Charging steps: 1. Insert the battery into the charging stand of the charger 2. The charger indicator lights up red, indicating that it is charging. 3. The charger red light turns green and is always on, the battery is charged. 4. Remove the battery after charging, turn off the power 5. During the charging process, the charging cannot be interrupted for a short time. Charging indication method: 1.Charger no load: bright green light 2.Battery reverse: 2Hz frequency flashing red light 3.The battery is bad: first, it lights up red and shows charging. After detecting for a while, it flashes at 2Hz.