Is my cell fine? Accidently discharged it tor 3v, damaged?

[The60WattGUY]

Guys i have a question,
I was vaping a mech but i accidently vaped it down all the way till 3V is when my charger said when i put it back in, i read online this is bad did i damage my 30T samsung 21700? Or charge it up and is fine,i usually never let it reach this

 

[BillW50]

3.0v is okay.

 

[The60WattGUY]

3.0v is okay.

Yea hope the charger reads it correct xtar vc2 but it said 3v yea its 3000mah battery lol charge it back up litterly took like 2980 mah or something, but yea i will watch more carefully luckily its fine ?
My regulated cuts it off at 3.4 tho

 

[ShowMeTwice]

Like Bill said, 3.0v is okay. You didn't damage your battery.

With mechs I always replace a battery when the hits become noticeably weaker. For me, that's normally around 3.4v - 3.5v.

 

[somdcomputerguy]

Ya, depleting a (n e-cig) battery down to 3 volts is pretty low, but not a low enough level to put it in the 'not safe enough to recharge' zone. There is a line to be drawn though and I think, think, it's 2.something volts. I know there are others here, most notably Mooch, who know about this for sure.

 

[ShowMeTwice]

IIRC a li-ion cell can be safely discharged to 2.5v.

Please, tell me if I am mistaken, so I can correct the above.

Personally, I would never go below 3v on a mech mod because that's just cutting it too close for comfort.

Samsung 30T spec sheet attached for reference.

 

[The60WattGUY]

@ShowMeTwice Yea hopefuly my charger displayed it correct and it did say 3v so im good for now? Yea next time ill change battery as soon as the vape is weaker

 

[The60WattGUY]

Oh sweet pdf says 2.5 so i shouls be good ,i hope it will still work as good as before tho thats important too @ShowMeTwice

 

[The60WattGUY]

@somdcomputerguy Yea thanks dude as long as it still work as good and no performance is lost, i checked the pdf it did say cutoff is 2.5 so im prob fine

 

[ShowMeTwice]

Oh sweet pdf says 2.5 so i shouls be good ,i hope it will still work as good as before tho thats important too @ShowMeTwice

@somdcomputerguy Yea thanks dude as long as it still work as good and no performance is lost, i checked the pdf it did say cutoff is 2.5 so im prob fine

In a mech the battery will not cutoff at 2.5v. There are no protections when using a mech. You are the only protection!!!

The 2.5v cutoff mentioned in the PDF is for the engineers who design the battery packs used in power tools, lawn gear etc.
2.5v cutoff is what Samsung, and other li-ion manufacturers state, under use with those kinds of products.

Also certain a hit around 2.6v, 2.8v or even 2.9v would be very very weak on a mech.

More info:

How critical is the 2.5V cut-off voltage for Li-Ion battery life?

Hello, usual ‘3.7V’ Li-Ion batteries show in their data sheets: 2.5V cut-off voltage for discharge and 4.2V for charge I know about the meaning and consequences regarding the ‘4.2V’… I never charge up to 4.2V (but this should not be the topic of this thread….) This ‘4.2V’ is the reason that I...

budgetlightforum.com

and

How far can LiIon be discharged?

lygte-info.dk

Be safe Brother.