Comparison Eleaf iStick Pico 75W Battery vs KangerTech Kbox 120W

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 battery that the battery mod is equipped with or designed for (if the battery is not included).

Modern vapes can use both removable and non- removable batteries. The former are convenient in that a dead battery can be quickly replaced with a fresh one, and while one battery is in use, the second can be charged. However, for many vapes with such a power supply, you have to separately purchase both the batteries themselves and “chargers” for them (for more information about this type of batteries, see the “Removable” section). Non-removable elements, in turn, cannot be quickly changed, but they are more compact, immediately included in the delivery package and extremely easy to use: when the charge is exhausted, you do not need to mess with external chargers, just connect the supplied charger (or even just a USB cable). ).

As removable elements in vapes, 3.7-volt cylindrical lithium-ion batteries are mainly used, here are their main sizes:

— 18650. The most popular size of 3.7 V replacement batteries nowadays. Such cells have a diameter of 18 mm and a length of 65 mm, and their prevalence is due to a combination of good performance with relatively compact dimensions. The number of batteries of this type can be different: for models of relatively low power (up to 100 W), one 18650 battery is enough, in more powerful mods there are 2,...and in some models even 3 or more 18650 batteries.

— 20700. The format of replaceable batteries, used much less frequently than 18650 — due to its larger size (diameter 20 mm, length 70 mm). The number of such elements can also be different — from one in relatively low-power models to two or even three.

— 21700. Another relatively rare size of replaceable batteries; has the same length as 20700 (70mm) but larger diameter (21mm). Such elements are used mainly one at a time, vapes for two 21700 batteries are almost never produced.

— 26650. A rather specific size: such elements are the same 65 mm long as 18650, but their diameter is almost one and a half times larger — 26 mm. This provides high capacity and power, but the large size limits the use of this type of power supply, it is found only in single vape models (although there are devices even for two batteries). And in some battery mods for such elements, it is allowed to replace 26650 with 18650 due to the same length.

Built-in batteries, in turn, differ in the technology by which they are made. Nowadays, Li-Ion (lithium-ion) or Li-Pol (lithium-polymer) non-removable batteries are mainly used. They are similar in their main characteristics: they are compact, have a good capacity, lack the "memory effect", but they do not tolerate both frost and heat. The main difference is that in the first variety the electrolyte is liquid, and in the second it is a solid polymer. Thanks to this, Li-Ion cells are somewhat cheaper, and Li-Pol are less sensitive to overloads and safer in emergency conditions.

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".