Bottom Line: This metallic wrap Efest cell is a poor performer and I rate it at 4A. It is much worse than its predecessor, the 7A 700mAh V2 purple cell and performs very much like the V1 version. Its capacity is good for its rating though and I rate it at 800mAh. It lists both the continuous and pulse ratings on the wrap, which could be a good thing, but the continuous rating is exaggerated and the pulse rating is meaningless without knowing the pulse width, duty cycle, and the criteria for setting the rating (temperature? run time? voltage sag?).
Test results, discharge graph, photos: https://www.e-cigarette-forum.com/forum/threads/efest-metallic-purple-7a-700mah-18350-bench-test-results-a-poor-performing-4a-battery.751677/
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