Test/Review of Sony US18650V3 2250mAh (Green)

Sony US18650V3 2250mAh (Green)



Official specifications:

  • Nominal Capacity: 2250mAh (0.2C discharge)
  • Rated Capacity: 2150mAh (0.2C discharge)
  • Capacity at 1C: 2137mAh (average capacity)
  • Capacity at 10C: 2189mAh (average capacity)
  • Nominal Voltage: 3.7V
  • Cut-off voltage: 2.5V
  • Internal Impedance: 31.5mOhm Typ.(measured by AC1kHz)
  • Cycle Performance: 88% Min. of Initial capacity at 500 cycles(5A discharge)
  • Charge Method: constant current constant voltage
  • Charge Up Voltage: 4.2±0.05V
  • Charge Current: 2.15A
  • Charge Time: 2.5h
  • Ambiance Temperature: 23°C
  • Dimensions: 18.35mm(D)*65.10mm(H)
  • Weight: Max.44g
  • Continuous Max. Discharge Current: 10A




A high current cell, but the specifications looks a bit dated.











The discharge curves look very good with both fine tracking and constant capacity at different load up to 10A.















Conclusion

Being a Sony it is a very good cell and a few years ago this would have been a well performing high current cell, but today there are many cells with better performance.


Notes and links

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

I think this is the cell inside the Makita battery packs

I was looking for photos that resembled the cells i had … And now… Here you are HKJ!

Do you have the data sheet…? Today i looked at the charger dc18ra /rc and it charge them @9A since they are 5s2p every cell gets 4.5A

*to be more precise i must say that in 3.0 Ah battery packs the version is US18650V (not V3)

I have a datasheet I found on the internet.