18350 batt question

[kornon]

Hi guys so i recieved my new vamo in the mail today along with 2 18350 AW IMR batts cause im gonna stack to get the best out of the mod and going on RMS mode

my question is, when i check the batt power remaining on the device with both batts in it says 7.8v being a kinda newb my question is what voltage are two completely full 18350s i have no idea what that voltage means when checking it, i dont know anything about how much life it has left and what not, those numbers dont mean anything to me, im used to percentages of life left or a little batt picture with how much life is left in the batt

thanks

 

[DesmondTheMoonbear]

A fully charged 18350 will read 4.2 volts and the device will cut of and show a Lo message around 3.4, so two fully charged stacked will read 8.4, and should cut off at 6.8 or so. Just so you know, stacked batteries can get burned taste out of your juice really quick. I stay in mini mode with my VAMO and just keep one in the device and one on the charger at all times.

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[Jerms]

I'm not positive, but I think the lowest your VAMO will let you go with stacked batteries is 6.4 volts, as 3.2 is the lowest it'll go with one battery. I would suggest actually recharging before it get's even that low. I recharge mine at about 3.5, so would probably do it at 7 if I stacked.

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[kornon]

thanks for the response really appreciatte it one more question though, if i just use 1 18350 the only diff will be the vape time? or does just having one affect the amount of wattage i can vape a carto at, like if im vaping my current juice and carto at 8.5W right now with stacked batts can i also do that with just one bat? will it drain it faster if i go higher?

 

[Jerms]

It depends on the resistance of your carto how high you can go. Stacking batteries will raise your amp limit. Around 11 watts is the highest you will get with a single battery, while you can get up to 15 watts with stacked. As I never vape at the 11+ watt range, I stick with a single battery. If you don't need the extra amps, you will get about the same charge time with one 18650 as two 18350s.

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[Jerms]

Also, if you stack, don't occasionally use just one of those batts in shorty mode. The two you use to stack should be twins, always used together and always charged together.

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[jclifford]

Back to my RC helicopter hobby, LION cells should never be allowed to go below 3.2 volts. If they do, they should be discarded. Very dangerous to try to bring them back. It is possible but not recommended. I posted a pic in another thread. 3 cell pack with a bad cell, I decided to attempt the re-charge. It ended up catching fire and destroyed about $500 worth of helicopter electronics. IF you are interested do a youtube search on "RC heli fires" and you will see some amazing video's, most caused by defective LION packs. When charging multiple cell packs the batteries should be balanced. In my multi-cell heli chargers this is done by the charger. Last, LION do not develop a memory like the old ni-cads. You can top them off anytime you want.

 

[denali_41]

there is another thread here about another problem the evic has [smh] if you leave the batts in it and leave it powered on ?? two users have reported it drained the battery down to 1.5 volts

 

[DesmondTheMoonbear]

thanks for the response really appreciatte it one more question though, if i just use 1 18350 the only diff will be the vape time? or does just having one affect the amount of wattage i can vape a carto at, like if im vaping my current juice and carto at 8.5W right now with stacked batts can i also do that with just one bat? will it drain it faster if i go higher?

I use my VAMO at a minimum of eight Watts, all the way up to fourteen Watts(depending on the juice). One 350 will last me about 5 hours vaping between once every minute or so to once every ten seconds(I'm a chain vaper (; ) On a 2.4 vivi head at an average of 11 Watts or so, it will give me the "Lo" message at around 3.5 v battery level, but if i bump the wattage down to eight or so Watts i can get about another half hour or so out of the battery, but i usually just change it at that point.
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[Jerms]

I use my VAMO at a minimum of eight Watts, all the way up to fourteen Watts(depending on the juice). One 350 will last me about 5 hours vaping between once every minute or so to once every ten seconds(I'm a chain vaper (; ) On a 2.4 vivi head at an average of 11 Watts or so, it will give me the "Lo" message at around 3.5 v battery level, but if i bump the wattage down to eight or so Watts i can get about another half hour or so out of the battery, but i usually just change it at that point.
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PBusardo did a video where he tested the actual watts delivered using a single battery compared to stacked batteries. Using a single battery, the PV is delivering only about 11 watts no matter how much higher you set it. A battery can only deliver so much power before it hits it's limit. If you want it to deliver higher than 11, you need to stack.

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[DesmondTheMoonbear]

PBusardo did a video where he tested the actual watts delivered using a single battery compared to stacked batteries. Using a single battery, the PV is delivering only about 11 watts no matter how much higher you set it. A battery can only deliver so much power before it hits it's limit. If you want it to deliver higher than 11, you need to stack.

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That's good to know, thank you . Any idea if the same applies to a single 18650 battery? Also, do you know the program he uses to assess these things with devices that don't utilize usb connections?

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[Jerms]

That's good to know, thank you . Any idea if the same applies to a single 18650 battery? Also, do you know the program he uses to assess these things with devices that don't utilize usb connections?

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Same applies with 18650, since both sizes deliver the same voltage. I think it has something to do with amp limit, but I remember the result better than the explanation. No idea what he uses for a program, but he has equipment that shows the results in real time and he does a really good job graphing everything and explaining it. If you want to watch the video the website is tasteyourjuice.

If think the watt limit is based on the coil's resistance, but I need to watch the video again.

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