Battery question

[dk28]

so im fairly new to vaping im trying to understand sub ohm vaping with batteries, i dont know why i have im having a hard time understanding this. im trying to be safe with settings for my battery. i have an evic mini just bought a uwell crown tank and have a Samsung 25r battery. so my question is im vaping at 55w or so on a .25 ohm coil and that brings volts up to 4v (says my vape) but battery is only 3.7. is that ok that my voltage is higher than my output voltage on battery as long as im not over my 2500 mah rating. will that just make it die faster. if someone could shed some light that would be awesome. i do have electrical experience but never really knew too much about batteries.

thanks !

 

[BPROSEK]

Hey there, I jumped into the battery game a bit ago so I might not be as knowledgeable as many on here, but here's what I understand.
With a regulated mod the chip is calculating everything unlike an unregulated mod (or regulated mods that have a "bypass" feature) that run directly off the available voltage from the battery. Your evic mini is drawing the required power from your battery to provide you the 4v firing your .25coil at 55watts, it will keep doing so until that level of charge is no longer available from the battery. At which point your mod is going to alert you to "low battery" and you will need to swap your drained battery for a freshly charged cell. Obviously running your mod at higher wattages will drain the single battery faster as this requires more volts. It is advised to not let batteries discharge too low as this can lead to premature demise of the battery, so probably best to swap it out for a fresh one when you notice the battery indicator getting low.

Not sure if my explanation made much sense, but simply put, yes you are okay. I'm sure another member will chime in and do a far better job explaining what I am trying to say In the meantime enjoy your evic and crown, I have both and love them! Things start getting a bit more detailed from a battery standpoint as you get into dual/triple batt mods, in the meantime make sure you have a couple batteries and a good charger, always have a fresh one ready to go (store in proper case, never loose in your pocket etc), and swap it out when time to charge the drained cell.

 

[5150sick]

It may not last as long per charge but if you mean die earlier as damage the cell then no.
You have the correct battery for the mod you are using.
You have a regulated device so it has protection circuitry that will make the mod 98% safer than a mechanical.
That atty, tank, mod, battery setup is a very good and safe one.

If you have any more questions or need me to help you explain anything please feel free to post it here.

Vapers helping Vapers is why i'm here.
By the way my name is Tom and it was great chatting with you.

 

[5150sick]

Here is a great ohms law calculator in case you need it:

http://www.onlineconversion.com/ohms_law.htm

Here is a more technical one but the other is better for beginners and experienced vapers alike.

http://www.steam-engine.org/modrange.asp

 

[dk28]

perfect thanks alot!

 

[Number3124]

So, the answer is that the 3.7v figure is the nominal voltage of the battery. If you think of a battery is a gas canister voltage is the pressure the gas is under. Li-ion 18650 cells have a nominal voltage of 3.7v, but they're fully charged at 4.2v. The voltage will drop off to 3.7v after a short time and hang out at 3.7 for a while. Most mods have a cut off at 3.2v.

The chip is indeed monitoring everything. If you need 4v and the batteries are down to 3.7 it will demand more amperage (current) until the amp load exceeds 20 or 30 amps or so. It varies from mod to mod depending on how many watts it purports to supply. It converts the amps to volts via the transformer on the chip.

As the others said, a regulated mod is 98% safer than a mech. Also, as a rule of thumb, a single 20 amp 18650 cell can supply up to 75 watts safely, though you'll be going through batteries like crazy at 75watts.