If the lithium battery of your Shenhuo BRC18650 flashlight cannot be charged, it may be due to various reasons. Here are some possible solutions:
1. Check if the charger is working properly. Connect the charger to other devices and see if they charge. If the charger is not working properly, it must be replaced.
2. Check if the battery is damaged. If the battery is damaged or cracked in any way, it may cause charging issues. If the battery is damaged, it must be replaced.
3. Make sure the connection between the battery and charger is good. If the connection is poor, it may cause charging issues. You can try cleaning the connector and make sure it is dry.
4. Check the battery power. If the battery is too low, it can cause charging issues. You can place the battery in the tanker and wait a moment before trying to recharge it.
If none of the above methods resolve the problem, it is recommended that you take the flashlight to a professional repair shop for inspection and repair.
Brother, I don't know if this is a problem or not
Flashlight lithium battery chargers must have positive and negative poles. If it is a pedestal charger, the directions of the positive and negative poles of the card slot will be marked. The protruding end of the battery is the positive pole and the flat section is the negative pole. There is also a + symbol on the battery. to indicate it. Of course, direct charge chargers also have positive and negative poles. The charging sockets of all factory chargers have the same positive and negative poles.
Your question is whether one side is the positive or negative terminal. This must be marked, pleaseLook carefully.
I hope my answer can help you, and I hope you will adopt it!