External or Separate Battery Devices

External Battery Devices do not come with batteries. The correct Battery or Batteries will need to be purchased ie 18650 or 21700 the more popular sizes currently. If your Mod or Kit needs more than one battery in it, for safety and for best performance reasons we recommend you use an external charger from Xtar An external charger not only charge your batteries safer but it improves battery life, how it delivers power and makes them last longer.

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