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OBS Engine Mini RTA - Two-Post



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Product info:

The OBS Engine Mini RTA is the compact iteration of the innovative OBS engine platform. precisely designed within an anti-leaking apparatus that features top airflow system, sliding top side-fill port, and POM drip tip.

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The OBS Engine Mini RTA is the compact iteration of the innovative OBS Engine platform. precisely designed within an anti-leaking apparatus that features top airflow system, sliding top side-fill port, and POM drip tip. The newly crafted Engine Mini measures 23 in diameter with a maximum juice capacity of 3.5 milliliter, filled via OBS' signature sliding top side-fill port that measures 3mm by 5mm. The entire apparatus is brilliantly constructed similar to the original OBS Engine, with the build deck built isolated from the rest of the tank, allowing for a manufacturer's rated 30% reduction in temperature. Following the instructions, the build deck cutout ensures efficient assembly with the rest of the structure. The build deck of the Engine Mini implements a two-post, dual terminal design, with terminal posts measuring 2mm in diameter and ample build area for large coil structures. The design of the chamber ensures a flavor-enhanced performance, with a compact cap-off of the atomizer core. Quad wicking ports are located beneath the deck, allowing for an effective and convenient wicking process. Maintaining performance capability, the Engine Mini RTA integrates a unique top airflow delivery system, where air channel enters the system through adjustable airslots at the top cap. This process funnels down airflow to create an effective passage to the atomizer core, providing ample cooling properties for maximal throttle during high-performance configurations. Exemplary designed with OBS's precise manufacturing process, the OBS Engine Mini RTA is the evolution of compact system that offers a perfect balance of value, performance, and functionality.

OBS Engine Mini RTA Features:

  • 3.5mL Juice Reservoir
  • 23mm Diameter
  • Superior 304 Stainless Steel Construction
  • Pyrex Glass Reinforcement
  • Floating Build Deck Design - Isolated From Base
  • Two-Post, Dual Terminal Design
  • Side-Secured via Phillips Screws
  • Deckmilled Negative
  • PEEK Insulator
  • Four Wicking Ports
  • Unique Airflow Circulation System
  • Dual Adjustable Top Airflow Control
  • Redirected Air Channel 
  • Convenient Slide-to-Open Side-Fill Gasket
  • POM Widebore Drip Tip
  • 510 Connection


  • 1 Engine Mini RTA
  • 1 Replacement Glass Tube
  • 1 Cotton Pad
  • Spare O-Rings and Screws
  • Instructional Maual

This product is for advanced users only. It consists of risk of damaging your mods, devices, and batteries if it is being used improperly. Please make sure that you have great understanding and have done researches on this product before purchasing.

Note: When it comes to using RDA, RDTA, and RDTA, we strongly recommended to wash and clean all the atomizers thoroughly and carefully. Likewise, please have a great sense of knowledge when it comes to handling and using these products.

We always strongly recommend testing the coils with ohm-meter before using them with your mods, devices and batteries. Coils with low resistance are not suitable with all mods, devices and batteries. Please make sure that your mods, devices and batteries can handle low resistance before using them.

Note: There is always an inherent risk when using any rechargeable batteries at anytime and under any circumstances. and any of’s parent and subsidiary companies are not held responsible for any damage for any modification of the batteries, chargers, devices and other products that we carry in any form or shape, this is including pack making. and any or all of’s parent and subsidiary companies will not be held responsible or liable for any injury, damage, or defect, permanent or temporary that may be caused by the improper use of a Li-ion (Lithium-ion), LiPo (Lithium-ion Polymer) and any rechargeable battery/batteries as well as chargers. Please have a greater understanding of the batteries/chargers you are using and how to care for them properly.

When working with Li-ion (Lithium-ion), LiPo (Lithium-ion Polymer) and any rechargeable cells, please be cautious and carefully use as they are very sensitive to charging characteristics and may explode or burn if mishandled. Please make sure that you have great knowledge on all rechargeable batteries before you use them. Always charge batteries at the clean and fire-proof surface. Never leave charging batteries unattended. If you see that there are visible damages on the batteries, please do not use. Always keep, store and transport the rechargeable cells in a safe, non-conductive container in controlled environment.