Opinion on batteries Samsung 20S for my setup

[Jose Mendiola]

Hey guys, it's me once again. So I have a new squonking device -VandyVape's Pulse Dual Kit- and I'm loving it. I'm currently using 2 Sony VTC5A at 100W with coils around 0.08ohms and 0.15ohms.

I'm getting off-track here, but the thing is: Do you guys recommend buying a new pair of Samsung 20S batteries for my setup? What are your opinions on these batteries?

 

[Topwater Elvis]

Great cells if you need the current / amps.

Using a regulated 2 cell power device at 100w with 2 VTC5A 2500mah 25a CDR cells is leaving about 50w of headroom.

I don't see any real benefit to your setup by changing to higher CDR lower mah cells.

 

[Mordacai]

Hello @Jose Mendiola, can we ask how high a wattage you use please?

As Power and Resistance are important.

 

[Eskie]

Agree with @Topwater Elvis you're fine with the VTC5A batteries. The 20S are great but you don't need them at 100W.

 

[GOMuniEsq]

At 100W you can get by with a pair of 15A-rated cells.
The Samsung 20S is one of Mooch's recommended high drain cells but your use case does not warrant those.
You'd be better served with a pair of high capacity Sony VTC6, Samsung 30Q, or LG HG2 cells.
Mooch's Recommended Batteries | E-Cigarette Forum

Or, by all means, keep using what you already have.

 

[greek mule]

What @Topwater Elvis said.

 

[sonicbomb]

The relationship between capacity (mAh) and output power (amps, CDR) is like a see-saw
If you don't need the amps, then benefit from the mAh of a given cell.

 

[Punk In Drublic]

Actually there are other factors involved. mAh ratings are measured at low current draw and usually down to 2.5 volts. A 3000 mAh cell may have more amp hours down to 2.5 volts at a 0.5 amp draw. But it may also reach the usual 3.2 volt cut-off quicker than a cell of higher CDR and lower mAh. Look at Mooch’s measurements, and follow the 20 amp plot to where it crosses the typical 3.2 volt cut-off. That will give you your AmpHrs

Sony VTC5A 2500 mAh = 1.700 AmpHrs
Samsung 20S 2000 mAh = 1.650 AmpHrs
Molicell P28A 2700 mAh = 1.680 AmpHrs
LG HG2 3000 mAh = 1.500 AmpHrs

Even if we used the 10 amp plot, the Molicell equals the LG despite a lower mAh

Voltage sag could also be a factor where a higher mAh cell may display more sag, thus may trigger that low battery warning earlier than a higher CDR cell. Unfortunately Mooch has not presented voltage sag measurements for all cells tested.

 

[sonicbomb]

You are bang on the money PiD, but sometimes baby steps are best first. You are missing a value for the HG2.

 

[Punk In Drublic]

You are missing a value for the HG2.

Whats that?

 

[Baditude]

Whats that?

Sony VTC5A 2500 mAh = 1700 AmpHrs
Samsung 20S 2000 mAh = 1650 AmpHrs
Molicell P28A 2700 mAh = 1680 AmpHrs
LG HG2 3000 mAh 1500 = AmpHrs

Its a typo.

 

[Baditude]

WATTAGE PER SINGLE BATTERY on REGULATED MOD:
(Total wattage doubles using 2 batteries; Triples using 3 batteries.)

Up to 45W:

Samsung 18650 30Q, 3000 mah 15 amp CDR

Sony 18650VTC6 3000mAh 15 amp CDR

​

Up to 60W:

LG 18650HG2 3000mah 20 amp CDR

LG 18650HE4 2500 mah 20 amp CDR

Samsung 18650-25R, 2500 mah 20 amp CDR

Sanyo UR18650NSX, 2500 mah 20 amp CDR

Sony 18650VTC5, 2600 mah 20 amp CDR

Sony 18650VTC4, 2100 mah 23 amp CDR

​

Up to 75W:

LG 18650 HD4 2100 mah 25 amp CDR

LG 18650 HD2 2000 mah 25 amp CDR

Samsung 18650-24S, 2500 mah 25 amp CDR

Sony 18650VTC5A, 2500 mah 25 amp CDR

Molicel 18650-P26A, 2600 mah 25 amp CDR

​

Up to 90W:

LG18650HB6 1500mah 30 amp CDR

LG18650HB2 1500mAh 30 amp CDR

LG18650HB4 1500mAh 30 amp CDR

Samsung 18650-20S 2000mah 30 amp CDR

 

[Punk In Drublic]

Sony VTC5A 2500 mAh = 1700 AmpHrs
Samsung 20S 2000 mAh = 1650 AmpHrs
Molicell P28A 2700 mAh = 1680 AmpHrs
LG HG2 3000 mAh 1500 = AmpHrs

Its a typo.

LOL….absolutely correct. It was early and I was still working on my morning coffee. The “=” sign in the wrong place. Should be LG HG2 3000 mAh = 1500 AmpHrs

 

[Punk In Drublic]

Also noticed I missed a decimal point. It’s not 1500 AmpHrs….that would be one hell of a battery – it is 1.500 AmpHrs!

Correction made an apologise for any confusion.

 

[mimöschen]

As long as the cells are fresh, the VTC5A will outperform the 20S at 100W a little bit.
But if you take into account that the 20S stays a lot cooler than the VTC5A during discharge, that advantage might diminish over time.

 

[Jose Mendiola]

Thanks to everyone who replied. Very useful feedback. Some points to add are:

-I want cooler batteries as after a good 50-100puffs they get quite warm (VTC 5A)
-I always carry an extra pair of fully charged batteries with me when vaping
-I used to vape at 60-80 watts until I bought the Pulse Dual and started using RDAs more, and find it that higher wattage gives me more flavor and now I vape at 100W-120W
-They have great reviews but wondered if I actually would benefit from them

EDIT:

-I also wanted longer lasting batteries that could handle the wattage and resistance I use. I've been rocking Ni80 at 0.08-0.1ohms