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Comparison Voopoo Drag 157W vs Tesla Nano 120W

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Voopoo Drag 157W
Tesla Nano 120W
Voopoo Drag 157WTesla Nano 120W
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Main
The Drag Resin mod comes with a variety of coloured resin resin body inserts.
Typebattery modbattery mod
Battery modelectronicelectronic
Board featuresvariwatt + temp controlvariwatt + temp control
Firmware update
Atomizer
Minimum resistance0.05 Ohm0.1 Ohm
Maximum resistance3 Ohm3 Ohm
Connector510510
Battery
Battery2х186502х18650
Power157 W120 W
Minimum voltage1 V
Maximum voltage7.5 V9 V
Removable
Charging via microUSB
General specs
Display
Materialzinc alloyzinc alloy
Size90x54x24 mm90x55x25 mm
Weight200 g250 g
Color
Added to E-Catalognovember 2017july 2017

Firmware update

The ability to update the firmware of an electronic cigarette — more precisely, a battery mod (this is where all the control electronics are usually located).

This feature is most often found in models with advanced adjustments such as wattage or thermal control (see "Battery mod") — simpler devices do not require complex firmware (although there are exceptions). Major manufacturers of electronic cigarettes periodically release software updates for their equipment that improve the quality of work and eliminate errors noticed by consumers. So this feature is highly desirable for a device with extensive functionality and complex electronics.

Minimum resistance

The smallest resistance of the heating coil of an electronic cigarette.

The meaning of this parameter will be different, depending on which part of the device is in question (see "Type"). So, for atomizers, this parameter is given if spare heaters are supplied in the kit — accordingly, it is indicated for the “head” with the lowest resistance. For a battery mod, this is the smallest resistance that can be connected to it. And in starter kits, the minimum resistance is also usually indicated by the battery mod; low-resistance "heads" in such cases may or may not be included in the delivery.

Anyway, data on the minimum resistance is important in the mutual selection of an atomizer and a battery mod (including when creating custom windings) — connecting an atomizer with too low resistance is fraught with overloads and various unpleasant consequences, up to fire. However, this parameter is of particular importance for lovers of the so-called subohm — soaring at a low heater resistance (up to 1 ohm), which allows you to achieve high steam saturation (when the resistance decreases, the power increases). Not all batteries are capable of working with sub-ohm heaters, so the suitability of a battery mod for such vaping needs to be clarified.

Power

The maximum power supplied by the battery.

This is one of the main parameters of the battery pack that determines its compatibility with the atomizer. Starter kits (see "Type"), by definition, include atomizers that are optimally suited to a given battery in terms of power, and this parameter is mainly of reference value. But when choosing components separately, you should pay special attention to it. Higher power allows you to achieve more saturated steam, but only up to certain limits — too much heating leads to a deterioration in taste, and even burning of the wick (which, all the more, does not contribute to improving the sensation of soaring). So the atomizer must normally transfer the power of the battery, otherwise, at best, you will have to constantly limit the power with the help of a varivolt or variwatt (see "Battery mod"), and at worst, normal use will be impossible at all.

Note that for classic evaporator tanks with one spiral, power up to 40 W is considered sufficient; more powerful batteries are designed mainly for advanced serviced models, drip atomizers and bacodrips(see "Type of atomizer") that have more than one coil and, accordingly, are more high consumption in terms of energy consumption. Also note that the actual heating power depends on the voltage, and in fact it may be lower than the claimed one, depending on the resistance of the atomizer. See “Maximum voltage".

Minimum voltage

The lowest voltage that the battery mod can supply to the atomizer.

The meaning of this parameter depends on the type of battery mod and the functions of the board (see above). So, in mechanical and simple electronic modes, the smallest value to which the battery voltage can drop before it turns off and requires charging is usually indicated here. Knowing this parameter, as well as the resistance of the atomizer, you can calculate the minimum guaranteed vaping power.

If we are talking about a mod with adjustments like varivolt or variwatt, then the minimum voltage is also the lowest voltage that can be set manually in the settings. This may be necessary to reduce the power and, accordingly, the intensity of soaring — for example, if the gas station has a very rich taste, and abundant dense steam would be overkill. In adjustable battery packs, the lower the minimum voltage (with the same maximum voltage), the wider the adjustment range, the more options the vaper has to adjust the vaping parameters. See “Maximum voltage".

Maximum voltage

The highest voltage that the battery mod can supply to the atomizer.

Knowing the minimum (see above) and maximum voltage, it is possible to estimate the heating power that the battery is able to provide at a certain resistance of the atomizer. For example, if we have a battery mod with a voltage range of 3.3 – 4.8 V and an atomizer with a 1.8 Ohm coil, then the current strength at the minimum voltage will be 3.3 / 1.8 ≈ 1.8 A, and at maximum 4.8 / 1.8 ≈ 2.7 A. Accordingly, the smallest heating power will be 3.3 * 1.8 ≈ 6 W, and the largest 4.8 * 2.7 ≈ 13 W. In this case, the nominal power of the battery can be higher, but not vice versa — the actual power cannot be more than the nominal. Let's say, theoretically, the battery from our example, combined with a 0.15 Ohm sub-ohm atomizer, even at the minimum voltage, should produce a current of 3.3 / 0.15 = 22 A and a power of 3.3 * 22 = 72.6 W. However, if a power of 50 W is claimed in the characteristics, then higher values \u200b\u200bare impossible to achieve, even if you unscrew the regulator to the maximum — at low resistances, the voltage at the battery output drops sharply.

Charging via microUSB

The presence of a microUSB connector in the battery mode, through which batteries can be charged.

The main advantage of this feature is that it makes the battery independent of proprietary chargers. The microUSB standard is extremely popular in various portable equipment — smartphones, tablets, players, etc.; accordingly, a huge number of chargers, USB-microUSB cables and network / car adapters for such cables have been released for this connector. Thus, the battery mod can be charged not only from the "native" adapter / cable, but also from any accessory with the appropriate connector. However, note that all of the above applies mainly to models with non-removable batteries. If the battery is made removable (see above), then anyway it is recommended to charge it in a separate charger, and use the microUSB port only in case of emergency. This is due to the fact that in most battery mods for replaceable batteries, the boards are not designed for regular use in charger mode, and frequent use of microUSB charging can lead to premature failure of the board.
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