Description
-500mAh battery capacity
-Size: Length/53mm& Diameter/24.87mm
-Suitable for all sizes of 510 threaded cartridges
-Type-c charging port
-Voltage counting from 2.0-4.2V with 0.1V each time
-Draw counting
-Battery level –display
-Preheat counting 15 seconds 1.8V
-Color: black/grey/purple/orange/green/blue or customized colors
-20pcs in one –display box with usb cable
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