... Attention:1) The new 510 tank cartridges are only compatible with new 510 tank atomizer, not for previous 510 atomizer, 510 LR atomizer and Mega ... charge the previous USB charger, which will destroy the 510 batteries.3) 510 tank batteries (automatic only) with 220mAh or 280mAh, ... about 250-300 puffs a day. 4. Color options: white, black, ...