Difference between 18650, 1600 mAh and 2000mAh, aside from the obvious...

[Kenho21]

Is there any difference between the two batteries other than a longer lifespan between charges?

 

[Morandir835]

Do you mean the highdrain batts Kenho (guessing sir?), and what company (guessing aw since you used those two ratings), or companies? If it's the aw imr, the 2000mah are 1-2mm slightly longer than the 1600mah, and have a lower current output (10a max) with a steeper voltage curve. The 1600mah have a 14C rating (22.4a), and a flatter voltage curve.

 

[Rader2146]

At the current that we use for vaping, the AW 1600mAh has no advantage over the 2000mAh. The curves are nearly identical until around 3.4 and then the 2000mAh will get you a little more run time until the 3.2v cutoff of most single battery VV mods.

 

[Kenho21]

Sorry, yea Morandir I was referring to the AW IMR high drains. I just ordered 2 of the 2000mAh for my gripper, hope they fit...

 

[Rader2146]

They'll fit. 65.2mm

 

[Kenho21]

Thanks a lot folks, much appreciated. Now the wait for the batteries since I already have the mod for them... frustrating

 

[cerver7]

Thanks a lot folks, much appreciated. Now the wait for the batteries since I already have the mod for them... frustrating

been there before mate. its quite grueling but this too shall pass and when your in vape coma, this thread will be long behind you

 

[Kenho21]

Just got an update on the tracking and all packages will be arriving on the same day, Woot Woott!!

 

[WillyB]

At the current that we use for vaping, the AW 1600mAh has no advantage over the 2000mAh. The curves are nearly identical until around 3.4 and then the 2000mAh will get you a little more run time until the 3.2v cutoff of most single battery VV mods.

Single battery VV mods use a booster, as such the cells need to provide more current that what a simple ohm's law calculation may show. And seeing as they need to to push that current thru a booster there is also the inherent 10-15% efficency loss that has to taken into consideration. And as the battery drains it has to supply even more current to maintain a regulated output voltage. A 3A test might suffice for simple tube PVs or PVs that use stacked cells.

To run a DC at a boosted 4.5V calls for ~3A at the atty for about 14W. To get and maintain that from a single 3.7V battery is no easy feat. When that battery gets down to ~3.3V it will need to supply at least ~4.6A to actually maintain that vape.

Here's a 5A test, which is probably a much indicator for boosted VV, VW single battery PVs fitness.

 

[Torchy]

At 10A AW IMR 1600mAh and AW IMR 2000mAh:

 

[Rader2146]

Very true Willy, if you vape at 14 watts. Not many do. Seeing as the majority of vapers are at 6-10 watts, we can say 8 watts for example.

8w output / 85% efficiancy = 9.4w input / 3.3v input = 2.85a input current.

So for most users, a 3A test is fairly accurate when comparing 2 batteries for a boosted PV.