[Announcer voice] On this installment of Battery Busters
TM: Is the newest, trendiest, battery really the best? Stay tuned for more...
Ok, now that I got that out...what is best? Best for you? Best for someone else? Best for everyone? Best for mech's? Best for VV?
There is not a single answer that covers all of those questions. "Best" is reserved for a very narrow scope with a specific use on a specific PV for a specific person. There are a handful of batteries that will perform very well over the entire spectrum, but "best" needs to be specific.
So lets take a look at how they perform...
CGR18650CH 2250mAh vs NCR18650PB 2900mAh
3A discharge = ~1.3Ω coil in a mech mod, or ~10W on a VV or VW device.
Most won't vape a mech mod down below 3.5V so anything below 3.5V should be ignored. They are pretty similar with the NCR18650PB having a slight advantage.
On a VV/VW device the NCR18650PB has a decent run-time advantage if you run it down to the PV's low voltage cutoff of 3.2V.
Now lets turn up the heat...
CGR18650CH 2250mAh vs NCR18650PB 2900mAh @ 7A
7A = ~.6Ω coil on a mech mod.
CGR18650CH has a moderate advantage in holding a higher voltage under heavier load. The NCR18650PB shows (IMO) a slightly disturbing plateau @ 3.6V. Typically this happens when the battery is being pushed close to it's limit (chemically) and once the cell gains some heat the chemical process improves resulting in the plateau.
Old and forgotten? AW IMR 1600mAh vs NCR18650PB
AW IMR 1600mAh holds much better voltage under heavy load. Meaning your mech mod will have more run-time before you hit the point where you typically change to a fresh battery.
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So the answer to what is the best battery? There is no correct answer. But if you can narrow it down to your specific use, then the correct answers will start to appear. The current trend, or the latest and "greatest" may not be the correct answer. Sometimes "Old and forgotten" might be a better choice.
In the context of this thread:
-The NCR18650PB would perform very well in a VV/VW device that is limited to 15w or in a mech mod with a >1.3Ω coil.
-In a Mech mod with a <1.3Ω coil. The old and forgotten AW IMR 1600mAh performs great and is readily available from many retailers. However, there is also the Samsung INR18650-20R 2000mAh that will outperform the AW 1600 across the board...but it is not so readily available.