Help : Vamo 2 batteries

[Jerri Dowling]

we rebuild our own coils for our Kanger MT3s and The genesis, My husband runs them on a vamo 2 and looking to upgrade his batteries that came with it (2 gray little short ones) when i rebuild coils i cant seem to get them under 3 ohms and he cant get them above 2 ohms but with running coils that high they drain the battery on his mod quicker, does anyone know where we can get decent high drain batteries for a vamo 2

 

[State O' Flux]

The arrangement with a V2 is that you can run a single 18350, a pair of 18350s... or a single 18650. You're looking for "IMR" LiMn batteries. I won't get into all the brands other than to say genuine AW or Efest are most commonly recommended... here's a "reference view" for these batteries.
As his APV is regulated, you don't want "high drain" in the sense of a 30a 18650 (which are used in mechanical mods)... but rather high mAh.

You don't say what wire, what diameter or how a many wraps... so can't offer much for the coils. Here's a spread sheet with common coil configurations.

 

[classwife]

Moved from eGo Type Models to Variable Voltage APV Discussion.

Edited title from Help to Help : Vamo 2 batteries

 

[Jerri Dowling]

Currently hes using a kanthal 32 guage wire at 4 wraps its like 3 ohms so we are having to dubble wrap the wire (twisting it together) at 4 or 5 wraps to get 1.8 ohms, will be goin down to a lower guage wire next week have to order some. i will look at the reference chart for the batteries thank you

 

[Jerri Dowling]

thanks so much classwife, still trying to learn all of the ins and outs sorry greatly appreciated

 

[Jerri Dowling]

The arrangement with a V2 is that you can run a single 18350, a pair of 18350s... or a single 18650. You're looking for "IMR" LiMn batteries. I won't get into all the brands other than to say genuine AW or Efest are most commonly recommended... here's a "reference view" for these batteries.
As his APV is regulated, you don't want "high drain" in the sense of a 30a 18650 (which are used in mechanical mods)... but rather high mAh.

You don't say what wire, what diameter or how a many wraps... so can't offer much for the coils. Here's a spread sheet with common coil configurations.

You're looking for "IMR" LiMn batteries.???

Can i ask what imr LIMn means? im looking at getting batteries from fastech? and i dont see any of those batteries ?

 

[Baditude]

There are three classes of lithium ion (Li Ion) batteries:

ICR - These are often just called Li-ion batteries. Only the protected Li-ion ICR batteries should be used in a mod. These are used in mechanical mods in low drain applications (factory-made coils in clearomizers or cartomizers).

IMR - These are often called IMR, Li-Mn (lithium manganese), "high drain", safe chemistry, and un-protected batteries. These are used in regulated mods (VV-VW), mechanical mods using a Kick or RBA/RDA's, or as a safer alternative to ICR protected batteries.

Hybrid - a mixed chemistry battery which includes components of Li-Mn and ICR batteries. Most of these are considered high drain and safe chemistry like the IMR batteries are.

I've written a couple of blogs on mod batteries which go into a more detailed explanation:

Battery Basics for Mods: IMR or Protected Batteries?

Deeper Understanding of Mod Batteries

 

[Jerri Dowling]

ok i have read and printed the articles on mods and batteries and am goin to let my husband read them later tonight: i think i kinda understand- but im only incharge of the footwork lol!!! do u have a specific battery for 18650 that u would personally reccommend- he works graveyard so is gone for 8 hours at a time

 

[State O' Flux]

ok i have read and printed the articles on mods and batteries and am goin to let my husband read them later tonight: i think i kinda understand- but im only incharge of the footwork lol!!! do u have a specific battery for 18650 that u would personally reccommend- he works graveyard so is gone for 8 hours at a time

In first place would be AW IMR. RTD Vapor (in previous links) carries them, as well as Lighthound... and they are genuine AW. In second place would be Efest IMR batteries.

 

[Jerri Dowling]

ok thank you
i will let him know

 

[Road_House]

My Vamo came with 2 of the 18350 batteries and they are 800 mah. When you use both together you get ~8.4 volts fully charged as they are in series. The mah total should still be 800 though as that stays the same when batteries are in series.

I don't know enough about the circuitry to be able to say if you would get longer vape time on 2 18350 in series versus 1 single battery with everything else being equal as far as the ohms, volts and watts he is running at. Maybe the Vamo is able to milk the full combined 1600 mah out of both batteries and it's not enough if he chain vapes a lot?

I can tell you that my VTR has a 18650 rated at 2000 mah and that lasts a full 24 hours on a 1.5 ohm dual coil atomizer vaped at ~8 watts.

Two of those or maybe even higher (2400 mah?) would provide uninterrupted vaping, use one, charge one. Thing is, I hate the Vamo in long mode. It's just too looooong. Your hubby may not mind. You didn't mention if he was using it in long or short mode.

 

[Jerri Dowling]

he uses it in long mode and chain vapes and loves to vape up at the 4.8- 5.5 volts
idk the watts he vapes at. after looking at the batteries he wants the panasonic 18650B NCR 3400 mah, can someone tell me what kind of charger we need and where to get them

 

[Traver]

Do you know how many volts he is vaping at and how much below 2.0ohms does he go?

 

[Baditude]

do u have a specific battery for 18650 that u would personally reccommend

I'll also recommend the AW IMR 18650 2000 mAh, but either the Panasonic or Orbtronic NGR18650PF 2900 mAh battery will outperform the AW. You can find the Panasonic at RTD Vapor and Orbtronic and of course find both at Orbtronic.

 

[Jerri Dowling]

Do you know how many volts he is vaping at and how much below 2.0ohms does he go?

he uses it in long mode and chain vapes and loves to vape up at the 4.8- 5.5 volts likes to run the 1.8- 2.2 ohm coils that he makes himself

 

[Road_House]

he uses it in long mode and chain vapes and loves to vape up at the 4.8- 5.5 volts
idk the watts he vapes at. after looking at the batteries he wants the panasonic 18650B NCR 3400 mah, can someone tell me what kind of charger we need and where to get them

Many to choose from out there. Here's what I have.

Intellicharge i2 Charger

WOW, so he's in the 14-17 watt range with a 1.7 ohm atomizer. No wonder those shorties die so fast. Better get him 3 and never leave the house without 2 fully charged

 

[Traver]

The AW and the Panasonic that have been recommended are excellent batteries so I think that part has been taken care of.

Have you considered that his batteries aren't lasting simply because he vapes a lot and uses a lot of power. At 1.8 ohms and 4.8 volts he is using 12.8 watts. That is going to drain any of these batteries.

As for the charger if he is going to stack batteries I really recommend one with an led that will allow him to read the voltage when he puts the batteries on and when he takes them off. Stacked batteries are inherently more dangerous than singe batteries. They must be paired and in the same condition. Never use two batteries that come off the charger at different voltages.

I use the Xtar VP1 because it has an LED with a voltage readout among other things.

May I ask as to why he is stacking batteries?

 

[Jerri Dowling]

currently he is stacking batteries because his mod came with 2 18350s ( the little short ones). hes using it in long mode will be ordering the panasonic batteries on thurs (payday).

 

[Traver]

Thanks for your answer and I am happy to see that he switching to a single battery.

As for the 18650B NCR 3400mah battery it has a slightly different chemistry than the older Li-ion lithium batteries and I can't say I know enough to understand it. I am not sure if you would get a longer run time with it than something like the 2900 PANASONIC NCR18650PF HIGH DRAIN.
It just my opinion but for safety and considering the small difference in actual capacity I would go for the hybrid 2900. If he does buy 3400 let us know what you think of them.
I'll try to explain but not sure how clear it will be.

You would think that a battery with higher milliamp rating would last longer than one with a lower milliamp rating. Well, maybe, it turns out that those ratings are often determined at very low watts which will result the highest milliamps ratings for the battery. Unfortunately that's not the way we use these batteries. So the ratings are only an approximate guide for us.
We use more power and that tends to heat the battery and cause the internal resistance go which in turn causes the battery to get hotter which causes the resistance to go even higher and so on. That why there is a maximum discharge amp rating on batteries and current limiting chips on our PV's for these batteries. If the maximum discharge amp rating is exceeded that self feeding cycle can cause the battery into a runaway thermal condition. Rapid venting, fire or explosion.

With higher the voltage we come closer the that maximum discharge amp rating and the battery drains even faster. So a battery with higher milliamp rating may drain faster than one with a lower milliamp and a higher discharge capacity.

Below is an online ohm calculator;
Ohm's Law Calculator

 

[Jerri Dowling]

Just an update we have decided to order the EFEST 2000 mah batteries from discount vapers !!! will be ordering about 3 of them