Maximum resistance
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).
Battery
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.Capacity
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.
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".
Removable
This feature is indicated for battery mods that are designed to use
removable batteries — usually 18650 or 26650 (see "Battery Type"). However, such batteries are most often not included in the delivery package, they must be purchased separately. This, on the one hand, does not allow using the device “out of the box”, on the other hand, it makes it possible to choose batteries at your discretion, depending on which atomizer is supposed to be used and what battery power is needed.
Actually, the ability to select batteries at the discretion of the user is one of the key advantages of this option over non-removable batteries (see "Battery type"). Another advantage is that you can buy several sets of batteries and quickly change dead batteries for fresh ones (and charge the removed batteries separately without taking up a battery mod for this). On the other hand, the battery mods themselves turn out to be heavier and larger than non-separable counterparts, and with comparable quality of the batteries themselves, they are often even more expensive. In addition, to charge the batteries, you will also need a separate charger — even if there is a microUSB port, it is recommended to use it only as a last resort (see below for more details), and many models do not have such a connector at all.
