Striking a balance between high performance and compact design, the Humble + Fume CCELL M3 510 thread battery is a discreet rechargeable battery that is compatible with 510 thread cartridges. • Battery Capacity: 350mAh• Recharageable Battery with USB Adapter• High-Quality Circuit Board with Multiple Protections• Stainless Steel Housing. OEM Service Available• Inhale-Activated• Built-In LED Indicator Light• Standard 510 Thread• Dimensions: 10.5 x 76.4 mmVape Battery Standards:Disposable/Rechargeable Standard: CAN/CSA-E62133 or equivalent Transportation Standard: UN/DOT38.3