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 mm Vape Battery Standards: Disposable/Rechargeable Standard: CAN/CSA-E62133 or equivalent Transportation Standard: UN/DOT38.3