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Author Topic: Panasonic CGR18650CG  (Read 9291 times)

Offline soupwvu

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Panasonic CGR18650CG
« on: August 21, 2014, 02:53:23 PM »
Has anybody tried them? if so are they comparable to a VCT5?
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Offline al666

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Re: Panasonic CGR18650CG
« Reply #1 on: August 21, 2014, 03:11:01 PM »
Absolutely nothing like a VTC5 - Not even IMR chemistry. Probably only 5 to 10 amps continuous discharge current rating if they anything like the other batteries of similar type made by Panasonic.

If you are looking for a hefty 18650 just go for the Sony VTC4/5, 1600mah AW IMRs or Efest purples and be done with it :)


Offline danwldr

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Re: Panasonic CGR18650CG
« Reply #2 on: August 21, 2014, 03:32:09 PM »
 :]++

I have a couple

Don't use them anymore
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Offline CraigHB

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Re: Panasonic CGR18650CG
« Reply #3 on: August 21, 2014, 05:25:38 PM »
They can do the job for you if you don't need an unusually high output.  They have a capacity of 2250mAh and drain limit of 10A, compared to a Sony VTC5 or LG HE2 which has a drain limit at least 20A and a capacity at least 2500mAh.  Though unless someone is giving the CGRs to you, I wouldn't spend the money on them.  You can get better performance with the better cells.

Offline failte

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Re: Panasonic CGR18650CG
« Reply #4 on: August 21, 2014, 06:22:46 PM »
I like to stick to one brand/model of cells (in my case, Sony VTC4/5).  That way I don't have to worry about "whether the battery is safe for this application" as long as I don't go below 0.15 Ohms, and I see no reason to do that, since I'm not a cloud-chaser.
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Offline G_BexXx_

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Re: Panasonic CGR18650CG
« Reply #5 on: August 21, 2014, 06:43:06 PM »
Been using these since ive started vaping.. havent had any issues, old technology cell wise but unless your trying to sub ohm with em they do just fine. I think the lowest i went on em was .8
 Edit: i just looked at my batteries to dbl check and theyre the CH not the CG

Offline CraigHB

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Re: Panasonic CGR18650CG
« Reply #6 on: August 21, 2014, 07:30:16 PM »
The CG and CH models are pretty much the same, no major differences in spec.  They're not "bad" batteries, they're just older models that don't have the cutting edge performance of the newest models.  Its true they are not IMR cells, but they use a proprietary chemistry that supposedly has similar safety to an IMR cell.

Offline soupwvu

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Re: Panasonic CGR18650CG
« Reply #7 on: August 22, 2014, 08:03:06 AM »
 OK next question.....................I had 2 VTC4 and 2 VTC5 in rotation about 2 weeks ago 1 of each just stopped taking a charge, is this common? how long can I expect the other two to last? I purchased them all around 5 months ago, used all these batteries exclusively on .4 to .6 Ohms. and recharged them once they hit around 3.7 output.
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Offline danwldr

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Re: Panasonic CGR18650CG
« Reply #8 on: August 22, 2014, 09:27:01 AM »
Had mine a lot longer than 5 months

Still taking, and holding well

Not sure why yours have stopped taking a charge

They should be good for a minimum of 300 cycles until they stop operating at their best.
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Offline vapingfool

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Re: Panasonic CGR18650CG
« Reply #9 on: August 31, 2014, 12:12:01 AM »
OK next question.....................I had 2 VTC4 and 2 VTC5 in rotation about 2 weeks ago 1 of each just stopped taking a charge, is this common? how long can I expect the other two to last? I purchased them all around 5 months ago, used all these batteries exclusively on .4 to .6 Ohms. and recharged them once they hit around 3.7 output.

Is there any particular reason why you are recharging them when the voltage drops to 3.7 volts? That is only about 50% - 60% discharged.

I am assuming you are using a regulated mod - as you otherwise would be vaping at 30+ watts. That is serious cloud chaser territory, not vaping wattage level.

Is there any reason you are using sub-ohm coils?

As Dan stated, your batteries should be lasting much longer. And they shouldn't suddenly quit taking a charge. The capacity should drop off gradually - after 400 rechargings, they should still be at around 80% capacity.
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Offline failte

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Re: Panasonic CGR18650CG
« Reply #10 on: August 31, 2014, 02:45:54 AM »
No, that's not standard behavior.  Perhaps your charger is the culprit.  Hope it's not an "somethingFire" brand.
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Offline danwldr

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Re: Panasonic CGR18650CG
« Reply #11 on: August 31, 2014, 02:59:11 AM »
I charge my batteries when they get to 3.7volts

Performance is key, and that's the point I really start to notice the drop.

Nothing wrong with my batteries,they are VTC5's, but sub Ohm'rs really notice the difference in .1 volt drop at that point.
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Offline vapingfool

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Re: Panasonic CGR18650CG
« Reply #12 on: August 31, 2014, 08:47:52 AM »
With a 0.5 ohm coil:

4.2 volts -  35.3 watts
4.1 volts -  33.6 watts
4.0 volts -  32 watts
3.9 volts -  30.4 watts
3.8 volts -  28.9 watts
3.7 volts -  27.4 watts
3.6 volts -  25.9 watts
3.5 volts -  24.5 watts

So why does a person need all those watts, unless they are chasing clouds, not flavor?
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Offline pwmeek

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Re: Panasonic CGR18650CG
« Reply #13 on: August 31, 2014, 10:36:20 AM »
With a 0.5 ohm coil:

4.2 volts -  35.3 watts
4.1 volts -  33.6 watts
4.0 volts -  32 watts
3.9 volts -  30.4 watts
3.8 volts -  28.9 watts
3.7 volts -  27.4 watts
3.6 volts -  25.9 watts
3.5 volts -  24.5 watts

So why does a person need all those watts, unless they are chasing clouds, not flavor?

And why does not a chart like this impel everyone in the same boat to get a regulated mod that can hold that 30 or 32 Watts on the button for the entire discharge cycle of the battery?
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Offline danwldr

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Re: Panasonic CGR18650CG
« Reply #14 on: August 31, 2014, 11:53:54 AM »
With a 0.5 ohm coil:

4.2 volts -  35.3 watts
4.1 volts -  33.6 watts
4.0 volts -  32 watts
3.9 volts -  30.4 watts
3.8 volts -  28.9 watts
3.7 volts -  27.4 watts
3.6 volts -  25.9 watts
3.5 volts -  24.5 watts

So why does a person need all those watts, unless they are chasing clouds, not flavor?

I still have plenty of flavour at high wattage, its all down to the set up

Thick wire so you have plenty of wick coverage, you don't lose flavour if you do it right :)+!
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Offline vapingfool

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Re: Panasonic CGR18650CG
« Reply #15 on: August 31, 2014, 01:15:57 PM »
But that's the problem. I suspect most people doing sub-ohming don't have the bloodiest idea of when doing so is an advantage. Nor do they have even rudimentary knowledge of the necessary safety precautions.

The same problem exists for many (maybe even most) of those that get high wattage capability mods. They don't know when to use high wattage and when to use low wattage. They just crank the wattage up, then wonder why their coils don't last very long and why their juices taste like crap.
 
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Offline danwldr

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Re: Panasonic CGR18650CG
« Reply #16 on: August 31, 2014, 01:21:29 PM »
Pointless sub Ohm'ing on a high output regulated mod

50/100/150 watts is what it is, whether its a .02Ohm coil, or a 3Ohm coil

Only time sub Ohms make a difference is on a mech.

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Offline pwmeek

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Re: Panasonic CGR18650CG
« Reply #17 on: August 31, 2014, 05:59:47 PM »
Pointless sub Ohm'ing on a high output regulated mod

50/100/150 watts is what it is, whether its a .02Ohm coil, or a 3Ohm coil

Only time sub Ohms make a difference is on a mech.

In fact, sub-ohming on a regulated mod may deprive you of the lower wattages if (as most do) the mod has a minimum voltage limit (or resistance cut-off, which amounts to the same thing).
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Offline vapingfool

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Re: Panasonic CGR18650CG
« Reply #18 on: September 01, 2014, 09:03:27 AM »
They are similar, but not quite the same thing. The minimum voltage, resistance and wattage do not coincide exactly.

Take my Vamo V3 for example. Minimums are 3 volts output, 1.2 ohms resistance and 3 watts minimum setting.

If I were to use VW mode with that 1.2 ohm resistance, the lowest wattage I could obtain would be 7.5 watts, even if I set the wattage lower. I would need a 3 ohm resistance to get the actual power down to the 3 watts minimum set.

In VV mode, the lowest wattage obtainable with a 1.2 ohm resistance would still be 7.5 watts.   

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