You mean FS510? If you mean FS510 you can use the atomizers but stay far away from the FS510
batteries and charger - they are reverse polarity and very incompatible with real 510
batteries and chargers (fry and vent lithium - dangerous)
If you ever accidentally put an Ego battery in an FS510 charger or an FS510 battery in an Ego charger or any normal 510 charger, you may fry, vent or explode the battery. If you own FS510, label the chargers and use only FS510 batteries in them. That stupid FS model is reverse electrical polarity from Joye and other normal 510's.
But atomizers and cartomizers don't care about polarity.