Does your device require batteries to operate?
Please check the product description for information regarding to your device and if it will need batteries and/or an external battery charger to operate. Also check the size of the battery it will require, generally being single or dual 18650 or 21700 lithium-ion cells.
Please note we highly recommend using an external battery charger for external battery devices. This is much safer and much healthier for your newly purchased batteries. If you are un-sure, feel free to contact us an we will guide you in the right direction.