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E-cigarette Battery Safety Guide


The vape industry is advancing at a remarkable rate. We have seen a multitude of devices hit the market. Many of these require an external battery to operate – typically an 18650 battery. Our battery safety guide will help ensure that you keep safe when vaping. Having a reliable battery will ensure your device works correctly and your eliquid is vaporised efficiently to provide you with the best vaping experience. 

Firstly it is important that you ensure that your batteries are safe to use
All batteries have thermally printed text to show the following

Basic battery

Whatever vape device you use, they all contain batteries with the potential for danger and should be treated with care.

18650 batteries are available to purchase from a range of manufacturers. The most popular manufacturers are LG, Samsung Golisi and Sony. Why is this? This is because other manufacturers usually “rewrap” battery cells. The biggest problem with this is that rewrapped batteries can be of a lower grade, and rejected by the bigger companies as they do not meet the ratings during testing. Also rewraps can have exaggerated ratings.

With anything you use that includes a battery, you need to ensure that the battery is safe. This includes ensuring that the wrap is still in good condition. Please refer to the image provided. If the battery wrap is peeling off, it can be dangerous as the battery body is exposed. This exposure can potentially make contact with the device, or even a set of keys or loose change in your pocket, creating a short circuit, causing your battery to vent as the flow of energy has been interrupted between the positive and negative connection. There are now wraps available on the market so you can rewrap your battery if the current one has been damaged. Alternatively use a rubber battery casing.

Battery use with regulated mods

As the vape market grows, the use of regulated mods is becoming a popular option. These mods allow the user to easily adjust the wattage / voltage to fire up the coil regardless of what ohm it is. Although these mods include a circuit board with various safety measures to prevent shorts, as with any electronic device, they can malfunction. Here are some steps that we would advise you take to look after your battery.

  1. Handle your mod with care.
  2. Insert / take out your battery correctly
  3. Store your device safely - including locking it. All regulated mods provide a locking function.
  4. Don’t tamper with the device
  5. Don’t overcharge.
  6. Dispose of batteries safely.

Some regulated mods come with an internal battery, it is best advised that you do not tamper with this, and also that you do not overcharge it. Most quality mods have a cut-off point where they stop charging after reaching full power. When charging through a USB cable, ensure that you are using the correct charging cable, preferably the one that comes with your device. If your device charges using a USB cable, make sure the power output matches your mod. If your charger has a higher voltage than your battery, you could overheat the battery or short the device.

With regulated mods that have a removable 18650 battery, ensure that you are using a battery holder after charging. When charging, ensure that you are using an authentic charger provided by a reliable ecigarette manufacturer. Batteries are recommended to not be charged any more than at 1amps.

Battery use with unregulated mods

Unregulated mods, typically mechanical mods, have no circuits inside and the wattage/voltage cannot be selected. These mods send all the power from the battery straight into the coils until the battery is depleted. Here, the battery amps should never be exceeded. This is fundamental and can be very dangerous as you are trying to draw out more power than the battery can provide. To work out how many amps you will be using, take the discharge rate (the amps) of your battery, then divide this by coil resistance (ohms).


It is also crucial that you use the correct vape batteries. Visit our vape shop  staff in store or do some research and find out what batteries are recommended for your build. There are many types of battery, including ICR, IMR and LiPo (Lithium Polymer) with different battery ratings. If you are ever in doubt about the quality of a particular battery, please do get in touch with us and we can help. Simply look for a vape shop near me and we'll be sure to that our staff will talk you through the best options to keep you and your vape hardware safe.