ADEEPT PiCar-Pro Manual page 103

Raspberry Pi is installed with RobotHAT, you can connect the USB cable to the USB
port on the RobotHAT. RobotHAT will power the Raspberry Pi with the GPIO
interface.
2. Different raspberry parties have different current requirements. For example,
the Raspberry Pi 3B needs at least 2A to boot up, and the Raspberry Pi 4 needs 3A to
boot normally. You can check before you use the power adapter to power the
Raspberry Pi. The specifications on your power adapter.
3. When RobotHAT is connected to a load, such as a motor or multiple servos, a
high-current power supply is required to connect to the Vin on the RobotHAT. You
can use two 18650 batteries that support high-current to power the RobotHAT.Our
product will provide a 18650 battery holder with 2pin interface, you can directly
connect it with RobotHAT.
4. When using the USB interface on RobotHAT to supply power, the switch of
RobotHAT does not control whether to supply power, the switch of RobotHAT can
only control the power supply of Vin.
5. Do not use the USB port and Vin on the RobotHAT to supply power at the
same time. If you need to debug the program for a long time and do not want to
remove the battery, you can turn the switch on the RobotHAT to OFF, so that when
you use the USB cable to connect to the RobotHAT , RobotHAT is powered by USB.
6. If your robot restarts automatically after booting, or disconnects and restarts at
the moment the robot starts moving after normal booting, it is most likely because
your power supply does not output enough current. The robot will automatically
restart when it is turned on. Run the program to place all the servos in the neutral
position. The voltage drop generated during this process causes the Raspberry Pi to
restart.
7. We tested that the peak current of the robot is around 3.75A when using 7.4V
voltage power supply, so you need to use a battery that supports 4A output.
8. You can also use power lithium battery to power RobotHAT, RobotHAT
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