Vapers often carry extra batteries around in their pocket, purse, or bag without a battery case.
This is a very dangerous activity. The batteries used in vape devices are extremely powerful and if they contact metal objects, they are likely to short out and violently explode. This is easily avoided by simply being mindful of where your batteries are at all times. They are safe inside your device, they are safe on the charger and they are safe in appropriate battery cases. Your batteries should only be in one of these places at any given time.
Vapers often have batteries with cracks and rips in the shrink wrap.
It is important to be aware of the condition of your battery wraps. They are the insulators that keep the positive and negative contacts on the battery safely separated. They are simple shrink wrap tubes, precut to fit your vape batteries, but they are integral to their safe function. We can check and rewrap any questionable batteries in shop.
Vapers will sometimes use different batteries in a multiple battery device.
This particular activity is prevalent and also very dangerous. With multiple battery devices, it is an absolute necessity that one uses a married set of the same batteries. The devices require equal amounts of electrical load on all of the individual batteries in the device at the time. It is obvious that if the batteries are not the same, those batteries will certainly not be handling identical electrical loads and thus that is a dangerous proposition. Moreover, most people are not aware of the danger of using un-married sets of batteries. Married batteries have always been charged and discharged together, it is recommended to buy them together so increase the likelihood that they are also from the same production batch of batteries. By using married sets, you can more easily assure that your batteries are always used to experiencing identical electrical loads and also that they will handle identical electrical loads while in a device.