Efest IMR 18560 vs AW IMR 18650
Both were brand new batteries charged on an XTAR WP2S with a .5 amp charge rate.
Both batteries were purchased DIRECTLY from the respective vendors.
The test performed on both batteries is:
This duty cycle was chosen because it most likely represents the SAFE usage of 18350 batteries in a mech mod with a RBA.
Winner: The AW IMR 18350
Here's the chart of the test: