[How to view the remaining battery level/about charging] Press and hold the power button to display the battery level on the screen. The "Charging" charging light will flash. (Charging time) about 8 hours. "Charging complete" 4 charging lights will light up. *When charging, use the included cord (Type-C) and use your AC adapter or USB port on your computer (rated power supply 5V⎓2A). ） [Safe and secure PSE certified] Excitech power banks are PSE certified. PSE is a marking mark that indicates compliance with the standards of the Electrical Appliance Safety Act. This product is a battery exclusively for the 2025 model "EXCITECH COOL VEST". It is not compatible with other models or other companies' products, so please check it when using it. [About operating time and charging] (Level 1) Approx. 30 hours　 (Level 2) Approx. 19 hours　 (Level 3) Approx. 11 hours　 (Level 4) Approx. 6 hours *The above values are measured at 30°C in the operating environment. *The operating time and charging time vary depending on the charging environment, the frequency of use of this product, the usage environment, mode, and combination. (Charging time) about 8.5 hours　 *When using a 5V⎓2A DC AC adapter [Easy operation 3STEP] 1. Install the fan on the air conditioning work clothes. 2. Plug the special cable into the fan and battery. 3. Wear COOL VEST and press and hold the power button (about 2 seconds) to turn it on/off. You can change the airflow by pressing it shortly. Choose your preferred power from 4 levels. [Japan Planning Support] If you have any questions or notices about the product, please feel free to contact our customer support for consultation. 【Contents】 Main unit, Type-C USB charging cord, Japanese instruction manual (with warranty card) *This product does not come with an AC adapter.