EFEST and AW work and almost have the same performance. 
For me personally I just use what the maker of the device recomends. Which is usually AW brand. If they back their warranty by using the battery I'll go with their suggestion.![]()
AW is a Chinese distributor that re-brands Panasonic cells. They don't actually make anything.
Panasonics from Japan are considered the best. Chinese made cells like
Ultrafires, Trustfires, and other Chinese brands are considerably lower quality.
And usually massively exaggerate the batteries rating.
Lots of reading all over the net.
While usually good practice if you're in the know, this isn't always good advice. Think of how many "Starter Kits" are sold with garbage batteries and crap chargers. An impressionable noob might get the wrong idea that their "blue" IMR is the best for their new APV.
AW pulls batteries from much more sources than just Panasonic. Panasonic (or it's sibling Sanyo) doesn't even make half the sizes in the AW product list. But that doesnt detract that AW is a great choice in batteries.
im asking about efest batts because i have two aw imr and after 1 month of daily usage, one of the aw imr is not working anymore, the other one loses its volts very fast.
Hello,
The difference in pricing between these two batteries are double. Efest is cheaper, AW IMR is priced double the Efest. Which is better? And is there a significant difference between those two brands?
AW is a Chinese distributor that re-brands Panasonic cells. They don't actually make anything.
Panasonics from Japan are considered the best. Chinese made cells like
Ultrafires, Trustfires, and other Chinese brands are considerably lower quality.
And usually massively exaggerate the batteries rating.
Lots of reading all over the net.
Amazon.com: 4pcs Panasonic CGR18650CH 3.6 Volt Li-ion shipping free 18650 Battery 2250 mAh: Everything Else
Orbtronic - Panasonic CGR18650CH With Top Button, 2250mAh IMR High Drain 18650 Battery Cell-Made in Japan These are great as well. I have 2 that I use in my Provari. I use the MNKE's in my mech.
For some reason my aw imr 18650 2000 mah I get 50 hrs between chargers and I vape 6ml a day compared to my evic stock Samsung 18650 2600 mah I get may 30 hrs.
I'm not lying I vape two tanks a day of my mt3 and change my battery out of my provari at 48 to 50 hrs
3-5 sec vapes and 2.5 to 3.0 ohm coils.