Warm hand treasure, USB warm hand treasure, rechargeable warm hand treasure details
Hand warming treasure with mobile power supply
1、 Product overview
Xh62073 is an IC with mobile power supply and heating, which has the following functional features:
>One key operation
>Single USB port charging and discharging
>Working voltage: 3.7V
2、 Operating instructions
1. Power on and enter the standby mode. Press and hold the key (single key) for 3 seconds to enter the working mode. The red light is on and the heating plate works; In the working mode, press and hold for 3 seconds to enter the standby mode and stop the operation of the heating plate; During this process, if the battery voltage is lower than 3.3V, the red light flashes, and the flashing frequency is 2Hz
2. Connect the charger to automatically trigger the charging of the equipment. The red light is on during charging. The first ten minutes of charging is 100% charging, and then 80% charging. When the charging current is less than 50mA, the charging is completed. At this time, the red light is off, the green light is on, and the charging circuit is closed; During charging, the temperature of the battery is detected. If the battery temperature is higher than 45 ℃, the charging circuit is closed, and if the temperature is lower than 45 ℃, the charging circuit is opened
3. When connecting external mobile equipment, short press the button, the red light will be on, turn on the boost circuit and charge the external equipment; Short press the button again to close the boost circuit and stop charging the external equipment; At this time, if the battery voltage is lower than 3.3V, the red light flashes and the charging of external equipment is stopped