Question about bettery (1st charge and discharge)

[tntmux]

Hello, I just got my vamo with 2xpanasonic cgr18650ch 2250mah betteries.
I would like to know, do I need to pay any attention to the 1st charge? Should it be fully charged for the 1st time before any usage? Leave it charging for 12+ hours? Cause I am eager to try my vamo....and after 3hours charging these things are still not fully charged.

Another concern is that I heard some vamo (maybe all of them) failed to check low voltage of the bettery, so the voltage of a bettery can go really low and it will cause some premature discharge problem. Thats why I also would like to know, at what point (3.1v 3.0v?) I should stop using it and put the bettery back to charger?

Thanks.

 

[degnr8]

The first charge can take a while since you're going from "empty" but it won't hurt anything to use it before it's fully charged. The "battery memory" problem people are always warning about doesn't actually apply to lithium batteries. As far as when to swap the batteries, when it stops giving you satisfying vapor

 

[Vapor Vinny]

The first charge can take a while since you're going from "empty" but it won't hurt anything to use it before it's fully charged. The "battery memory" problem people are always warning about doesn't actually apply to lithium batteries. As far as when to swap the batteries, when it stops giving you satisfying vapor

I thought the memory issue did apply to lithium? What does it apply to?

 

[jclifford]

memory applies to ni-cad batteries, Li Ion batteries do not develop a memory. You can "top them off" anytime you want.

Li Ion batteries are normally shipped at a "storage" charge, about 3.7 volts. It is always recommended to give them a full charge prior to first use. I do not know why, that is what the manufacturers always recommend.

 

[Vapor Vinny]

That is good to know. I assume ego are powered by lithium batts?

 

[CookingWithGuns]

I know the priming charge is an old wives tale, but what about charge cycles? I thought they don't start to decay for 18 months. Do excessive charging cycles accelerate the breakdown?

 

[degnr8]

Depends on who you ask. A battery is good for a certain number of charging cycles. Some people (usually hobbyists) will tell you that charging a half full battery uses up a charging cycle so you should wait til it's dead. Others (including me and battery manufacturers) say that charging a half dead battery uses half a charging cycle. I build passthroughs on all my mods and generally charge my batts whenever I get the chance.

 

[vapo jam]

Another concern is that I heard some vamo (maybe all of them) failed to check low voltage of the bettery, so the voltage of a bettery can go really low and it will cause some premature discharge problem. Thats why I also would like to know, at what point (3.1v 3.0v?) I should stop using it and put the bettery back to charger?

i believe vamo's are supposed to auto cut-off at around 3.2-3.3v, so if for any reason yours doesn't, that's about when you should charge it.

 

[CookingWithGuns]

Depends on who you ask. A battery is good for a certain number of charging cycles. Some people (usually hobbyists) will tell you that charging a half full battery uses up a charging cycle so you should wait til it's dead. Others (including me and battery manufacturers) say that charging a half dead battery uses half a charging cycle. I build passthroughs on all my mods and generally charge my batts whenever I get the chance.

I just had a chemist tell me today that the cycles don't affect battery life too much (though more so if you put it through full cycles from empty to full), but the "cycle life" of batteries listed is roughly an estimate of how many times someone would likely charge it over its normal lifetime (roughly 18 months I think she said)

 

[Penn]

I once spoke with an engineer at a battery manufacturer. What some here have said is correct. Li ion doesn't have memory effect.

To some extent your charger or internal protection board are the most important factors in battery life. Half charging cycles don't "take a full charge cycle". The enemy of a battery is the heat created in a charging cycle. Heat will happen. With a good charger, the battery will never reach full heat in a half charge. Some chargers or protection boards will slow the charge if it detects too much heat which makes those good. Some will continue to give a trickle even if the battery is charged. That would be bad but not catastrophic. So to answer one question, no, leaving it on the charger is NOT recommended unless the charger is good quality and working correct.

 

[kiwivap]

Hello, I just got my vamo with 2xpanasonic cgr18650ch 2250mah betteries.
I would like to know, do I need to pay any attention to the 1st charge? Should it be fully charged for the 1st time before any usage? Leave it charging for 12+ hours? Cause I am eager to try my vamo....and after 3hours charging these things are still not fully charged.

Another concern is that I heard some vamo (maybe all of them) failed to check low voltage of the bettery, so the voltage of a bettery can go really low and it will cause some premature discharge problem. Thats why I also would like to know, at what point (3.1v 3.0v?) I should stop using it and put the bettery back to charger?

Thanks.

The batteries you are using don't have a "memory".
There is a manual for vamo users here:
http://www.e-cigarette-forum.com/forum/vamo/359600-vamo-vv-vw-v2-user-manual-download.html

Vamos cut off when the battery voltage is 3.2 volts. I haven't heard of any where the battery voltage went really low. I don't know where you got that idea from. I've seen a couple of posts from you now and I think you will benefit from reading the user manual which I've linked here for you, and that will help you to get familiarised with your device.

 

[tntmux]

Thanks for all the advices, seems I worried too much for my batteries.

 

[stealthmayhem]

will cause some premature discharge problem.

Thanks.

I hate it when premature discharge happens..............and so does she.

 

[AttyPops]

Penn beat me to it. I just happened to read a Battery University article about heat. Even for lead-acid batteries (like your car battery)...it's the heat. A battery will have double the lifespan at 70 degrees F than it will at 90 (or some such figure, not quite sure of the #'s). I think that was for Lead-Acid but Li-Ion batteries are very sensitive to heat. And if the heat causes the electrolyte to bread down....that's a bad thing. Boom.

I have a cordless trimmer that uses Li-Ion that I'm cautious about. I store the batteries inside, not in the garage. The user manual even cautions about charging them over 90 F.

So car batteries die faster down south in the USA than they do up north. Of course, -20 F up north isn't too great for them either...but that's not the point here.

I like my fairly SLOW Li-Ion battery charger. Everyone thinks they want a fast charger. lol. Nah. I want my charger to take it easy. Charging builds up heat.

 

[tntmux]

The batteries you are using don't have a "memory".
There is a manual for vamo users here:
http://www.e-cigarette-forum.com/forum/vamo/359600-vamo-vv-vw-v2-user-manual-download.html

Vamos cut off when the battery voltage is 3.2 volts. I haven't heard of any where the battery voltage went really low. I don't know where you got that idea from. I've seen a couple of posts from you now and I think you will benefit from reading the user manual which I've linked here for you, and that will help you to get familiarised with your device.

Yes vamo is supposed to cut off at 3.2v, but what happened to a friend is his vamo keep working at 3.1v(I think I read somewhere on this forum and another user also had this problem)...thats why I asked. Thanks for your advice and document anyway. My vamo came with nothing but a simple paper box, no introduction at all..

 

[kiwivap]

Yes vamo is supposed to cut off at 3.2v, but what happened to a friend is his vamo keep working at 3.1v(I think I read somewhere on this forum and another user also had this problem)...thats why I asked. Thanks for your advice and document anyway. My vamo came with nothing but a simple paper box, no introduction at all..

3.1 volts is not dangerous. IMRs can usually go down to 2.5 volts before it becomes an over-discharge problem. I wouldn't go that low, but they can before its an problem. Knowing your batteries is important. However - I've not seen anyone say the Vamo was going past the cutoff, and mine has never worked once the battery got to 3.2 volts. I think you need to take some time to get familiar with the device, and read more of what users here have shared.

 

[Visus]

Your vaping experience will alert you right away when the battery is low. You can always tell, you get like 4 or 5 puff type vapes and then boom it shuts off. It does it every time.

I used to think it needs, add more juice at finale 3-4 puff thin type vapes and then it would shutoff with an overfilled and leaking cart and no vape at all, it happened multiple times before I knew, now pro lol.