Test/Review of Sony US18650V3 2250mAh (Green)

[size=+3]Sony US18650V3 2250mAh (Green)[/size]



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.















[size=+3]Conclusion[/size]

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.


[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

I like Sony, but 10A at only 2250mAh is down the scale a few notches.

Hell, I have 25Rs in my SupFire M6 and those are a good 1000mAh short of the LG MJ1s and S/P NCR-GAs at 3500mAh.

A couple/few hundred mAh's difference, I'm not giving it a thought, but a full Ah's difference, well...that's something to take notice over.

Chris