I've yet to see a picture of this nova ecig but if you found out which re-branded model it was you could find a manual battery for it. It may look different but if nova doesn't carry manual batteries then this is your only option. Otherwise, like others said I would switch to the 510. All ecigs carry a model number to differentiate between them, the DSE801 is a pen-style, DSE901 is a mini, etc. The 510 is a type of atomizer.