Sony US18650VC7 3400mAh (Green)
/DSC_3138.jpg)
Official specifications:
- Nominal capacity: 3500mAh (2V cut-off)
- Rated capacity: 3400mAh (2V cut-off)
- Capacity at 5A: 2720mAh (2.5V cut-off)
- Nominal voltage: 3.6V
- Charge voltage: 4.2V +/- 0.05V
- Charge current: 1.0A.
- Discharge current: up to 8A.
- Cycle life: 300 cycles to 70% at 1A charge and 5A discharge, 2.5V cut-off.
/Sony%20US18650VC7%203400mAh%20(Green)-info.png)
This is high capacity cells that can deliver a decent amount of current, but are not high current cells.
/DSC_3137.jpg)
/DSC_3139.jpg)
/DSC_3140.jpg)
/DSC_3141.jpg)
/DSC_3142.jpg)
/DSC_3143.jpg)
/Sony%20US18650VC7%203400mAh%20(Green)-Capacity.png)
The discharge curves tracks nicely, capacity may look at bit low, but that may be because I do not discharge to 2V. They easily matches the 5A rated capacity.
/Sony%20US18650VC7%203400mAh%20(Green)-Temp-10.0.png)
/Sony%20US18650VC7%203400mAh%20(Green)-Temp-15.0.png)
/Sony%20US18650VC7%203400mAh%20(Green)-CapacityTimeHours.png)
/Sony%20US18650VC7%203400mAh%20(Green)-CapacityTime.png)
/Sony%20US18650VC7%203400mAh%20(Green)-Energy.png)
/Sony%20US18650VC7%203400mAh%20(Green)-PowerLoadTime.png)
/Sony%20US18650VC7%203400mAh%20(Green)-TripCurrent.png)
/Sony%20US18650VC7%203400mAh%20(Green)-Charge.png)
Conclusion
Very good high capacity batteries from a big brand.
Notes and links
Vapcell told me that I was missing some cells in my comparator and they would be happy to supply them.
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
—
My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/
Thanks for the review!
I guess it is safe to say its major competitors are the MJ1 and “GA”. At 7A the MJ1 and VC7 are basically identical in voltage sag and capacity. The VC7 has slightly less voltage sag in the beginning.
The GA has slightly more voltage sag than the VC7 in the beginning, recovers and is then slightly better until the end and also has a little more capacity.
I would say GA’S are the better battery of the Three. I use them in several of my modded lights that do not require high, high drains like VTC5A/VTC5D/30Q!
Solitude breeds contemplation which creates clarity.
Environment molds a person. Perseverance changes them.
WOLFDOG
Thanks for the review HKJ
2v cutoff is extremely low not sure how much use it to us in a light.
Do you know the chemistry of the cell? If 2v cutoff is okay in this cell what about cells of similiar chemistry?Light Reviews
Cheap Flashlight Durability Test
Ekoras R7 review
Multiband radio review
YouTube Reviews
Astrolux FT03 Luminus SFT40 Beamshots
Luminus SFT-40 test output + candela tested
Ekoras S21 Review
Scratch builds
6th Annual Old Lumens Scratch build entry
7th annual Old Lumens scratch build entry
The datasheet do not specify chemistry, but notice that the cycle life is with 2.5V cut-off, there may be a reason for that
My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/
In my opinion the “best” high capacity cell is still the Samsung INR18650-35E. Use HKJ's comparator to see it clearly. To add fuel the fire, after a very hard 50 cycle high discharge versus test among LG HG2, Samsung 30Q and Sony VTC6 tester Mooch demonstrated that the Samsung 30Q ended up the winner because of combined top cycle life plus overall performance.
Samsung has among the best available li-ion cell technology nowadays, and its pricing is fair. Sony is expensive. Just an opinion, of course.
By the way, king of high discharge 18650s is… the Samsung INR18650-20S. And then there's the Samsung INR18650-24S and the INR18650-25S. At this moment, Samsung is ripping Sony a new one. Period.
Cheers
Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.
The human mind, and its programming, is at the forefront of a particular battle of The Light vs evil dark forces. Nearly every human being on this beautiful planet “Earth” has some sort of negative mind programming in its mind. And you better take care of your mind programming, or someone else will in this wicked world.
Viruses DON'T cause diseases! They are better called exosomes, and they are cell cleaners! Watch Virus Theory vs Exosome Theory video and awaken to this truth! Check this article by MD Andrew Kaufman. Read the book “Béchamp or Pasteur” by Ethel Hume for in-depth information.
Thanks HKJ!
I expected more from it really….will stick to 35E for now.
Though I can’t wait to see the test of 36G.