Device types
Direct-output device
A direct-output device passes the available battery voltage substantially unchanged to the coil, so output varies with charge level and resistance. Unlike a mechanical mod, it may still include electronic monitoring and cut-off functions.
01
Classification
Direct-output device concerns the power supply and therefore the most safety-critical part of an e-cigarette. Cell chemistry, current rating, protection circuitry and charging method form one unit that cannot be optimised piece by piece. In this glossary, Direct-output device deliberately sits close to Zero-nicotine device, because the two are regularly conflated in everyday language.
02
Practical relevance
In everyday use, Direct-output device shows up in runtime, charging time and how stable the output stays across a tank filling. Fading capacity, deformation or unusual warmth while charging are warning signs to take seriously. Together with All-in-one device, Direct-output device is one of the points where factual information and advertising promises separate most clearly.
03
Handling it safely
Charge Direct-output device only with the released power supply, never unattended and never on a flammable surface. Damaged, swollen or water-exposed cells must be secured immediately and taken to a battery collection point, not to household waste. If anything around Direct-output device changes – smell, warmth, sound or weight – that is a reason to check, not a detail.
Note: This content is for general information and does not replace medical or legal advice.
04
Not to be confused with
Telling Direct-output device, Zero-nicotine device and All-in-one device apart is easier if you ask which decision each term is supposed to support. The line drawn here follows technical literature and manufacturer documentation, not the wording of individual sales pages.
05
Frequently asked questions
- How should Direct-output device be classified?
- Within Device types, Direct-output device describes a fixed property, not a quality tier. Two products with the same specification can differ considerably in build, features and approval.
- What really matters with Direct-output device?
- What matters most with Direct-output device is the combination: device, consumable and liquid have to match. Individually good figures do not help if one element is out of line.
- Can I replace Direct-output device with Button-activated device?
- Swapping Direct-output device for Button-activated device is not technically straightforward and, in case of doubt, not intended either. What binds is whatever the manufacturer has released for the model in question.
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Official sources and further reading
Sources are highlighted for safety, health, disposal and legal topics. Information may change; current authority guidance and legislation prevail.