Ya, I can send back the SV and they'll send an LV as it was their error sending a SV. I have an EM 510 mega battery, 280 mAh, 3.3-3.7 V. This should work with LV, correct? I also have the F510-M601 adapter for like no reason, and a joyetech ego-t2 1000 mAh variable from 3.3-4.15 V (for ego-w).