Vape Batteries – A Buying Guide

Most vaping equipment requires the 18650 battery. This is the keystone vaping battery. They are easy to obtain, very reliable compatible with a variety of mods. Having said that, 18650 batteries can be counterfeited relatively easily so it’s important you know what you’re looking for.

Here are some of the most important things to consider when picking out a new 18650 vaping battery.

Vape Battery Brand

Not all brands are created equal. Some will lie about their battery ratings because, at the end of the day, all they want to do is sell as many as they can.

It’s best to stick to well-known vaping battery brands, such as Samsung, Sony and Panasonic, so you can guarantee they’ll be reliable in terms of quality, consistency and truthfully rated.

Capacity And Current

Inside each cell, there is only so much material so you end up having to choose between a vaping battery with high capacity, or a battery with high current.

The capacity of a vaping battery tells you how many milliamps can be drawn and for how many hours. Capacity comes at the cost of current and the continuous discharge rating (CDR). This is the maximum current at which the battery can be safely discharged continuously without damaging the battery or reducing its capacity.

There is also the pulse discharge rating to consider. The ‘pulse’ is the maximum current at which the battery can be discharged for a short period of time without damaging the battery or reducing its capacity.

However, avoid making a decision based on the pulse rating alone. This is because a number of factors play into this rating, such as pulse length, time at rest between pulses and battery temperature.

Vape Battery Voltage

Ever heard of the term ‘hitting hard’ when browsing through vaping batteries? If not, this refers to the voltage at which the battery can sustain midway through its cycle or even longer. Most batteries for vaping remain between 3.2V to 3.7V midway through their cycles.

Operating Temperature

For those of you that experience constantly hot battery temperatures, it’s being used too much compared to its limitations. Batteries that frequently rise above 100 degrees will age much faster compared to cool batteries.

High operating temperatures can also be dangerous because of the potential for venting and/or pressure increasing, which can lead to bursting. In fact, this makes high CDR ratings that much more important.

Flat Top And Button Top Batteries

The final thing to consider when choosing the best battery for vaping is whether you need a flat top battery or a button top battery. This is far less technical and only refers to the positive end of the battery.

Button top batteries have a protruding surface which increases the battery’s length and may not fit in a device which requires a flat top battery. On the other hand, flat top batteries have a flat surface and may appear to be too short if your device requires a button top battery.


Pay attention to the following things when choosing a new battery for vaping: brand, capacity and current, voltage, operating temperature and the tops. If you plan to use a mechanical mod. Have a look at our article on Ohm’s Law and battery safety.

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