When charging the device, you must definitely keep the on-off switch on it in the "OFF" (OFF) position. If the product is charged while it is on, the battery inside may overheat because it will try to both charge and discharge at the same time, the battery life may be significantly shortened, or the device may be damaged. Yes, it is perfectly normal. The time of full charge of the model cata CT-9990 is about 18 to 24 hours according to the technical manual. 5 hours is too soon for this large searchlight. As long as the device is plugged in, the red light will remain on, indicating that the charging process is in progress.
