Reo battery question

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Filthy-Beast

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The battery hits a little hard just off the charger, then quickly settles down and stays very consistent until the voltage starts to drop below 3.65 to 3.7. This is when most people seem to notice a drop in performance. I use two batteries a day and change sometime in the afternoon. I used VV/VW for two years, Darwins, eVic, Lavatube, Kicks, etc. This was something I was very worried about when I first looked at the Reo, it turnout out to be none issue for me. After one day with the Reo I wondered why I waited.
 

SeaNap

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A fully charged batt @ 4.2V with a 0.8ohm coil = 22watts of power. After about 8 - 10hrs of use my 18650 gets down to about 3.7V, with the same 0.8ohm coil = 17watts. There is some decrease in power, and you will eventually notice it, but it's not that drastic of power loss. You will still get a good vape and good flavor with a batt at 3.7v but it just wont hit quite as hard as a fresh set.

I put a fresh batt in every morning, then swap it out at about 6 -7pm.

edit: I mistyped the 3.7V watts, sorry, good catch Matt
 
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johni

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A fully charged batt @ 4.2V with a 0.8ohm coil = 22watts of power. After about 8 - 10hrs of use my 18650 gets down to about 3.7V, with the same 0.8ohm coil = 19.5watts. There is some decrease in power, and you will eventually notice it, but it's not that drastic of power loss. You will still get a good vape and good flavor with a batt at 3.7v but it just wont hit quite as hard as a fresh set.

I put a fresh batt in every morning, then swap it out at about 6 -7pm.

^^^Exactly the same here. Same resistance coils, same battery routine, good vapes all day.
 

johni

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ALL... Friggin'... DAY

When I first got it I would bring extra juice, cotton for wicks, tools, spare batt... Now, nothing (I leave some cotton in my car tho just incase). And every single hit is like a freight train. It's so incredablly low maintenance, I love it.

Amen! Gotta laugh when I see someone carrying a small suitcase or toolbox full of vape gear every day!
 

JC Okie

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Amen! Gotta laugh when I see someone carrying a small suitcase or toolbox full of vape gear every day!



This. Ha. I go to a local B&M some days (Vapor Kings) and it's hilarious to see so many of the vapers carrying around SOOOOO much stuff. One of the regulars always brings his entire tool box full of stuff every time. Evidently he carries it with him everywhere. And they all have tube mods with tanks.....and all they talk about is which leaks the least....all the while they're refilling them with their syringes.... I sit there with my REO and just feel smug (although I don't ACT smug, you understand.....)
 

Matthee

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A fully charged batt @ 4.2V with a 0.8ohm coil = 22watts of power. After about 8 - 10hrs of use my 18650 gets down to about 3.7V, with the same 0.8ohm coil = 19.5watts. There is some decrease in power, and you will eventually notice it, but it's not that drastic of power loss. You will still get a good vape and good flavor with a batt at 3.7v but it just wont hit quite as hard as a fresh set.

I put a fresh batt in every morning, then swap it out at about 6 -7pm.

My Ohm's calculator says that should be 17 Watts?
 

JayTater

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This. Ha. I go to a local B&M some days (Vapor Kings) and it's hilarious to see so many of the vapers carrying around SOOOOO much stuff. One of the regulars always brings his entire tool box full of stuff every time. Evidently he carries it with him everywhere. And they all have tube mods with tanks.....and all they talk about is which leaks the least....all the while they're refilling them with their syringes.... I sit there with my REO and just feel smug (although I don't ACT smug, you understand.....)

I have to laugh, because that used to be me.. Now its just a pair of Reos, and a spot of cotton behind the bottle. Tweezers everywhere though..
 

JC Okie

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I have a question about ohms law. Do you figure the volts under load or not?

.....not. :) Is that a loaded question? Maybe I shouldn't be answering....maybe I don't know what I'm talking about....maybe. I just use it to figure out what ohms to shoot for on a coil to get to the wattage I like. In my formula, it's just the pure voltage of the batteries coming off the charger doubled then divided by the resistance of my atty. The wattage will change a little under load because the resistance will have some "static" or interference from other things that affect it. OR.....maybe I should let one of the electrical wizards answer this.....Hmmmmm
 
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ltrainer

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.....not. :)
Heres where my confusion lies. You set up two Grands with the same ohm coil and both have 4.2 volt fully charged batteries. One has been set up with a voltage drop of .5 and the other at .1. Other than the voltage drop they are identical PVs. If you use ohms law at 4.2 volts the wattage computes the same on both. However because of voltage drop differences the wattage will be different with the PVs.....I think. More voltage is available with the .1 voltage drop so watts would be higher.

So I guess I don't get it. Wouldn't you measure the voltage at the posts of the coil which takes into account the voltage drop and use that figure to compute wattage using ohms law?
 

Filthy-Beast

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To get a true watts being delivered to the coil yes, but I don't typically go into that. The most important number in a ohms calculator for safety is amps being sucked from the battery which would include the voltage drop so 4.2 is the right number.

Or another way to look at is the battery is delivery all of those watts, some are being wasted before they get to the coil.

EDIT: The new kit from Rob will improve the efficiency and waste less watts before they get to the coil.
 

Mudflap

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When I leave the house, I usually grab my VV Grand with fully charged 18350's and a full juice bottle. Hassle free, baby.

The 18650 Reos work great too, but all of my AW IMR 18650's have been through several charge cycles and drop from 4.2 volts to 3.6 volts considerably faster than when they were new. They still perform perfectly fine for lounging around the house vaping.

Sometime this year I will buy a bunch of new AW IMR 18650 and 18350 batteries, drop all of my exisiting inventory in a recycle bin for lithium batteries, and start fresh.
 
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