Comparison Joyetech eGo AIO Pro Kit vs Eleaf iJust S Kit

The type of blowing provided in the atomizer of an electronic cigarette.

This parameter is indicated by the location of the cells for the intake of air entering the evaporator. According to this criterion, lower, upper and side airflow are distinguished, here are their main features:

— Lower. The most popular option nowadays. Such popularity is primarily due to the fact that many vapers consider the “lower” vapor to be the most delicious. In addition, bottom blown atomizers are easier to maintain than "side" models, they are not so demanding on winding quality. The disadvantages of this option include an increased likelihood of leakage, including during liquid overflow; and the condensate, which is quite intensively formed at the air intakes, tends to flow down onto the battery mod. However, these points are not particularly critical.

— Upper. A format that has appeared relatively recently. In general, such an airflow conveys taste somewhat worse than the lower one, moreover, the steam turns out to be hotter; however, this point is largely subjective, and some users like this type of steam. The objective advantages of the “upper” atomizers include the minimum probability of overflow, the almost complete absence of condensate flowing onto the battery mod, and the absence of splashes even when using coils with very low resistance.

— Si...de. The type of blowing used mainly in "drips" (see "Type of atomizer"). If the bottom airflow gives the most delicious steam, then the side airflow is the most dense and saturated. This is achieved due to the fact that the air flows around the spiral as intensively as possible and captures the greatest amount of evaporation. In addition, the likelihood of liquid overflow and splash formation in such atomizers is very small, and with the right settings, the taste is transmitted almost as well as in the “lower” models. The main disadvantage of this option is the actual need for careful tuning and proper installation of the spiral — so that there are no blind spots on it. So side airflow is generally designed for experienced users; maintenance-free atomizers are an exception, but this format of operation is rarely used in them.

Also note that there are combined options for sale, for which two types of airflow are indicated at once. Here the specifics can be different. So, it is unrealistic to combine the upper and lower airflow in one evaporator, therefore this option is indicated only for sets of several atomizers with different types of airflow. But the side format of work may well be combined with the top or bottom — this allows you to combine the advantages of both options and provide saturated steam. On the other hand, the need for careful tuning for such devices is just as relevant as for "pure" side ones.

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.

The highest resistance of the electronic cigarette heating coil.

The meaning of this parameter will be different, depending on which part of the device is in question (see "Type"). For an atomizer, this can be either the resistance of the complete heater, or, if there are several “heads” in the kit, the resistance of the highest-resistance replaceable coil. For a battery mod, the highest resistance is indicated at which the battery is able to deliver sufficient power for operation. For the starter set, the data is usually given according to the battery mode, while the resistance of the complete heater (heaters) may be lower than the maximum.

Data on the maximum and minimum (see above) resistance is necessary, first of all, to select an atomizer and a battery mod that are compatible with each other. The atomizer must fall within the operating range of the battery mod, otherwise the battery will either be overloaded (if the evaporator resistance is too low), or simply will not provide the desired degree of heating (if it is too high).

The type of connector for connecting the atomizer to the battery pack provided in the device. The most popular today are two types of connectors:

ego. A standard used primarily in entry-level starter kits (see "Type"). In such models, the battery mod has the form of a cylinder with a small diameter and, accordingly, does not differ in special power and capacity. The connector itself is screw, and when connected, the battery is screwed into the atomizer (unlike the 510 standard). Charging is also carried out through the ego connector, and, accordingly, requires the use of specialized chargers. For more solid equipment, this connector does not fit well, and therefore is not used in more or less powerful battery packs.

- 510. The most popular modern connector for electronic cigarettes, used in most battery packs and atomizers; installed in almost all devices of the middle and top class, as well as in most low-cost models. Like the ego, it uses a screw connection, however, in this case, the atomizer is screwed into the slot on the body of the battery mod, and not vice versa.

For normal compatibility of the atomizer with the battery mod, it is necessary that both of them use the same connector. However, due to the extreme popularity of the 510 type, problems with this very rarely arise, and in extreme cases, adapters between these standards are produced.

The battery capacity of an e-cigarette or separately sold battery mod. This parameter is indicated only for models with non-removable batteries (see "Battery type"): replaceable cells can be produced in different capacities.

The larger the battery, the longer you can use the device without recharging the battery. However the actual power consumption and, accordingly, the battery life of different models will be different, therefore, only devices with similar operating voltages and atomizer resistances can be compared in terms of capacity.

In general, if battery life is important to you, it is quite possible to proceed from the principle “the more capacious the battery, the better”; and to save money, you can choose a relatively weak battery. It is also worth mentioning that there are schemes for calculating the optimal battery capacity depending on the power, atomizer resistance, etc.; these schemes can be found in special sources.

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".