This page shows our range of single 21700 battery kits. By having 2 sets of batteries and an external charger you no longer need to wait for your device to charge, you can just swap batteries and go. Batteries also degrade over time and use, and so having a device that has easily replaceable batteries can keep your vape going for longer. 21700 batteries are generally able to hold a much higher capacity when compared to an 18350 or 18650. So if you’re looking to keep the simplicity of a single battery, but get a bit more life and power out of your device, a 21700 device is a great option.
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