BK battery pen 650/900mah 510 thread universal battery pen
| Color | Gold, silver, wood grain, can be customized according to your needs |
| Battery capacity | 650/900mah |
| OEM/ODM | Color, logo, style, packaging, and battery capacity can be customized according to your needs |
| Delivery time | 7-15days |
| Instructions for use | 2 clicks to preheat hold for 15s，1 click to stop preheat，3 clicks to adjust voltage，5 clicks to turn ON/OFF |
