Burtle Air Craft fan set, with 2 fans and charger. Purchased in April 2025, the battery shows fully charged when charging, but flashes immediately when connected to the fans. The battery dies instantly. Everything except the battery is in good working order. Please feel free to contact me. For those who purchase today, I will offer a 1000￥ discount! - Brand: Burtle - Model Name: Air Craft - Included Items: 2 fans, charger - Voltage: AC09-24V Thank you for looking.