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General Safety Guidelines of Lithium-ion Battery:
Do Not Disassemble: Never attempt to disassemble, modify, or repair the battery. Unauthorized tampering can cause short circuits, leaks, or explosions.
Avoid Puncture or Damage: Do not puncture, crush, or subject the battery to physical damage. Any impact or deformation can lead to internal short circuits and thermal runaway.
Prevent Short-Circuiting: Avoid contact between the battery terminals and conductive materials (e.g., metal objects, jewelry) to prevent short circuits.
Keep Away from Fire: Do not expose the battery to open flames or high temperatures. Avoid incinerating the battery, as it can explode when exposed to heat.
Proper Charging: Always use the provided charger or a certified USB cable to charge the battery. Avoid overcharging and monitor the battery during charging to prevent overheating.
Storage Conditions: Store the battery in a cool, dry place away from direct sunlight, heat sources, or moisture. Ideal storage temperature is between 20°C and 25°C (68°F to 77°F).
Regular Inspections: Conduct regular inspections of the battery for signs of wear, damage, or malfunction. Look for swelling, leaks, discoloration, or unusual odors.
Proper Disposal: Dispose of the battery according to local regulations for electronic waste. Do not dispose of the battery in household trash or incinerators.
Certified USB Cable: Use a certified USB cable and connect it to stable USB power sources.
Protect from Physical Damage: When transporting Pu, use protective cases to prevent physical damage to the battery. Avoid placing Pu near metal objects that could cause short circuits.
Secure Transport: Ensure that the battery is securely packed and insulated from other items during transport. Avoid transporting batteries in bulk without proper packaging.
Mechanical Safety
Mechanical safety procedures for robots are crucial to ensure safe operation and prevent accidents. Here are some key procedures:

Safety Barriers: Maintain a safe distance when Pu is in action, especially away from your eyes.
Risk Assessment: Conduct a thorough risk assessment to identify potential hazards during Pu’s operation. Avoid high-risk operations that could cause the robot to fall or collide.
Motor Loading Limits: Do not twist Pu’s head or limbs by force when powered on, as this will damage the motor gearboxes.
Emergency Stop: You can turn off the power or remove the Micro:Bit from Pu’s head to stop him in an emergency. Pressing down the joystick of the gamepad on the correct radio channel will stop Pu and make him stand still.
Regular Maintenance: Perform regular maintenance checks to ensure that all mechanical components are in good working condition.
Training: Read the manual or watch online training videos before operating, programming, or maintaining the robot.
Proper Installation: Follow the manufacturer’s guidelines for installing the robot and its components, including correct wiring and connection of safety devices.
Documentation: Keep detailed records of maintenance and any modifications.

Circuit Board Safety
To ensure the safety of robot circuit boards, several precautions should be taken:

Keep dry: Prevent water or moisture from entering the robot to maintain optimal performance and longevity. Exposure to water can damage the internal electronic components, leading to malfunction or failure. If the robot gets wet, promptly wipe off any droplets.
Grounding and Shielding: Proper grounding and shielding protect the circuit board from electrical noise and static discharge. Do not attach wires to the circuit board except through the provided pins.
Surge Protection: Follow the manual to ensure the correct wiring polarity of power and signal lines.
ESD Precautions: Follow Electrostatic Discharge (ESD) precautions when handling the circuit board. Use anti-static wrist straps and mats to prevent static electricity from damaging sensitive components.
Regular Inspections: Conduct regular inspections to check for signs of wear, corrosion, or damage. Early detection can prevent larger issues down the line.
Secure Connections: Ensure that all connections and wires are securely fastened to prevent loose connections, which can cause short circuits or intermittent failures.
Use of Protective Enclosures: Do not operate the robot without its external shells to protect the internal components.
Proper Labeling: Label all components and wires clearly to avoid confusion during maintenance and repairs.
Adherence to Manufacturer Guidelines: Always follow the manufacturer’s installation, operation, and maintenance guidelines to ensure the safe and efficient operation of the circuit board.