sb 18650 bat!!! How long should i charge it???

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MiamiMom63

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I'm not sure what you mean. Also, use battery safety. Never charge when you are sleeping or leave the house. Rest your battery about 30 mins. after charging and before you use it. Also, rest your battery about 30 mins. after you have used it and before you charge it again. If the plastic casing on your battery gets torn, toss it. It could short your mod due to the exposed metal. 18650 batteries should be handled carefully. Other than those precautions, I usually just charge mine fully till the light goes off, but there are different types of chargers out there that I'm not familiar with.
 

RickMc

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It doesn't have a memory, per se. However, "short cycling" it will lesses the battery life, if you measure battery life in how many amps it will deliver in its lifespan. Based on the studies I have seen published: Best is to discharge it about halfway (I think that will take you to the point that it's delivering about 3.5V) and then recharge.

Without a meter or a PV that tells you output, you would probably have to "vape to dead" and then divide the time it took you (of average use) in half.

At the end of the day, 18650 batteries are cheap. "Buy extras and don't worry" is also a good option. :)
 

MiamiMom63

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Hmmm. That's alot of technical info I'm not familiar with. Sorry. I guess it might also depend on what type of 18650 batts you are using. I use AW IMR's (safe chemistry) batts. There are you tubes and alot of info out on battery safety and such, I'm sure. My IMR's seem to last quit awhile. If anything, I waste more by the casing being torn accidentally and my electrical tape not quite getting the job done on them.
 

Baditude

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If anything, I waste more by the casing being torn accidentally and my electrical tape not quite getting the job done on them.

Am I understanding that you are repairing torn battery casing with electrical tape? :shock:

If so, STOP !!

A battery with torn or otherwise damaged insulation (the skin or casing) is a catastrophic event waiting to happen. This could result in a battery going thermal, venting toxic hot gasses and possibly burning you or causing a fire.

The batteries used in APV's are extremely powerful considering their size and nothing to play around with. Always inspect batteries routinely for defects, and invest in a voltmeter ($15) to check voltages after coming off the charger and after being spent in the APV.

View attachment 141289
 
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Rader2146

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I'm not even sure where to begin.....:facepalm:

From the top:

-Charge at your convenience. Partial charges won't hurt it. In some ways it's actually better, but that depends on how you look at it....long explanation and its already late. There in no "memory effect" with lithium batteries. Full discharges aren't as bad as everyone makes it out to be. Battery University says that partial discharges will prolong the life of lithium batteries. But what most don't grasp is that they measure "life" in charge cycles. If you only use half of its charge before recharging, in the end you will have recharged twice as often. So you really aren't getting a longer life (measured in months or years), you just get to charge more often and carry needless spares so you an swap out a battery that is still half full.

-Resting batteries before and after charging is nonsense. Do you turn you laptop off, wait 30 min, charge, wait 30 min, and then turn it back on? There are usually 4-6 18650 Li-Ion battries inside your laptop. Same question for your cellphone...lithium inside.

-A damaged jacket/wrapper/casing/sleeve is not the end of the world. Granted it does depend on the type of battery and where it is damaged. IMRs or other batteries that don't require a protection circuit, realistically don't even need a jacket. The entire outer casing is the negative pole. The little (usually black or white) disk that is around the positive button is the important piece that separates pos from neg. Electrical tape, duct tape, scotch tape, anything that will prevent metal to metal contact will do fine. If you're the kinda person that likes to pull your own teeth, you can get the actual battery heat shrink and re-wrap the whole thing....http://www.e-cigarette-forum.com/fo...replace-battery-wrapper-jacket-pic-heavy.html
 

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ShogaNinja

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Am I understanding that you are repairing torn battery casing with electrical tape? :shock:

If so, STOP !!

A battery with torn or otherwise damaged insulation (the skin or casing) is a catastrophic event waiting to happen. This could result in a battery going thermal, venting toxic hot gasses and possibly burning you or causing a fire.

The batteries used in APV's are extremely powerful considering their size and nothing to play around with. Always inspect batteries routinely for defects, and invest in a voltmeter ($15) to check voltages after coming off the charger and after being spent in the APV.

View attachment 141289

If it's just a plastic label then I don't agree. If anything has happened to the metal casing itself then I agree 100% with Baditude. There are 3 things that cause catastrophic runaway thermal reactions to lithium ion batteries. 1: physical damage. 2: Heat, lots and lots of heat - aka fire can cause it, obviously, or charging the battery in high temperatures (above 120° Fahrenheit). 3: overcharging the unit once the battery's voltage protection circuit has failed (no way of telling until it happens). Always attend the batteries while they charge and do use a Li-Po fireproof charging bag whenever possible. Here's a link to one for $2+shipping: Lithium Polymer Charge Pack 18x22cm Sack

Anyone who tells you otherwise needs to do more research. BTW: the average lithium ion battery is good for 300 full discharges and 300 full recharges. At that point, regardless of brand, ALL lithium ion batteries lost 30% of their capacity permanently. It is at this time that all sensible vendors recommend that you replace the battery, not only for optimum performance, but also to be safe in case the protection circuit fails. Partial discharges and partial subsequent chargings can number in the thousands before this loss in capacity, but it is very important that you do the research. On average a lithium ion or lithium polymer (for those KGO VV users out there) battery is good for 10 months if you charge it every day; 1 year, 8 months if you charge it every other day, and so on.

That said, all lithium ion batteries, once they fall below 2.2v (IIRC) will go into a sleep mode and will not recharge. It is possible to "wake" them, but I cannot recommend it to anyone less than a professional in such matters. Should you wait until they hit 0v (due to natural discharge via the energy drain of the protection circuit) they will allow themselves to recharge again. Recharging them after this happens will guarantee a runaway thermal reaction since the protection circuit will die in this event. Lithium Ion batteries, as a result of this fact, should be stored ideally with a 70% charge and recharged at LEAST every few months. When you store batteries at 100% charge it is very bad for their lifespan - though they do quickly self-discharge within several months). That is to say, keeping them fully charged for months or even years is very detrimental to their longevity.

NEVER overcharge your batteries (average charge time is 2-3 hours) and NEVER charge them while unattended, ESPECIALLY when you are asleep. It's very rare that a battery vents, but it does happen, and your life should be important enough to you not to roll dice and take chances.

If you'd like to learn more about batteries, or vaping in general please click on the link in my signature to the Vaper's Handbook. Do yourself a favor and absorb 8+ months and countless hours of research in a very short time, for free. You can also learn more specifics about the different battery types, as I did, at: http://www.batteryuniversity.com
 
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