Vamo v2 with Kayfun clone, Sigelei Zmax 3 with Protank 1, Vamo v2 (with stripped 510 threads) with mini Protank 2, Nzonic clone with Igo-L
yes, I use all 4 daily
( oh, and by the way ztwistkpg, the batteries you have pictured are most commonly referred to as ego style batteries )