When charging is it suppose to flash red?

It lights or flashes in three colors to indicate the following: When charging: Green: Battery is in a fully charged state. Green (flashing): Battery is in a high partially charged state. Orange (flashing): Battery is in a low partially charged state. Red (flashing): Battery needs to be recharged. Red (flashing rapidly): The battery of the unit is overheated due to extensive use or recharging. The charging process will stop at this stage and will automatically resume after a cool down period. When operating: Green: Battery is operating at full voltage. Orange: Battery is operating at partial voltage. Red: Battery is operating at low voltage, and should be recharged or the built-in low voltage protection will be activated and the unit will automatically shut down shortly. Red (flashing rapidly): The battery of the unit is overheated (due to extensive use or recharging), or is too cold (the ambient temperature has dropped below -20°C). Operation will stop at this stage.