Battery resting?

[Fuzzy Bruce]

I have heard that after charging, a battery should have a rest period and not be used right away. Would really like some info on this.

I have twelve batteries and use four mech mods during the day. I usually charge two batteries at a time so they will not be used the next day. Just wondering about resting them fully charged or should they be rested after use.

Rarely do any of my batteries get discharged lower than 3.8 volts.

 

[KGB7]

As long as they dont get warm then can you use them right out of the charger. Typically a battery will get warm is when its charged at high amperage, or when used excessively in a mech mod.

So once the battery has reached room temp, you can place it in to a charger or in to a mod from a charger.

 

[440BB]

I read here some time ago that giving a battery a period of time for it's chemistry to "settle down", for lack of a better term, helps prolong their life. I normally wait a half hour after my last vape on a battery to charge. My charger stops upon a battery reaching 4.2 volts, then I give it a half hour or so before using. I am getting very long life from my batteries, but I don't know if it really makes much difference.

 

[Nermal]

As I heard the story, they only need to rest for maybe 30 minutes after charging, but not after use. I have no idea if this is true.

 

[tehmidcap]

Yeah from doing a bunch of reading before I got my mods I've seen a few claims that you should rest the batteries 30-60 minutes after charging before using; but don't recall ever seeing anything suggesting to rest batteries before charging (until now).

 

[PaulBHC]

I posted this in another thread and didn't really get a reply. Maybe I should start a new thread. Below the quote is my text from that thread:

Quote Originally Posted by TaketheRedPill View Post
Hi Andria ECF'ers decided a loooong time ago that it was best to let batteries rest after coming off the charger. Here's the Library article authored by Rolygate :

Rechargeable Batteries
'"
Rest batteries after charging
One commonly-reported factor in almost all the incidents we hear of where batteries failed violently while in use is that they were taken directly off the charger and then used immediately, at which point they failed.

Because of this, we think it may be a good idea to rest batteries after charging them. This advice will not be found in the usual 'reference bibles' on batteries, but we see more and different reports than others. Therefore we now advise:

Do not use batteries directly after charging them. Use a battery or batteries you previously charged, and that have rested for several hours. This is especially important if using a stacked pair for higher voltage, as statistically the risk is far higher."


also, from Battery University, I think the reason why is they're agitated from charging:
Recognizing Battery Capacity as the Missing Link – Battery University


"A battery requires few hours of rest to regain equilibrium..... Loads and charge currents distort the voltage further, but one of the largest challenges is the flat discharge voltage curve of some lithium-based systems. This is especially evident with lithium-iron phosphate."


So, it might be ok to take a battery off the charger to put in a flashlight or something like that, but where ecig type batts are concerned I've always let the batts rest.

Hope this helps

Just had a long discussion with the wife about this. We have MVPs and regulated tubes with IMR batteries.

Two things puzzle me about resting batteries.

What about passthrough devices like the MVP and what about these new box mods with usb charging of 18 series batteries in the mod?

Most people with either of these are likely to grab and go as soon and the charge has finished or even before.

 

[tehmidcap]

Same goes for Ego-type batteries as well as cell phones and a lot of other electronics with similar batteries, really.

Maybe that's why my egos never lasted more than a month or two... I usually used them until they were completely dead and I would often use them immediately after charging.

 

[AndriaD]

I posted this in another thread and didn't really get a reply. Maybe I should start a new thread. Below the quote is my text from that thread:



Just had a long discussion with the wife about this. We have MVPs and regulated tubes with IMR batteries.

Two things puzzle me about resting batteries.

What about passthrough devices like the MVP and what about these new box mods with usb charging of 18 series batteries in the mod?

Most people with either of these are likely to grab and go as soon and the charge has finished or even before.

Same goes for Ego-type batteries as well as cell phones and a lot of other electronics with similar batteries, really.

Maybe that's why my egos never lasted more than a month or two... I usually used them until they were completely dead and I would often use them immediately after charging.

I tend to do this too, with my vv3's, always have, whereas with my removable batteries, I charge them immediately after their removal, and rarely ever go below 3.5v before charging, and then I let them rest after charging till the next day, when I need them.

The only time I've ever done the 'resting' *before* charging was one night when the battery *seemed* a bit warmer than usual when I removed it. Which might have totally been my paranoid imagination, but always better safe than sorry. I let it rest for about an hour, till it was cool, before I put it in the charger, and it charged and performs exactly as usual -- which is why I think it was just paranoia, thinking it was warmer than usual -- I was probably chain-vaping!

Andria

 

[Baditude]

I posted this in another thread and didn't really get a reply. Maybe I should start a new thread. Below the quote is my text from that thread:



Just had a long discussion with the wife about this. We have MVPs and regulated tubes with IMR batteries.

Two things puzzle me about resting batteries.

What about passthrough devices like the MVP and what about these new box mods with usb charging of 18 series batteries in the mod?

Most people with either of these are likely to grab and go as soon and the charge has finished or even before.

Nice references from legitimate scientific resources. You can't go wrong quoting Battery University. And Rolygate (our ECF administrator) is a long time battery safety expert. Rechargeable Batteries

Concerning the MVP and iStick regulated mods (as well as eGo batteries), they use a Li-po battery, which is a different chemistry than the external Lithium batteries we use in mods using external batteries. I've not done any research on whether resting a Li-po battery is advised.

 

[Thrasher]

I agree with resting after charging.sometimes fresh from a charger using a good Dmm I see the voltage jumping up and down, not much but it is active. In the beginning this even freaked me out enough to get a different charger as I hadn't learned yet about settling the battery