Replay mode - save and repeat flavours on the battery carrier

Replay Mode is an adaptive operating mode primarily introduced by chip manufacturer Evolv in the DNA chipsets (DNA 250C, DNA 100C, DNA 75C). Unlike pure wattage or temperature control, the chip analyses power, voltage and resistance throughout the entire duration of a reference puff and uses this data to store a complete energy curve. With every subsequent puff, the control system adjusts until the same curve is achieved.

This should be distinguished from the simple wattage mode, which maintains only a fixed wattage, and the temperature control mode (TC), which limits the maximum coil temperature. DNA Replay combines elements from both worlds: it reacts to the actual thermal state of the coil, whilst at the same time giving you the freedom to define the optimal flavour yourself once. Other manufacturers such as Dicodes or older YiHi chips also offer similar adaptive modes under different names.

The principle is two-stage: first, you take a reference puff in Wattage mode at a setting that suits your taste. You then confirm this puff as a template – on the DNA Replay via the ‘Save this puff as Replay’ function. From now on, the chip reproduces exactly this power output with every puff.

Typical use cases

• Self-built coils: With DIY builds using stainless steel, Ni80 or Kanthal, Replay compensates for differences between individual coils.
• MTL and sub-ohm setups: Whether with tight, throat-hitting puffs at 12–18 watts or open sub-ohm atomisers at 60–90 watts, the mode delivers consistent flavour.
• Fluctuating battery charge: If the battery voltage drops from 4.2 V to 3.6 V, a simple wattage mode would deliver the same power, but the thermal behaviour would still change. Replay compensates for this as well.

Difference from Boost and Preheat

A Preheat or Boost mode provides extra power in the first few milliseconds to heat up the coil faster. Replay goes further: it replicates the entire draw curve, including the progression after the heating phase.

The mode is powerful, but not the first choice for every setup. These points will help you decide:

• Check the chipset: Only mod bodies with a DNA chip (DNA 75C and above) offer genuine Evolv Replay. Cheaper devices with ‘Replay’-like names sometimes use simplified algorithms.
• Clean coil: To ensure the chip can accurately track the curve, your coil should be evenly wound, free from hotspots and properly broken in. Short circuits distort the reference.
• Set the reference puff deliberately: Take the reference puff on freshly saturated cotton wool with a medium battery charge (approx. 3.8–4.0 V) – this ensures the curve is realistic.
• Resave after changing the coil: Each new coil has its own resistance and different thermal behaviour. An old Replay value will rarely be suitable.
• Consider e-liquid viscosity: With thick, high-VG e-liquids (70/30 or 80/20), you often need longer warm-up phases, which the Replay draw should reflect.

A common mistake: Saving the reference puff on a cold coil or with too little e-liquid. The result is then too hot or dry on subsequent puffs. A second pitfall is saving Replay with a severely degraded battery – the power output is then already limited and the mode cannot scale the curve correctly with a fresh battery.

Do I need special accessories for Replay mode?

No, apart from a mod with a supported chipset – usually an Evolv DNA 75C, 100C or 250C. The atomiser itself doesn’t need to have any special features; you just need a stable, clean coil and suitable batteries (usually 18650, 20700 or 21700).

Is Replay the same as temperature control?

No. Temperature control only limits the maximum coil temperature and works mainly with stainless steel, nickel or titanium. Replay, on the other hand, maps the complete power curve of your reference draw and also works with Kanthal coils, which are unsuitable for TC.

How often do I need to resave the Replay value?

Whenever you change the coil, swap the atomiser or use a new e-liquid with a significantly different VG/PG ratio. Within the same setup, the saved draw setting remains valid for the entire lifespan of the coil.

Is Replay worth it for beginners?

For classic pod systems or disposable devices, the mode is irrelevant. However, anyone using self-built atomisers and seeking consistent flavour will benefit significantly – the learning curve is manageable.

Replay mode is not a marketing gimmick, but a serious tool for permanently saving a flavour once it has been found. Anyone willing to invest a little time in setting up the reference draw properly will enjoy a vaping experience that remains consistent throughout the entire battery life. If you’re considering switching to a device with a DNA chip, you’ll find suitable models and accessories in our selection of mod bodies, as well as complementary parts under Coils – take your time to compare which setup suits your vaping style.