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Sony VTC5 test + comparison with Samsung 25R
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[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Sony VTC5 or US18650VTC5 is a 2600mAh 18650-size Li-ion cell which supports continuous discharge at up to 30A with 80°C temperature cut or up to 20A with no temperature control. VTC5 can hold up to 100A pulse discharge for <3 seconds.[/font]
[Image: 274196_original.jpg]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]The battery was bought from my reliable supplier ([/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Queen Battery[/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]) and tested with [/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]ZKETECH EBC-A20[/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif] and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A.[/font]
[Image: 87638_original.jpg]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals[/font]
[Image: 210421_original.jpg]
[Image: 209931_original.jpg]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]I've followed all the prescriptions of the [/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]IEC61960-2003[/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif] standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard charge current mentioned in its datasheet to charge end voltage. Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 25±2°C. To be sure in results i've done each test [/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]minimum twice[/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif] (usually 3-7 times).[/font]


[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]SONY US18650VTC5[/font]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]The heat shrink tube carries the following marking: SE US18650VTC5 C5 G 0173736ZC19U which tells that the cell was manufactured on 19 March 2017 by Sony Electronics (Singapore).[/font]
[Image: 273354_original.jpg]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Sony VTC5's main specifications according to its datasheet ([/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]pdf[/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]):[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Rated capacity: 2500mAh (0.2C, [/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]2.0V cut-off[/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif])[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Nominal capacity: 2600mAh (0.2C, [/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]2.0V cut-off[/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif])[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Nominal voltage: 3.6V[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Standard charge current: 2.5A [/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Charge end voltage: 4.20±0.05V[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Max charge current: 4A[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Ambient temperature range during charging: 0–60°C[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Recommended charge end voltage at <10°C and >45°C: 4.15V[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Max continuous discharge current: 20A (8C) / 30A (12C) with 80°C temperature cut[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Max pulse discharge current: 100A during <3sec[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Discharge cut-off voltage: 2.5V (2.0V for 0.2C)[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Ambient temperature range during discharging: -20–60°C[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]AC impedance at 1KHz: 8-18mΩ[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Weight: 44.3±1.5g[/font]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Cycle life: After 300 cycles at 4A charge with 100mA cut-off then 10A discharge with 2.5V cut-off the capacity should be ≥1750mAh (70% of rated capacity).[/font]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]DC IR at 2500mA in fully charged condition was 14.6±1mΩ (measured using EB Tester Software's Resistance test feature).[/font]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Measured dimensions: 18.2mm (diameter) × 65.0mm (length).[/font]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Measured weight: 44.12g.[/font]
[Image: 273924_original.jpg]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Sony US18650VTC5 capacity test results:[/font]
[Image: 273627_original.png]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]First of all, look at the discharge cut-off voltage at 0.2C - it's 2.0V because Sony uses it for rating its cell. At all other discharge rates 2.5V was used by Sony and by me too. I don't understand why Sony does that because the capacity carried between 2.5V and 2.0V is miserable - just look at the violet curve.[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Whatever, let's pass to the results. At 0.2C or 0.5A using 2.0V discharge cut-off VTC5 showed 2665mAh - a very expected good result. At all other discharge rates, as i told, 2.5V cut-off was used. At 5A discharge the capacity was slightly below 2500mAh but at 10, 15 and 20A it was above it. The curves look good, almost linear.[/font]


[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Comparison with Samsung 25R[/font]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Samsung INR18650-25R is a 2500mAh 18650 cell supporting continuous discharge at up to 20A. Not exactly the same spec as those of VTC5 but i think it's interesting to compare them. Watch it in the [/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]video version[/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif] of this test or read in [/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]my blog[/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif].[/font]


[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Verdict[/font]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Sony VTC5 is a real 2600mAh high-drain cell and there is no surprise because Sony is a top league player. 2.5V discharge cut-off makes VTC5 compatible with almost any BMS and 100A pulse discharge during up to 3 seconds makes it an excellent cell for power tools and e-cigs. Vapers (and not only) will be happySmile[/font]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Here is the video version of this review:[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif][Image: 273903_original.jpg][/font]

[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]Check out [/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]my YouTube channel[/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif] for batteries, chargers and other stuff reviews.[/font]
[font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]I've launched [/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif]my blog[/font][font='Lucida Grande', 'Trebuchet MS', Verdana, Helvetica, Arial, sans-serif] where you can find all my reviews in one place. Every new test/review will be first published on YouTube and in the blog. I'll be happy to see new subscribers, comments, suggestions and just your thoughts.[/font]
[font=Tahoma, Verdana, Arial, sans-serif]LiFePO4: [/font]QB26650 2500mAh 50A vs A123 ANR26650M1B: https://youtu.be/GOSkte11lRc

Yinlong LTO Lithium Titanate safety tests: https://youtu.be/eAUYbSDEy6I
Toshiba SCiB LTO Lithium Titanate safety tests: https://youtu.be/XsrRDZxEFQE

XTAR DRAGON 4-slot battery tester review: https://youtu.be/S6yVMsIuauE
Miboxer C4-12 4 slot x 3.0A charger review: https://youtu.be/X-ww1YALjvU
Miboxer C2-4000 smart battery tester review: https://youtu.be/jrbJceNXv1g

Samsung 33J for TESLA: https://youtu.be/7FMxgMmPeh4
Samsung 40T - a high drain 35A 21700 cellhttps://youtu.be/lxgKWiQ9580
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