These days, without a mod, regulated or unregulated, then the only real choice you have left: ego type batteries. Someone mentioned the Vision Spinner 1600 mah will work with the 1.5 or 1.8 ohm. You won't get the best vapor or flavor production on a Vision Spinner, but with a threaded adapter, the Aspire Nautilus will fit snug on the Vision Spinner II (be sure to get the Version II).
Specifications from MyVaporStore:
Variable Voltage Output: Voltage can be adjusted from 3.3V~4.8V
Short Circuit Protection: When a short is detected, the battery will shutdown until the short is removed.
Lockable: Press the button 5 times within 1.5 seconds to lock or unlock the battery. The battery LED will blink when switching modes. When the battery is in lock mode, the button is disabled and the battery will not power an atomizer or cartomizer.
Atomizer Protection/Cutoff Timer: If the button is depressed for 10 seconds, the battery will shutoff until the button is released.
Battery Monitoring/Over-Discharge Protection: The device will monitor the battery voltage and automatically turn off when the battery is discharged, preventing damage to the battery by overly depleting it. The LED will blink 5 times indicating that a charge is need.
Approx. dimensions: 4-15/16"L. x 5/8"D
- Upgraded button with battery charge indicator: White light ~ 60%-100%, Blue light ~ 30%-60%, Orange light ~ 0-30%
- New Upgraded and stable PCB control Board
- More comfortable and ergonomic spin dial for adjusting the voltage
- Brand New and upgraded Battery Cell (which makes the Spinner II even more Powerful)
- Longer Lasting Life span due to the New upgraded PCB circuitry And Battery Cell
- Cutoff Time: Approximately 8 seconds
Product comes in multiple colors. Each one for $34.98 Product Code: VS-S1600
Or you can pick one up anywhere. My Vapor Store I have shopped at, I purchased the IPV2S 60w. Highly reliable quick shipping online shop.
Anyway, Vision Spinner II 1600 mah will work with the Aspire Nautilus......hopefully in time you will get a little gutsy and move up to the next step: a regulated box or tube mod.
Hope this helps.