Precautions:
1) Ensure the surrounding environment is dry, avoid using it in a humid environment, and avoid water droplets or water vapor from invading the inside of the charger.
2) Ensure that the plug of the charger is properly connected to the socket without loose or poor contact.
3) Pay attention to whether the current and voltage of the charger are matched with the equipment, and check and maintain it regularly.
4) Ensuring that the charger is isolated from flammable objects and avoiding placing flammable objects near the charger.
5) Ensure that the positive and negative terminals of the charger output are consistent with the battery pack, and prohibit charging of non-rechargeable batteries.