The ZAi-MX15 is currently powered by a battery, with a single 41000mAh battery and a comprehensive operating time of up to 45 minutes. At the same time, we are equipped with a four channel 3000W high-speed charger, which only takes 35-40 minutes to fully charge one battery. Configure 3 batteries to support uninterrupted operation 24/7, thoroughly removing stubborn stains and mold. (Curtain wall cleaning for 45 minutes, photovoltaic cleaning for 55 minutes, fan cleaning for 30 minutes)