Passing 4.2V?

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Rafael Amorim

New Member
Sep 22, 2018
2
4
Hello,

Yesterday I bought a geekvape aegis legend 200W with 2 removable batteries. I'm using an Ello 4 tank with .5 resistances.
So the lady at the store advised me to never go past 4.2V on the mod, however I'm getting 4.2V with only 35W, I would like to increase to at least 40W, however that goes past the voltage recommended by the lady.
Is there any way I can go to 40/45W without damaging the battery/device?

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Rafael Amorim

New Member
Sep 22, 2018
2
4
My batteries are Samsung INR 18650 - 25R - 2500mAh and my mod goes up to 10 Volts at 200W, never done that since the lady told be I couldn't pass 4.2V and go under 3.7V. I had an eleaf ikuun200 and never worried about anything except the watts I felt comfortable (but he went to the swimming pool)

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sonicbomb

Vaping Master
ECF Veteran
Verified Member
Feb 17, 2015
8,362
23,817
1187 Hundertwasser
The lady is clueless, please ignore her.
The information on the screen about volts and amps is what is being sent to the atomizer, not what is being drawn from the batteries and is essentially useless information. The regulator chip will take care of things for you, that is what it does.
Your batteries have a 20 amp CDR which means that the maximum safe wattage you can use is 120 watts. This is the essential information you need.

Please read and digest the articles I have posted below which will help you gain a better understanding of your equipment and batteries and how I came to the above statements. Please feel free to ask any more questions you have.

Understanding Battery Capability/Capacity | E-Cigarette Forum

Battery Safety | E-Cigarette Forum

Ohms/Watts Law - Calculating safe amp usage | E-Cigarette Forum
 

Baditude

ECF Guru
ECF Veteran
Apr 8, 2012
30,394
73,076
71
Ridgeway, Ohio
My batteries are Samsung INR 18650 - 25R - 2500mAh and my mod goes up to 10 Volts at 200W, never done that since the lady told be I couldn't pass 4.2V and go under 3.7V.

Hopefully, you just misunderstood what the sales lady was telling you. Or she is an idiot. I hope what she was saying was to never charge your batteries higher than 4.2 volts. That's the maximum charge these lithium ion batteries can take safely.

Are you charging your batteries in the mod via microUSB or using an external charger? If you ever have a battery that charges higher than 4.2 volts, it is either a bad battery or a bad charger.

You can adjust your mod's settings as low or as high as you want. The regulator chip in the mod has protections which will keep you from doing anything that could be harmful to the chip.

Your Geekvape Aegis Legend is advertised as being a 200 watt mod, but those kinds of claims are highly dependent on the amp rating of the batteries you use. As Sonic explained above, your two Samsung 25R batteries will provide you with a maximum of 120 watts (60 watts x2). You would need to use two 30 amp batteries to even get close to 180 watts.



-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
363984-e565e32efab1e4227719866a9a8b957c.jpg

Sony 18650VTC6 3000mAh 15 amp CDR
413691-6d99870bef0f9d8bd4cfb656baac2f7b.jpg

Up to 60W:
LG 18650HG2 3000mah 20 amp CDR
346357-b4b716723a22088fab0a5bf10f1b49ad.jpg

LG 18650HE4 2500 mah 20 amp CDR
373819-b889be4c74fcdafa3f81b77387c1039f.jpg

Samsung 18650-25R, 2500 mah 20 amp CDR
480893-f9aa259b6278bd14930b251db599258b.jpg

Sanyo UR18650NSX, 2500 mah 20 amp CDR
378261-aaf8c523bf96f24707f538807755e5d3.jpg

Sony 18650VTC5, 2600 mah 20 amp CDR
376248-b8539a19e3674529dd18c0d4a7b45fbd.jpg

Sony 18650VTC4, 2100 mah 23 amp CDR
375725-e80826e842f37ec825e3c9d326022214.jpg

AW 18650 3000 mah 20 amp CDR
325518-b1cded3a91492daa95e632f2c614f271.jpg

Up to 75W:
LG 18650 HD4 2100 mah 25 amp CDR
385835-3a8df09a46862337422b3b76a151fcf0.jpg

LG 18650 HD2 2000 mah 25 amp CDR
376922-73545b66ab0955890ea3cc74c9adb39f.jpg

Samsung 18650-24S, 2500 mah 25 amp CDR
567779-1876260dcd39b9dcc8127176faccf541.jpg

Sony 18650VTC5A, 2500 mah 25 amp CDR
397493-cc91892a31586c163dc419ce4bd3e8dd.jpg

Up to 90W:
LG18650HB6 1500mah 30 amp CDR
380919-214d0ffa29b60f062ba7640627ad5605.jpg

LG18650HB2 1500mAh 30 amp CDR
377182-6c570506e6ae8e85f30ce64b386a8f13.jpg

LG18650HB4 1500mAh 30 amp CDR
380403-c8fa9e7b310e40c393b6edff15726a5f.jpg

Samsung 18650-20S 2000mah 30 amp CDR
567575-254dcc9f3000323cb489ab10e8b02d13.jpg
 
Last edited:

Hawise

Ultra Member
ECF Veteran
Mar 25, 2013
1,660
4,269
AB, Canada
I'm just dropping in in case you want another internet stranger to confirm what the rest have said. There's definitely a misunderstanding somewhere - either you misunderstood her, or she misunderstood how batteries work. The advice is so strange that I'm inclined to think the fault lies with her.

You have Samsung 25 R batteries (good batteries, by the way). A fully charged 25R is at 4.2 v. Charging it higher than that would certainly damage it, but it would also be hard to do without a faulty charger. Its voltage will drop as it discharges. Some people like to recharge it when it reaches 3.7 v or so. 3.2 - 3.3 v is more common, and that's also usually when your mod will tell you that your battery is low. If it ever happens to drop below 2.8 v or so, the battery will be damaged and should be replaced immediately - don't try to use it again.

The voltage you see on your mod is not the battery's voltage - it's something else entirely. As others have already explained, the chip in your mod can convert the energy it takes from the battery and deliver it to the coil in a different form. That's the whole point of a regulated mod, actually. That number can go over 4.2 v perfectly safely. If the chip needs to 'boost' the voltage for the coil, it'll just pull more amps from the battery and convert that into a higher voltage.

What does matter for safety is the number of amps your mod is taking from the batteries. Samsung 25Rs have a 20 amp CDR, meaning that you can take 20 amps from each battery safely (although it's best to stay a bit below that limit). A 20 amp limit means you can go up to 60 watts per battery; your limit would then be 120 watts, if I'm correct in thinking that the Legend is a two battery device. In other words, with the batteries you have, 40 watts is no problem at all.
 

BrotherBob

ECF Guru
ECF Veteran
Dec 24, 2014
14,099
12,435
Sunnyvale,CA,USA
Yesterday I bought a geekvape aegis legend 200W with 2 removable batteries. I'm using an Ello 4 tank with .5 resistances.
So the lady at the store advised me to never go past 4.2V on the mod, however I'm getting 4.2V with only 35W, I would like to increase to at least 40W, however that goes past the voltage recommended by the lady.
Is there any way I can go to 40/45W without damaging the battery/device?
Welcome and glad you joined.
I have provided a little more information which might help choosing/evaluating batteries.
Might like to read:
Calculating battery current draw for a regulated mod | E-Cigarette Forum
http://www.wakeandvape.com/blog/18650-battery-buying-guide-for-vapor-users/
Index | E-Cigarette Forum
http://pegasusvaporacademy.com/2017/07/06/pva-18650-resistance-capability-chart/
http://pegasusvaporacademy.com/2017/07/06/pva-18650-wattage-capability-chart/
Battery Safety: Will You Marry Me? - Mt Baker Vapor
A Guide to Safe Charging - The Complete Guide to E-Cig Safety
Vaping 101: Battery Safety
7 Best Practices to Keep Your Charge
 

madstabber

Vaping Master
ECF Veteran
Verified Member
Jan 20, 2013
3,961
7,061
Concoction Creating Cave
What the folks above me have said is correct. The lady at the vape shop is INcorrect. This is quite common unfortunately as it seems people with little knowledge or worse yet incorrect knowledge are being hired at these places. If you have any more questions please come back. This place is a wealth of knowledge and can answer any questions you may have. In the off chance someone gives you the wrong advice, ten people will correct them in short order. Good luck and if you’re ever back in that vape shop and see that woman, you can quiz her on all you’ve learned here.
 

RigBick

Senior Member
ECF Veteran
Mar 29, 2018
250
479
56
Clearwater, Fl
Hopefully, you just misunderstood what the sales lady was telling you. Or she is an idiot. I hope what she was saying was to never charge your batteries higher than 4.2 volts. That's the maximum charge these lithium ion batteries can take safely.

Are you charging your batteries in the mod via microUSB or using an external charger? If you ever have a battery that charges higher than 4.2 volts, it is either a bad battery or a bad charger.

You can adjust your mod's settings as low or as high as you want. The regulator chip in the mod has protections which will keep you from doing anything that could be harmful to the chip.

Your Geekvape Aegis Legend is advertised as being a 200 watt mod, but those kinds of claims are highly dependent on the amp rating of the batteries you use. As Sonic explained above, your two Samsung 25R batteries will provide you with a maximum of 120 watts (60 watts x2). You would need to use two 30 amp batteries to even get close to 180 watts.



-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
363984-e565e32efab1e4227719866a9a8b957c.jpg

Sony 18650VTC6 3000mAh 15 amp CDR
413691-6d99870bef0f9d8bd4cfb656baac2f7b.jpg

Up to 60W:
LG 18650HG2 3000mah 20 amp CDR
346357-b4b716723a22088fab0a5bf10f1b49ad.jpg

LG 18650HE4 2500 mah 20 amp CDR
373819-b889be4c74fcdafa3f81b77387c1039f.jpg

Samsung 18650-25R, 2500 mah 20 amp CDR
480893-f9aa259b6278bd14930b251db599258b.jpg

Sanyo UR18650NSX, 2500 mah 20 amp CDR
378261-aaf8c523bf96f24707f538807755e5d3.jpg

Sony 18650VTC5, 2600 mah 20 amp CDR
376248-b8539a19e3674529dd18c0d4a7b45fbd.jpg

Sony 18650VTC4, 2100 mah 23 amp CDR
375725-e80826e842f37ec825e3c9d326022214.jpg

AW 18650 3000 mah 20 amp CDR
325518-b1cded3a91492daa95e632f2c614f271.jpg

Up to 75W:
LG 18650 HD4 2100 mah 25 amp CDR
385835-3a8df09a46862337422b3b76a151fcf0.jpg

LG 18650 HD2 2000 mah 25 amp CDR
376922-73545b66ab0955890ea3cc74c9adb39f.jpg

Samsung 18650-24S, 2500 mah 25 amp CDR
567779-1876260dcd39b9dcc8127176faccf541.jpg

Sony 18650VTC5A, 2500 mah 25 amp CDR
397493-cc91892a31586c163dc419ce4bd3e8dd.jpg

Up to 90W:
LG18650HB6 1500mah 30 amp CDR
380919-214d0ffa29b60f062ba7640627ad5605.jpg

LG18650HB2 1500mAh 30 amp CDR
377182-6c570506e6ae8e85f30ce64b386a8f13.jpg

LG18650HB4 1500mAh 30 amp CDR
380403-c8fa9e7b310e40c393b6edff15726a5f.jpg

Samsung 18650-20S 2000mah 30 amp CDR
567575-254dcc9f3000323cb489ab10e8b02d13.jpg
I love this shpeil. Learn it and walk it out.
 
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