Apollo vtube / Lava tube voltage question.
- Thread starter RobFindlay
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I usually swap out at around 3.6 because I vape at a higher voltage and I can tell there is a voltage drop, they say not to go lower then 3.5v with the aw imr battery so it's probably time for a fresh battery
A 3.7v battery off a fresh charge will usually manage to be around 4v-4.25v strength, thus it is possible for the LT to read that the battery has 4v charge remaining.
I'm guessing the device uses a capaciter to "spool" the available voltage up to where ever you set it. The 7 click thing simply shows the raw voltage output before being stepped up. However as previously mentioned when it drops below a certain point it can only "spool" up a certain amount and can't reach the voltage you're setting.
There is some feature as well that drops the voltage automatically to 3.0 if your atty can't handle the voltage your sending it.
got this right off the website:
Regulated output which keeps the voltage the same with each puff - regardless of the remaining battery power. As the battery drains, the device will keep the voltage consistent
Regulated output which keeps the voltage the same with each puff - regardless of the remaining battery power. As the battery drains, the device will keep the voltage consistent
A subject that has caused endless hour of debate and continues to do so at times....
The 3.7v rating comes the average or the level the current delivers consistently. Most 3.7v rechargeable batteries will top off at around 4.1-4.2 (any higher than 4.25 is an over charge and damage the battery and potentially make it unsafe) in use the charge can fall rapidly in some slower in others and the voltage levels off and holds at around 3.7v for a time then tapers down...
My understanding of lithium batteries is that you should never go over 3.2 volts. You should check you charger to make sure it doesn't trickle charge after reaching 3.2 volts. Many cheap chargers will do so creating a dangerous situation.
You may want to read this and learn a bit more about batteries.
Lithium-based Batteries Information
You may want to read this and learn a bit more about batteries.
Lithium-based Batteries Information
I have run the batteries completely dead on my Lavatube a couple of times. They quit functioning at 3.4v for me. They do seem to have less punch shortly before they croak, but not too much before. When they are done, they are done. At least that's been my experience.
You aren't running the batteries dead just reaching the safe cutoff set for the switch.
My tube has no cut-off it would seem. Without thinking about it I did take a batt down to 3.1 (according to the tube) before it just didn't seem to fire the atty. LCD was dimmed out too.
The point that you REALLY, REALLY, REALLY shouldn't go below with a 3.7V lithium is 2.7. That's what PCB based overdischarge cutoff circuits are set to. That's why if you have a battery that measures 3.1V on your meter, and you try to use it in, for example, certain power hungry flashlights, you'll get a quick flash of light before the circuit cuts the battery off. The loaded voltage is 2.7 or less.
2.7V is a bare minimum, and you should never let your battery get that low. Even if it's not dangerous, it significantly reduces the batterys life. Personally, I try not to let it drop below 3.5V with no load. If I'm sitting around the house, I'll swap batteries when I get to 3.7 or even 3.8 or 3.9V. Right now, I can vape for several hours on an 18650 before the voltage drops from 4.2 to 3.9.
That's the good thing about lithiums. Unlike the old Nicads, they have no memory effect. You don't need to deplete them before recharing them to keep them in good shape like the old Nicads. Charging them 10 times when they're 10% depleted only counts as 1 cycle. With Nicads, that would be the same as depleting them and recharging them 10 times, so 10 cycles would be cut off their life, even though you've only used 1X their capacity.
Basically, you cannot recharge lithiums too soon or too many times. A cycle is only counted as the total capacity drawn out and put back in.
2.7V is a bare minimum, and you should never let your battery get that low. Even if it's not dangerous, it significantly reduces the batterys life. Personally, I try not to let it drop below 3.5V with no load. If I'm sitting around the house, I'll swap batteries when I get to 3.7 or even 3.8 or 3.9V. Right now, I can vape for several hours on an 18650 before the voltage drops from 4.2 to 3.9.
That's the good thing about lithiums. Unlike the old Nicads, they have no memory effect. You don't need to deplete them before recharing them to keep them in good shape like the old Nicads. Charging them 10 times when they're 10% depleted only counts as 1 cycle. With Nicads, that would be the same as depleting them and recharging them 10 times, so 10 cycles would be cut off their life, even though you've only used 1X their capacity.
Basically, you cannot recharge lithiums too soon or too many times. A cycle is only counted as the total capacity drawn out and put back in.
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By the time you get to 2.7v you are doing permanent damage to the battery. Anything below 3v is the danger zone and harms the batteries life span. Might as well stop at 3.5v since the difference in capacity between 4.1v to 3.5v and 4.1v to 3.0v is around 5%.
source: I work with EVs
source: I work with EVs
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