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This cell is identical in appearance and performance to the terrific Sanyo NCR20700B. It is not a high power cell but it provides a lot of capacity for low power single-cell mods or moderate power for multi-cell mods. I recommend staying below about 40W per cell for decent performance.
This cell is double wrapped. While this provides a lot more protection from damage to the wrap it does increase the diameter of the cell a bit. For the two cells I tested the largest diameter was 20.42mm. It has the same thin paper top insulator ring as the Sanyo NCR20700B so I recommend avoiding juice leakage onto the top of the battery.
I am especially pleased to say the EnerCig has rated this cell conservatively at 15A. It runs slightly cool at that level, as does the Sanyo NCR20700B.
Two cells were donated for the purposes of testing by EnerCig in Germany (www.enercig.com). Thank you!
Cell photos: https://imgur.com/a/gWYz3
Ratings graphic: https://imgur.com/a/jWBlW
Test results, discharge graph, photos: https://www.e-cigarette-forum.com/forum/threads/bench-test-results-enercig-15a-4000mah-20700…double-wrapped-identical-to-sanyo-ncr20700b.835923/
All my test results to date: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/
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