Battery level & power output

[BostonSean]

I'm using a Vamo 7 with VW. Since I got it I've noticed that when the battery hits 60% it's not putting out anywhere near the power it should regardless of the fact I have it set to the same wattage. I switch out the batt and bam - it's good again. Now I seem to be noticing it happens *earlier*! Current battery shows 80% and it's weak. What is the deal with this? Shouldn't it be able to output the amount of watts I choose until it's almost dead?

Either my assumption is incorrect, or my batteries are ....., or the Vamo reading is wrong. Which is it?

FTR - these are MNKE IMR-18650's and I switch between 2.

 

[samturdo]

try the same battery in different mods and see if its the battery or the chip in the mod thats the issue

 

[samturdo]

oh and yes, in a variable wattage mod it should stay the same until the battery gets low enough that this isnt possible, then it will or should give you a low battery warning of some kind

 

[BostonSean]

Thanks, that's what I thought. I don't have another mod to test in but both batteries exhibit this behavior. I have an iStick on the way but it has an internal batt... I did order a new battery for this too though (diff brand, well known) so I guess that ought to tell me if it's the mod or the battery.

 

[VHRB2014]

Our V5 has a noticeable drop off at abut 3.7 and below. Ya, its not supposed to that, but it does it. And we have googles of battery's,
but that`s just the way it is.

 

[ProjektMayhem]

Does your version have the option where you can set it to RMS or Mean mode? Hold the button that you hold to read your resistance down for a while and it will tell you if it's in mean or rms mode. You want it on RMS.

 

[BostonSean]

Does your version have the option where you can set it to RMS or Mean mode? Hold the button that you hold to read your resistance down for a while and it will tell you if it's in mean or rms mode. You want it on RMS.

No, not that I'm aware of. Google doesn't seem to know anything about RMS/mean on this mod either.

With a fresh batt is runs for like half a day with me hitting it pretty much constantly so if thats the way it is I guess I can live with it. It's something I would research in the future before a purchase though

Live and learn, right?

 

[Alien Traveler]

My Vamo 5 has a drop when battery reaches 3.4 V. I know it, so I can go up. I really like vamo's interface, it allows to change V/W without even looking at the mod; I change settings often - some tanks like lower wattage after filling, I like lower settings in the morning and higher when drinking...

 

[Ryedan]

With a fresh batt is runs for like half a day with me hitting it pretty much constantly so if thats the way it is I guess I can live with it. It's something I would research in the future before a purchase though

Live and learn, right?

Yup, it is important to research things before buying. I leaned that the hard way too . OTOH, this issue is probably pretty easy to fix. Your battery goes pretty quickly from 4.2v to 3.9v and then spends a lot longer at 3.8-3.6v. Try increasing the wattage setting when you notice the power dropping and that it should put it back to the original actual power output and it might just stay there for a while.

 

[BostonSean]

OTOH, this issue is probably pretty easy to fix. Your battery goes pretty quickly from 4.2v to 3.9v and then spends a lot longer at 3.8-3.6v. Try increasing the wattage setting when you notice the power dropping and that it should put it back to the original actual power output and it might just stay there for a while.

I bump watts around all day so I *think* I've tried this before, however I didn't put a lot of real thought into it - just got agitated and swapped the battery. I'll be more thorough when this fresh one drops