The VAMO battery thread

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Strontium

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That's interesting...I'd like to find more info about the stated discharge capabilities of it. This looks to be a test of the same battery by my favorite battery guy: Test of Orbtronic 18650 2900mAh (Black) He typically lists the discharge ratings but no luck this time. I'm going to have to investigate a little more.

EDIT: Perhaps this is the same battery, but the length listed isn't the same; otherwise looks to be the same: Test of EnerPower+ 18650 2900mAh 3C (Blue)

It was on Twitter as a new product, I am sure some discharge specs will be there.
 

awsum140

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GotVapes is now carrying a 3200mah 18650 form factor battery. The Efests I have at the moment are doing quite well, so I'm in no rush. Plus at the rate things are going there will be a 4000mah out before it would get here if I ordered anyway. It is lithium/cobalt and unprotected. Sometimes, even with the protection circuits in the device itself, I wonder about carrying around so many watthours of power in my pocket or hand though.
 

meli.

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They'll work fine, they're high drain and have safe chem. As long as you don't do foolish things with them there is no reason for them to start acting crazy. Your Vamo's circuitry should take care of any failure as should the copper spring.

Ok I have an issue. I have been using efest 18350's. I have two sets of button tops for stacking in the vamo. I also have two of the flat tops for short mode. I do also have one Panasonic Cgr18650 2200mah. Now I rotate these and all come off the charger properly charged.....

However Im finding that all of these batteries do not last nearly as long as they should. With my vmax I could go a day and a half on two stacked 18350's. Now the same setup in the vamo doesnt last but maybe 9 hours before Im running for a new set of 18350's. Comparatively the 18650 only runs for maybe 8 hours, and a single 18350 lasts maybe 4-5 hours.

I run in RMS at usually around 6-7watts. Vovi novas, splitfires, carto tanks, all around 2.8-3.4 ohms. The batteries are from a trusted vendor one set of 18350's and the 18650 I have are brand new. Regardless of battery age they all have very short (imo) lifetimes.

After reading different people's battery life statements (even some self admitted chain vapers which i dont think I am) thos does NOT sound normal to me. Yesterday alone I went thru a set of 18350's, half the charge of the 18650, and one single 18350....

Thoughts or ideas? Should I contact the vamo vendor??

I have a pair of Panasonic NCR18650B (unprotected) 3400mAh they work very well and last 2 days. I have read they can last 3 days. I also have two pairs of CGR18650CH (one pair being less than a month old) and they last the best part of a day or about 7-9hrs. I don't bother with shorty mode I found the Efest 350 FT's only last 4hrs max. Yet as you say others claim their batteries last a lot longer.
This has made me curious. Why are my batteries draining faster?
I only use aga-t's 2.3Ω / 32g Kanthal on the Vamo normally vape about 3-5mls a day:blush: at 3.6v or 6-6.5w depending on which mode it's set to. In theory 2250mAh should last me 23Hrs. Yet for me this is not the case.
My Gripper VV seemed to give me better battery performance although I only used VN's on it. (Cotton/32gK/2.6Ω/3.2v/18-20hrs)

I have managed to convince myself the ohm's/wire size is playing role in this. Don't ask me why:facepalm:, I have no scientific proof, I'm totally ignorant when it comes to this sort of thing, for me it's all Magic:D. Nevertheless, I have placed an order for 34g Kanthal, will set new coils using the same ohm's and see if that will help increase battery life, I doubt it, but will try regardless and post findings if there are any significant differences.

Now, I'm not sure if it actually has anything to do with the Vamo's electronics. So far yours is the only post I've read concerning this issue, perhaps others haven't recognised this a problem yet. I'll admit I fell instantly and rather hopelessly in love with my Vamo, I cannot for the life of me be unfaithful to it yet, and sadly (for them) all my other PV's have fallen by the wayside, it's unfortunate that they simply cannot offer me the same vaping pleasure as my Quirky Vamo can, even so, it would be good to get to the bottom of this, I doubt we are alone in our experience.;)
 

bivie

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I also have two pairs of CGR18650CH (one pair being less than a month old) and they last the best part of a day or about 7-9hrs...Why are my batteries draining faster?

My situation is the same. Same batts as you - same vape time or less. I can use the
same batt in a mech mod and it will last days, but not in the Vamo. I've come to the
conclusion that the electronics in the Vamo are juice hogs. Of course, it gets pushed
a lot harder than my mech mods do cuz with them, what you see is what you get. With
the Vamo there are many avenues to explore - and some of them are high speed.
 

awsum140

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The bottom line about battery life is that if you run the device at a higher voltage than the rated terminal voltage of the battery the current requirement goes up, probably close to exponentially. Some form of inverter technology is used to "up" the voltage and inverters are not particularly efficient, aka draw lots of current. In "RMS" mode some form of oscillator or multivibrator is also being used which adds even more current draw. It doesn't matter is it says Vamo or Rolls Royce, if the device is pushed above the rated battery voltage, high current demand is present which, of course, shortens battery life.
 

Strontium

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Thanks Meli.

Bivie, Meli Next time you take out battery from your Vamo measure voltage from battery, and let us know.
It is 99% that your Vamo is cutting off too early, and plenty of "juice" is remaining in the battery unused.
When you said "charging fast", that means that battery is still probably 80% full...
 

xpen

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Meli,

yes Ohms are playing a role in this; at same wattage, higher resistance means less current being drained thus the battery will last longer; so you should raise your ohms (keeping the same W) to achieve better battery life.

I used to use 1.5 ohm resistances, and my batteries were lasting very very little... it eventually dawned on me that moving from 1.5 ohm to 3 would have helped, and indeed that was the case: now my batteries last considerably longer (say 20% or perhaps even more!) than they used to.

the PWM circuitry does take its toll when raising voltages, but it's somehow balanced by the lower current being sucked out of the battery. Up to a point, that is, there's no free lunch :D

And no, it's not vamo-specific: my provari behaves in the same way as the vamo. Maybe the provari's PWM is a bit more efficient, but at normal (aka sane) wattages it doesn't make a noticeable difference.

I've found thinner wire to be more reactive when firing, that's why I use almost exclusively 0.15mm Kanthal (34.5g), but I don't think it will make a difference with battery drain, other than you'll need to push the fire button for less time before vaping ;)

just be aware that with 0.15/0.16mm kanthal it only takes 3-4 wraps before getting in the 3 ohm ballpark, on an average-sized wick.


(...)
I only use aga-t's 2.3Ω / 32g Kanthal on the Vamo normally vape about 3-5mls a day:blush: at 3.6v or 6-6.5w depending on which mode it's set to. In theory 2250mAh should last me 23Hrs. Yet for me this is not the case.
My Gripper VV seemed to give me better battery performance although I only used VN's on it. (Cotton/32gK/2.6Ω/3.2v/18-20hrs)

I have managed to convince myself the ohm's/wire size is playing role in this. Don't ask me why:facepalm:, I have no scientific proof, I'm totally ignorant when it comes to this sort of thing, for me it's all Magic:D. Nevertheless, I have placed an order for 34g Kanthal, will set new coils using the same ohm's and see if that will help increase battery life, I doubt it, but will try regardless and post findings if there are any significant differences.

Now, I'm not sure if it actually has anything to do with the Vamo's electronics. So far yours is the only post I've read concerning this issue, perhaps others haven't recognised this a problem yet. I'll admit I fell instantly and rather hopelessly in love with my Vamo, I cannot for the life of me be unfaithful to it yet, and sadly (for them) all my other PV's have fallen by the wayside, it's unfortunate that they simply cannot offer me the same vaping pleasure as my Quirky Vamo can, even so, it would be good to get to the bottom of this, I doubt we are alone in our experience.;)
 
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meli.

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Thanks Meli.
Bivie, Meli Next time you take out battery from your Vamo measure voltage from battery, and let us know.
It is 99% that your Vamo is cutting off too early, and plenty of "juice" is remaining in the battery unused.
When you said "charging fast", that means that battery is still probably 80% full...
;) Strontium, I shall test and post numbers tomorrow. I normally remove batteries anywhere between 3.6v-3.2v place them in the charger straight away, once charged they go to the back of queue this way they get a good rest before next use.

By faster I mean the Xtar WP2II gives you a choice of settings, selecting 2 (1amp) setting for 18650 will charge faster compared to a Trustfire TR001, so a CGR'650CH will take 4hrs-ish whilst on the Trustfire it can take over 8hrs.
Selecting 1 (.5amp) setting is safer for '350's or those considered smaller batteries and will charge a '350 in about 2hrs-ish.

Also, because it's intelligent it won't continue to charge the battery. There is a charge that continues to feed the battery but it's tiny (approx. 0.11mAh) therefore if one did forget the battery in the charger it will only charge an extra 1.1mAh over 10hrs. I remember reading this on one of the Candle forums before I chose it.
So although, Best Practice is to remove batteries straight after charging it's not a road smash if you happen to forget once in a while. At time of purchase the same couldn't be said for the Trustfire although I understand they have corrected this but theirs is still slow (I think).
 

meli.

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Thanks Xpen, I think for those of us that have noticed poor battery performance should look at all these various and possibly contributing factors. I don't think any one factor is acting in isolation. So battery checks are also in order. I forgot to mention I don't switch my vamo off, Ever. I remember Kiwivap saying it still draws power from the battery when not in use but I can't remember how much of a draw.

I should receive my 34g (0.15mm) Kanthal A1 on Wednesday, I was worried with the wire being so thin coils would pop straightaway on the Aga-T (blasted thing!). I'll cotton wrap for faster results.:D
 

xpen

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The Vamo shows a noticeable degradation of performance when the battery goes below 3.5V, so I wouldn't care too much about any residual charge :)

Not sure if that's peculiar to my vamo and/or configuration, though...

Thanks Meli.

Bivie, Meli Next time you take out battery from your Vamo measure voltage from battery, and let us know.
It is 99% that your Vamo is cutting off too early, and plenty of "juice" is remaining in the battery unused.
When you said "charging fast", that means that battery is still probably 80% full...
 

xpen

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If you come from thicker wire, I think you'll be pleased with the 0.15mm/34g Kanthal quick response time; not quick like NiChrome wire, perhaps, but still noticeably better than the 0.20mm/32g!

About the standby current draw of the vamo, I'd assume it to be negligible under normal usage patterns.. And if you vape 3-5ml a day, I think your vamo gets little rest anyway (as does mine) ;)

Thanks Xpen, I think for those of us that have noticed poor battery performance should look at all these various and possibly contributing factors. I don't think any one factor is acting in isolation. So battery checks are also in order. I forgot to mention I don't switch my vamo off, Ever. I remember Kiwivap saying it still draws power from the battery when not in use but I can't remember how much of a draw.

I should receive my 34g (0.15mm) Kanthal A1 on Wednesday, I was worried with the wire being so thin coils would pop straightaway on the Aga-T (blasted thing!). I'll cotton wrap for faster results.:D
 
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xpen

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Ehm, 18 is the diameter... :D Perhaps 17340?

In case, nope. Especially because I don't think 17340 IMR batteries do exist, only Li-Ion and LiFePO4 (this latter not being good for the vamo). It's a really small-sized battery, if it isn't IMR it's probably not worth buying it.

Has anyone tried 18340 instead of 18350. Just a hair smaller in diameter. Specs are the same and fires the device.
 

xbassman

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Probably the 16340.....(same length as 18350)

AW makes an IMR, but it is only 550mAh.

Ehm, 18 is the diameter... :D Perhaps 17340?

In case, nope. Especially because I don't think 17340 IMR batteries do exist, only Li-Ion and LiFePO4 (this latter not being good for the vamo). It's a really small-sized battery, if it isn't IMR it's probably not worth buying it.
 

meli.

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Apologies for delay, yesterday turned out to be busier than I expected. Anyway, I checked voltage on the CGR'650CH (bought 01/16/12) as soon as it flashed LoV (3.2v) in vamo with multimeter. Wow my vamo is accurate, the reading was 3.21v. I measured a fresh rested battery too (same age) it was 4.2v on the multimeter so the charger is also accurate and not over/under charging. What I did not do is check the voltage on the battery (with MM) as the day wore on. I'm in all day today, so I'll concentrate my efforts better and test battery with MM as the day progresses. But now, I doubt it's the battery or the Vamo.

Xpen, I think you are correct, it's probably the power draw. I'm not sure if it's worth mentioning but I've also noticed when I hold down the fire button to heat the coil (AgaT) it takes about 3-4 sec's (clean coil) to take a decent draw of vapour as the coil gunks up it's more like 4-6seconds - that's a long time to hold down the fire button so maybe it is the coil set up. I'm not aware of anyone else having a similar experience.

Small note: I have tried using a stopwatch, I've learned I can't vape and keep time, heh.:blush::facepalm: ;)

The Vamo shows a noticeable degradation of performance when the battery goes below 3.5V, so I wouldn't care too much about any residual charge :)

Not sure if that's peculiar to my vamo and/or configuration, though...
Bivie, Meli Next time you take out battery from your Vamo measure voltage from battery, and let us know.
It is 99% that your Vamo is cutting off too early, and plenty of "juice" is remaining in the battery unused.
When you said "charging fast", that means that battery is still probably 80% full...
 

xpen

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You're not alone, about not being able to time and vape at the same time... same problem here! Tried and failed a few times, eventually gave up for good :blush: Heck, that's the only reason I'd ever buy an eVic: vape stats at your fingertip.

I have the same experience as you about gunked up wick/coil assemblies: the older they get, the slower they become in reacting; even if you dry-burn the wire, used wire seems always slower than new one. Probably, is the oxidation layer on it.

The wire diameter also plays a role in that: I expect your new 0.15mm/34g Kanthal to make some positive difference in pre-vaping/heating time, wait and see... ;)

Apologies for delay, yesterday turned out to be busier than I expected. Anyway, I checked voltage on the CGR'650CH (bought 01/16/12) as soon as it flashed LoV (3.2v) in vamo with multimeter. Wow my vamo is accurate, the reading was 3.21v. I measured a fresh rested battery too (same age) it was 4.2v on the multimeter so the charger is also accurate and not over/under charging. What I did not do is check the voltage on the battery (with MM) as the day wore on. I'm in all day today, so I'll concentrate my efforts better and test battery with MM as the day progresses. But now, I doubt it's the battery or the Vamo.

Xpen, I think you are correct, it's probably the power draw. I'm not sure if it's worth mentioning but I've also noticed when I hold down the fire button to heat the coil (AgaT) it takes about 3-4 sec's (clean coil) to take a decent draw of vapour as the coil gunks up it's more like 4-6seconds - that's a long time to hold down the fire button so maybe it is the coil set up. I'm not aware of anyone else having a similar experience.

Small note: I have tried using a stopwatch, I've learned I can't vape and keep time, heh.:blush::facepalm: ;)
 

kiwivap

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Nevertheless, I have placed an order for 34g Kanthal, will set new coils using the same ohm's and see if that will help increase battery life, I doubt it, but will try regardless and post findings if there are any significant differences.

I've been using 34 awg kanthal and standard ohms for my coils and my battery life has been ok. I haven't noticed any significant increase in drain.
 
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