Same as above. I use only AW imr
batteries in my mods.
Andrew Wan (AW) is a distributor in Hong Kong who purchases batteries in large quantities made by the major battery manufacturers in Japan. Not all batteries are created equal from the factories, and AW knows this. He puts all these batteries through extensive tests and selects only the best to be sold as AW batteries. You are paying a little more for an AW battery to know that it will be a consistant high quality battery. Peace of mind.
After doing some extensive battery research over the last several month, I have found that Efest often over-states it's battery specifications. Mah ratings and amp ratings can be accepted with a grain of salt. Independent testing of the purple 35 amp 18650 Efests have been shown to be only 20 amp batteries in tests.