5 clicks to turn on and off.3 clicks to adjust voltage .650/900mAh large capacity.Patented USB Charger.Compatible with ALL 510 thread Cartridges
Brass Knuckles Battery 650mAh 900mAh Preheat battery Gold Wooden Silver Preheating Voltage Adjustable 510 Thread for Thick Oil Cartridge
$3.21
5 clicks to turn on and off.3 clicks to adjust voltage .650/900mAh large capacity.Patented USB Charger.Compatible with ALL 510 thread Cartridges
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