External battery charger, or charging cords using the USB-C or Round charge port.
 
All chargers are 5v1a, which provide the accurate charge to safely charge the lightsaber you purchased from us. Do not use any other charging device that is not a 5v1a or you may risk damaging the electronics or battery, rendering the device unusable and voiding the manufacturers warranty. If you have questions, feel free to send us a message prior to purchasing.