Pax Era vaporizer is only compatible with Pax Era pods, which are filled with oil from several different companies.
Most pre-filled oil cartridges have what's called a 510-thread. The cartridges screw directly into the rechargeable battery; no matter what brand the battery is, it will be compatible with any company's 510-thread cartridges.
We carry the Absolute Xtracts rechargeable battery set.
Even though it is Absolute Xtracts' battery, it will fit any of these cartridges: https://hellomd.com/tag/vaporizer