Wholesale High Quality 400 mAh 510 Thread Battery Compatible with 510 Thread Cartridge Battery with Digital Display

Wholesale High Quality 400 mAh 510 Thread Battery Compatible with 510 Thread Cartridge Battery with Digital Display. Customizable Branding: Supports customization of logo, color, and gift packaging box. Digital Display: Features a digital display with voltage adjustment (2.7v-4.2v). Fast Charging: Equipped with a Type C charging port for efficient power replenishment. Compact Design: Lightweight metal body, 25g net weight, size 90*14mm. Multi-Function Control: 5 clicks power on/off, 2 clicks preheat, 3 clicks voltage adjust. OEM/ODM Support: Own factories in China allow for private model customization.