Test/Review of Sony US18650VTC5 2600mAh (Green)

Batteries and Chargers Rechargeable Batteries
1

Sony US18650VTC5 2600mAh (Green)



Official specifications:

  • Nominal Capacity (0.2C discharge): 2600mAh 9.36Wh (2.0V cut-off)
  • Rated Capacity (0.2C discharge): 2500mAh 9.00Wh (2.0V cut-off)
  • Capacity at 1C: 2563mAh 9.23Wh (2.5V cut-off)
  • Capacity at 10A: 2577mAh 8.80Wh (2.5V cut-off)
  • Nominal Voltage: 3.6V
  • Internal Impedance: 13.0mOhm Typ. measured by AC1kHz
  • Cycle Performance: 70% Min. of Initial capacity at 300 cycles 10A discharge, 2.5 volt cut-off
  • Size (with plastic tube): Diameter 18.35mm max, Length 65.20mm max
  • Standard Charge Current : 2.5A
  • Standard Charge Time : 2.5h
  • Weight: 44.3g Average




This is a very high current cell.
I do not test it fully, as can be seen in the specifications above it can be discharged down to 2.0 volt, but it looks like 2.5 volt is the preferred value.








The label is not from Sony but applied by Akkuteile.de



Very impressive tracking between the cells, it is difficult to see that there is curves for two cells.
According to the datasheet for the cell the temperature can raise more than 50°C during a 20A discharge.















Conclusion

This is a very good high current battery, it has fairly high capacity and can deliver a lot of current.



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

2

Thanks for testing !

3

Great to see the review numbers confirm that if you need high current and high voltage, nothing comes close to this 18650.

4

How does it compare to the NCR18650BD

5

too bad its very hard to find legit ones these days.
too many fakes going around right now…

6

Higher current rating and claimed lower capacity for the Sony compared to the Panasonic BD which is rated as a 10 Amp continuous discharge battery by Panasonic. Note that the RMM price is lower and includes plastic storage boxes but he does charge for shipping and he is currently out of stock on them. Still the questioner is in France so his link may be better for him though at the moment FastTech battery shipping seems to be pretty slow.

http://www.mtnelectronics.com/opencart/index.php?route=product/product&path=59_88&product_id=288

7

Thank you. I haven’t found the Panasonic BD review yet so I’ll wait.
I’m seriously considering using 4 of these cells (Sony or Panasonic) in series in my RC plane. It draws 12A MAX so both batteries should handle it as I’m not using full throttle often.
I’m considering this because the energy density is much better (about 30% more Wh/Kg) than any Lipo out there… I don’t need 40C discharge for my little plane…

8

However remember that batteries (VTC5-25R-HE2), have a better operation of the Panasonic BD until the 3.0 Volts.

After the 3Volts, the mAh of the battery, it is better to stay in battery .

with more Amperes will you got and quantities operation and performance.

My opinion

9

thanks HKJ