1%202900mAh%20(Green)-CapacityTimeHours.png


Sony%20US18650NC1%202900mAh%20(Green)-CapacityTime.png


Sony%20US18650NC1%202900mAh%20(Green)-Energy.png


Sony%20US18650NC1%202900mAh%20(Green)-PowerLoadTime.png


Sony%20US18650NC1%202900mAh%20(Green)-TripCurrent.png


Sony%20US18650NC1%202900mAh%20(Green)-Charge.png




[size=+3]Conclusion[/size]

This is a very good battery, the capacity is acceptable for the current capability, but there are better batteries.



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

The batteries was supplied by Akkuteile.de for review.

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Compare to 18650 and other batteries
 
candle lamp

candle lamp

Flashlight Enthusiast
Joined
Jun 16, 2010
Messages
1,572
Location
South Korea
Thank you for your thorough review. HKJ! :thumbsup:
You mentioned "there are better batteries". Seems that Samsung INR 18650-29E and Panasonic NCR 18650PF give you much voltage and capacity at higher discharge current.
 
Top