New 18650 Question

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zapped

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Reading the reviews it looks like they are really only 2100 MaH...its not unusual for battery manufacturers to exaggerate the batteries power.

That being the case I would just get some AW IMR's from RTDVapor. You can buy two of those for a little more than one of the panasonics you listed. Keeping them in rotation, they'll likely last longer than a single battery too.
 

Rader2146

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Those are a true 3400mAh battery, but the rating is based on a very light load (.2C) and running it down to 100% discharge (2.5v).

An eCig is never going to take a battery down to 100% discharge, and will always discharge at a much heavier load. So the usable capacity of that battery is around 2000-2200 mAh. A low power flashlight or a mod with stacked batteries would be able to utilize more of the available energy, but a single cell mod cannot.

Stick to the high drain IMRs or hybrids. They are recommended for good reasons.
 

mda71

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Strontium

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Would this battery be ok to use in my Provari?

It is a 3400mah 18650 and I hope it will give me a little more use outta my Rig.

Thanks!

Those (Panasonic NCR18650B) will beat AW IMR anytime.

Too bad you cannot use them in your Provari, because you need unprotected 18650 with a nipple top.

But, you are the only one who answered your own question (correctly). You would get longer vaping time with these batteries.

IF

You can find them unprotected with a top nipple.

3400mah rating is from Panasonic as I know. So it is for real.
 

BShan

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Another +1 for the panasonic 3400mAh.

battery questions go here:
Battery test-review 18650 comparator

Bare cell is easily better than an AW IMR 2000mAh, even holds its voltage longer than the 1600mAh high drain IMR from AW.

Protected cells you will need to do your research. Some vendors just slap on a standard protection PCB. Others will actually pick or make a PCB designed for the safe discharge limits of that particular cell.

Also, don't forget that the NCR series has safety enhancements that increase cell IR in the case of a dead short, along with all the standard safety features of ICR.
 

Rader2146

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And following the logic of usable capacity AW 2000mAh IMR would give you less than 1500mAh.

2100mAh versus 1500mAh is the big difference.

The AW IMR 2000mAh will hold about 1800mAh down to the cutoff voltage at a pretty stout wattage.

What is not being talked about is the underlying factors. It's easy to talk about average current and look at battery charts and specs. How about peak current and voltage sag? Ever notice that some APVs will hit the low voltage cutoff EXTREMELY early with ICRs but an IMR will provide hours of use?

Like I said above, High drain IMR/hybrid is recommended for good reason.
 

Strontium

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Under conditions where AW holds 1800mah, new Panasonic cell will hold over 3000mah.
I completely agree that high drain batteries are recommended, but times are changing at very fast pace.

New Panasonic batteries are not classic ICR batteries and do not behave like ICR.

Yes, I am taking into consideration voltage sag, and peek current.

There is simply no space for IMR to expand, it is old formula,and obviously Japanese are continuously working on something new and better.

New Panasonics are really good batteries it will only take time before ppl realise that.
 

Rader2146

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Refer back to post #3...
An eCig is never going to take a battery down to 100% discharge, and will always discharge at a much heavier load.

The Panasonic 3400mAh will never use >3000mAh in a single cell APV.

3 amps, or about 7-9 watts from an APV. The red lines are typical cutoff voltages under load.
AW2000-Pan3400_zps8a04fcd9.png


CGR18650CH-Pan3400_zps07ad44c9.png


Where do you get your info about how the "NEW" ICR batteries behave? You can't increase the energy density of the metals, you can only stuff more metal in the tube by making certain things thinner....usually the important things like the separator linings. If you abuse the battery, it will still fail in the same manner that any other ICR would.

Peak current can, fairly easily, reach over 6A in Chinese pulsed output APVs. Skirting the ragged edge of the max discharge rate a little too close than what many would be comfortable with.

The 3400mAh Panny's ARE very good batteries....for flashlights.....but not for a single cell APV. There things happening in an APV that are transparent to the average person. Unless that person has a FULL understanding of how their APV works inside, they have no business even entertaining the thought of using an ICR in a single cell VV or VV/VW APV. Recommending an ICR to the average vaper that knows little about what happens inside their APV could possibly be putting them in danger. All to gain a couple hundred mAh? NOT worth it.
 

Strontium

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Once I have enough time I will explain more:

You are comparing IMR bare cell to the wrong cell. Enerpower ??
Scroll down to the Panasonic NCR3400B and then compare them.

Safety
this NCR Panasonic cell is much safer then IMR.

You are absolutely right about many things, but I am saying what is obvious.
Will explain later...
 
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