Vaping above 5v?

[Kingrex00]

Hi so I’m currently using the aegis legend mod with the digiflavour pharaoh rta, I’m currently using a premade staple staggered fused Clapton coil at .35 ohms

The thing is while vaping at 70w my legend reads at 4.95 volts, I’d like to know is it safe to go above 5 volts?

Or do I have to do something with the coil to get the ohms down, currently my coil has 4 wraps so I’m not sure if bringing it down to 3 would be the best option

Thanks!

 

[Rossum]

Volts don't matter.
Watts don't matter.
Ohms don't matter.
Coil temperature is what's important.
Ideally, you'd like to stay about 50°F (~30°C) below the onset of burnt taste.

 

[Kingrex00]

The guy at the vape store said you shouldn’t go over 5 volts, I think that’s what confused me

 

[Rossum]

The guy at the vape store said you shouldn’t go over 5 volts, I think that’s what confused me

He wouldn't be the first guy at a vape store who's mis-informed.

 

[Kingrex00]

He wouldn't be the first guy at a vape store who's mis-informed.

Haha thanks a lot! I’ll be going higher now that I know it’s safe

 

[DaveP]

The guy at the vape store said you shouldn’t go over 5 volts, I think that’s what confused me

Coil resistance is the key to bringing the vape level into the center of your regulated mod's capabilities. Power (wattage) mode does that for you automatically, but when the mod tops out in voltage you have to lower the coil resistance to go higher. Current is a big consideration. The chart in the 2nd link below will show you watts and amps. Be careful you don't exceed the amperage capacity of your batteries. I say that because you didn't tell us what cells your have in the Aegis.

You can play with it here.
Ohms Law Calculator

https://cdn-vapingvibe.pressidium.c...hms-law-chart-for-sub-ohm-vaping-1024x686.png

 

[Tralfaz]

Voltage would be a concern on a mechanical mod. Maybe vape store guy was confused on that aspect. The chip in your Aegis will regulate the voltage in order to maintain the wattage you have chosen. It's perfectly safe, or as safe as you can be at least.

 

[Kingrex00]

Coil resistance is the key to bringing the vape level into the center of your regulated mod's capabilities. Power (wattage) mode does that for you automatically, but when the mod tops out in voltage you have to lower the coil resistance to go higher. Current is a big consideration. The chart in the 2nd link below will show you watts and amps. Be careful you don't exceed the amperage capacity of your batteries. I say that because you didn't tell us what cells your have in the Aegis.

You can play with it here.
Ohms Law Calculator

https://cdn-vapingvibe.pressidium.c...hms-law-chart-for-sub-ohm-vaping-1024x686.png

Thank you! I’m currently using 2 LG lithium ion 18650’s but I’m not sure the capacity of them

 

[Kingrex00]

Voltage would be a concern on a mechanical mod. Maybe vape store guy was confused on that aspect. The chip in your Aegis will regulate the voltage in order to maintain the wattage you have chosen. It's perfectly safe, or as safe as you can be at least.

Yes I guess the guy thought I was using a mech mod and it’s good to know the aegis regulates the wattage that’s perfect, thank you!

 

[DaveP]

Thank you! I’m currently using 2 LG lithium ion 18650’s but I’m not sure the capacity of them

Check out Battery Bro's Mooch approved chart. For 70W and above I'd go with cells rated at 30A for head room. The Sony VTC4 is a good choice. The chart below shows several Mooch approved cells that are rated at 30A.

Mooch's battery tests.

List of Battery Tests | E-Cigarette Forum

 

[Kingrex00]

Check out Battery Bro's Mooch approved chart. For 70W and above I'd go with cells rated at 30A for head room. The Sony VTC4 is a good choice. The chart below shows several Mooch approved cells that are rated at 30A.

Mooch's battery tests.

List of Battery Tests | E-Cigarette Forum

I found my batteries on there and it said my max continuous discharge current is 20A, does that mean it shouldn’t be used over 70W?

 

[CasketWeaver]

Wattage, voltage... blegh. My advice to anyone using a mod - since most batteries run stock at 3.7V - maybe we should calculate how many watts on a set coil would equal 3.7v. You can go above an beyond that, sure. But if it falls outside of the CDR limit of your battery, avoid doing so.

Also, if you use TC / TCR / or any Temp Control based items - then stick with something below burning temps of cotton / rayon / pulp / etc. Usually 425 - 450F for cotton / rayon (of course you can go over) but it makes no sense to do so since anything over the singe / burn limit of whatever wicking material you're using.

 

[Kingrex00]

Wattage, voltage... blegh. My advice to anyone using a mod - since most batteries run stock at 3.7V - maybe we should calculate how many watts on a set coil would equal 3.7v. You can go above an beyond that, sure. But if it falls outside of the CDR limit of your battery, avoid doing so.

Also, if you use TC / TCR / or any Temp Control based items - then stick with something below burning temps of cotton / rayon / pulp / etc. Usually 425 - 450F for cotton / rayon (of course you can go over) but it makes no sense to do so since anything over the singe / burn limit of whatever wicking material you're using.

What does CDR stand for?

 

[kbeam418]

Wattage, voltage... blegh. My advice to anyone using a mod - since most batteries run stock at 3.7V - maybe we should calculate how many watts on a set coil would equal 3.7v. You can go above an beyond that, sure. But if it falls outside of the CDR limit of your battery, avoid doing so.

Also, if you use TC / TCR / or any Temp Control based items - then stick with something below burning temps of cotton / rayon / pulp / etc. Usually 425 - 450F for cotton / rayon (of course you can go over) but it makes no sense to do so since anything over the singe / burn limit of whatever wicking material you're using.

I agree except for the part on temp control. I don't use temp control to keep my rayon from burning I use it so the coil instantly comes to temp and stays where I set it. Temp control backs off way before that wick gets completely dry.

 

[Punk In Drublic]

Voltage should only be a concern if you are pushing a regulated device to it’s limits. And even then, the device will most likely start to scale back the voltage if it cannot keep up. This is usually the case when users run high wattage with high resistance coils.

The Aegis Legend is able to produce 9 volts (according to its specs), so 5 volts is a comfortable medium.

If you do not vape above 70 watts, two 20 amp battery’s is more than sufficient with plenty of headroom. 30 amp battery’s will not hurt.

Wattage, voltage... blegh. My advice to anyone using a mod - since most batteries run stock at 3.7V - maybe we should calculate how many watts on a set coil would equal 3.7v. You can go above an beyond that, sure. But if it falls outside of the CDR limit of your battery, avoid doing so.

For a regulated device you calculate the needed CDR based on how many cells, the wattage used the device’s cut off voltage and its efficiency. This is done by determining the watts per cell (Wbatt), divide by the cut off voltage of the device and the efficiency of the device (Abatt). 90% efficiency is a safe guesstimate if this value is unknown.

So using the OP’s GV Aegis Legend at 70 watts, 3.2 volts cut off and 90% efficiency we calculate…

Wbatt = 70/2 = 35
Abatt = 35/3.2/0.9 = 12 amps per battery.

 

[CasketWeaver]

What does CDR stand for?

Continuous Discharge Rate - Usually measured in AMPS. Every battery has an amp limit - pulse discharge and continuous discharge rate. You can say "well the pulse discharge rate is..." pay no mind to it. To be safe is to just use the continuous discharge rate. If the battery AMP limits are 30Amps - then don't go above it.

 

[CasketWeaver]

Voltage should only be a concern if you are pushing a regulated device to it’s limits. And even then, the device will most likely start to scale back the voltage if it cannot keep up. This is usually the case when users run high wattage with high resistance coils.

The Aegis Legend is able to produce 9 volts (according to its specs), so 5 volts is a comfortable medium.

If you do not vape above 70 watts, two 20 amp battery’s is more than sufficient with plenty of headroom. 30 amp battery’s will not hurt.



For a regulated device you calculate the needed CDR based on how many cells, the wattage used the device’s cut off voltage and its efficiency. This is done by determining the watts per cell (Wbatt), divide by the cut off voltage of the device and the efficiency of the device (Abatt). 90% efficiency is a safe guesstimate if this value is unknown.

So using the OP’s GV Aegis Legend at 70 watts, 3.2 volts cut off and 90% efficiency we calculate…

Wbatt = 70/2 = 35
Abatt = 35/3.2/0.9 = 12 amps per battery.

Which would be well within specs if his batteries were rated at 15A or more.

 

[DaveP]

I found my batteries on there and it said my max continuous discharge current is 20A, does that mean it shouldn’t be used over 70W?

Two Mooch approved cells in your mod should put you in the safe range at 70W with headroom to go much higher.

CDR (continuous discharge rate) is a number that represents the maximum current that the cell can withstand over time without overheating or being damaged.

MAH (milliamps per hour) is the amount of time that the cell can supply current to the device. If the rating is 3000mah the cell can supply 3000 milliamps for an hour or 300ma for 10 hours. The harder you run it the shorter the vape time. It's just an indicator of how long you can vape on a given cell. We don't hit them continuously, so actual vape time is much longer.

The generally accepted estimate for batteries to be used in a mod is a single cell mod can go to 60W, dual cell mods 120W, and triple cell mods 180W. Those numbers assume that you use the best 18650 batteries that are rated for high wattage (MAH) and current (CDR).

If you want long vape times, choose the cells that offer the highest Continuous Discharge Rate (CDR) and also have a current rating that is within the range your mod draws at the wattage you vape at.

The Best 18650 Batteries for Vaping [2019]

 

[Baditude]

There is a direct relationship of how many watts you can draw from a battery, which depends upon the amp limit (continuous discharge rate) of the battery.

Are you using a single, dual, or triple battery mod? In the interests of keeping things simple:

-If you use a good quality 15 amp CDR battery like the Samsung 30Q or Sony VTC6, then you are good up to 45 watts per battery; 90 watts using two; 135 watts for three batteries.

-If you use a good quality 20 amp CDR battery like the LG HG2 or Samsung 25R then you are good for 60 watts per battery. If using a 2-battery regulated mod, you're good for 120 watts as you have two batteries. If you are using a 3-battery mod, you're good for 180.

-If you use a single 25 amp CDR battery like the Sony VTC5A, then you are good for 75 watts per battery, 150 watts for two batteries, and 225 watts with three.

-If you use a single 30 amp CDR battery like the LG HB6 you are good up to 90 watts; with a pair of 30 amp CDR batteries you could safely do 180 watts.​

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

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

​

 

[CasketWeaver]

I agree except for the part on temp control. I don't use temp control to keep my rayon from burning I use it so the coil instantly comes to temp and stays where I set it. Temp control backs off way before that wick gets completely dry.

Back when I used it, I usually set it to 450F and left it alone. I played within the limits of 475+ and found that it began burning my wicks. Rarely did it "combust" or "caught fire". But it definitely gave a really harsh taste.

Are you using a single, dual, or triple battery mod? In the interests of keeping things simple:

-If you use a good quality 15 amp CDR battery like the Samsung 30Q or Sony VTC6, then you are good up to 45 watts per battery; 90 watts using two; 135 watts for three batteries.

-If you use a good quality 20 amp CDR battery like the LG HG2 or Samsung 25R then you are good for 60 watts per battery. If using a 2-battery regulated mod, you're good for 120 watts as you have two batteries. If you are using a 3-battery mod, you're good for 180.

-If you use a single 25 amp CDR battery like the Sony VTC5A, then you are good for 75 watts per battery, 150 watts for two batteries, and 225 watts with three.

-If you use a single 30 amp CDR battery like the LG HB6 you are good up to 90 watts; with a pair of 30 amp CDR batteries you could safely do 180 watts.​

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

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

​

Good stuff man. Also to the OP, take note of the numbers next to the batteries. The higher the mAh, the lower the CDR usually is. Keep this in mind when you go into a shop and someone says "I got this 10,000 mAh with a 75 AMP CDR." The first question I'd ask - "Did you test that?" The second question I'd ask is "Who makes that battery?" If they tell you the name of the company that rewrapped the battery, pack up your stuff and .... of there. There are a few companies that usually put the Pulse Discharge Rate (PDR) on the batteries instead of the CDR. NEVER - under any circumstances, trust a PDR. EVER. Because as anything in this world - nothing is ever made exactly the same - every time.