Test/Review of Sony US18650VTC5A (2600mAh, 35A*)

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light-wolff
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Test/Review of Sony US18650VTC5A (2600mAh, 35A*)

The VTC5A has higher current rating than the famous VTC5: 35A vs. 30A continoues current.
Nominal (2600mAh) and rated (2500mAh) capacity are the same.

*The 35A continuous current rating is only valid with 80°C temperature cutoff, as is the VTC5’s 30A rating.
My VTC5As exceeded 80°C already at 25A continuous discharge, so I didn’t go any further.
The VTC5A does heat up less than the VTC5.

Sony US18650VTC5A:

(1A curve for #2 is still missing, data was lost, I have to repeat).
(The dent in the 1A curve at 1.7Ah is real, I repeated the mesurement with exact same results.)
.
Sony US18650VTC5A capacity, energy and average voltage on discharge to 2.50V:


A Ah Wh V
1.0 2.444 8.899 3.641
3.0 2.439 8.745 3.586
5.0 2.424 8.584 3.541
7.0 2.438 8.549 3.506
10.0 2.454 8.460 3.448
15.0 2.453 8.272 3.373
20.0 2.438 8.062 3.306
25.0 2.434 7.890 3.242

.
So what’s the difference to VTC5? See Sony US18650VTC5A vs US18650VTC5:

Obviously, higher current rating and higher voltage come at a price.

Sony US18650VTC5A capacity, energy and average voltage on discharge to 2.80V (compared with VTC5):


A Ah Wh V
1.0 2.394 (2.564) 8.766 (9.350) 3.662 (3.646)
3.0 2.378 (2.522) 8.582 (9.002) 3.609 (3.569)
5.0 2.357 (2.550) 8.405 (8.968) 3.566 (3.517)
7.0 2.365 (2.593) 8.352 (8.974) 3.532 (3.461)
10.0 2.362 (2.614) 8.214 (8.907) 3.477 (3.407)
15.0 2.343 (2.634) 7.978 (8.736) 3.405 (3.316)
20.0 2.306 (2.630) 7.706 (8.553) 3.342 (3.252)
25.0 2.276 (——-) 7.467 (——-) 3.280 (——-)

.

Sony US18650VTC5A vs Samsung INR18650-25R:

.
Sony US18650VTC5A vs Samsung INR18650-30Q:

.
VTC5 and VTC5A were supplied by akktuteile.de for testing.

keengeorge
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Good Day Herr light-wolff, Smile

 

Very Useful data Superbly presented, particularly including the comparisons to other relevant cells/batteries.

 

Thank you Very Much,

Best Regards,

George

cajampa
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Wow, i had no idea a VTC5A even existed.

I am really impressed by the 30Q though Smile

chouster
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bump!

new Sony high drain cell guys! This one might bring some extra lumina to your crazy quads and triples. J)

cajampa
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I really look forward to the VTC6 3000mha 30A & VTC7 3500mha 8A tests Wink

source: http://www.candlepowerforums.com/vb/showthread.php?408224-New-Sony-US186...

light-wolff
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cajampa wrote:
I really look forward to the VTC6 3000mha 30A & VTC7 3500mha 8A…

Me too Wink
Bret White
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Where can I buy a vtc5a

Light master

akhyar
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Bret White wrote:
Where can I buy a vtc5a

Maybe if you can tell members where you are located will be easier for them to give suggestions.

light-wolff
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Bret White wrote:
Where can I buy a vtc5a

double post
Bret White
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Sry I’m in the u.s. Baltimore

Light master

vex_zg
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So is it correct to state that 30Q are better ?

More capacity, less voltage sag (except perhaps in the beginning of the discharge curve)?

light-wolff
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vex_zg wrote:
So is it correct to state that 30Q are better ?

More capacity, less voltage sag (except perhaps in the beginning of the discharge curve)?


Up to 10A: probably yes.
vex_zg
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light-wolff wrote:
vex_zg wrote:
So is it correct to state that 30Q are better ?

More capacity, less voltage sag (except perhaps in the beginning of the discharge curve)?


Up to 10A: probably yes.

Looking at this graph, in particular the 15A discharge curves:

http://abload.de/img/sonyus18650vtc5avssam7rplu.png

It seems that at 15A discharge, 30Q are better regards to voltage sag and capacity (expect during the first 500mAh of discharge where VTC5A have slight edge)

or am I missing something? Where do you see VTC5A as better?

Mitko
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vex_zg wrote:
light-wolff wrote:
vex_zg wrote:
So is it correct to state that 30Q are better ?

More capacity, less voltage sag (except perhaps in the beginning of the discharge curve)?


Up to 10A: probably yes.

Looking at this graph, in particular the 15A discharge curves:

http://abload.de/img/sonyus18650vtc5avssam7rplu.png

It seems that at 15A discharge, 30Q are better regards to voltage sag and capacity (expect during the first 500mAh of discharge where VTC5A have slight edge)

or am I missing something? Where do you see VTC5A as better?

At arround 5apms consumption and a Fet DD driver IT IS better, i`ve tested this one at least a dozen times: at,4.2, at 4, at 3.8 and at 3.7- not much but better, 30Q on the other hand has 20% better capacity and if the runtime is crusial then its the better one

light-wolff
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vex_zg wrote:
light-wolff wrote:
vex_zg wrote:
So is it correct to state that 30Q are better ?

More capacity, less voltage sag (except perhaps in the beginning of the discharge curve)?


Up to 10A: probably yes.

Looking at this graph, in particular the 15A discharge curves:

http://abload.de/img/sonyus18650vtc5avssam7rplu.png

It seems that at 15A discharge, 30Q are better regards to voltage sag and capacity (expect during the first 500mAh of discharge where VTC5A have slight edge)

or am I missing something? Where do you see VTC5A as better?


Continuous discharge isn’t all that matters. The 30Q gets blazing hot at 15A (the VTC5A not) nd this is the reason why the sag seems less. Heat reduces the internal resistance.
If the 30Q wouldn’t heat up, it would not catch up to the VTC5A curve until the very end.

If the battery is used intermittently, this heating effect is not present, resistance is higher, thus voltage is lower.

http://www.candlepowerforums.com/vb/showthread.php?397862-Continuous-vs-...