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ry from being over-discharged.
3, cooling skills: flashlight in the process of use, to ensure heat. Strongly require the battery to be fully charged, first use the second gear, which can make the lamp holder and battery of the flashlight extend the life of the product; can not direct the flashlight to the human eye, super bright and glare, so as not to affect vision, especially children.
1. Check the battery: Make sure the battery has electricity and install the battery in the correct direction. Do not use batteries of different brands. The old and new batteries should not be mixed.
2. Check the tail cover: Make sure that the switch is tightened and the contact is good, to ensure that the copper column of the tail cover and the metal plate of the tail cover are in good contact, pay attention to whether the lamp head is loose.