When we use flashlight, sometimes we find the flashlight go out, or cannot turn on. Many customers ask what is the problem. Here, I will walk you through some reasons that may cause the flashlight to go out or cannot turn on.

1, The battery is dead. Here the “Dead” does not mean that the power is run out, but the battery is ruined by overcharging or over-discharging, as a result, the battery cannot be charged anymore, and is not able to provide power any longer. Quite a lot of users love to use the flashlight till the battery is run out, without power left, and then to charge the battery. In fact, this habit will hurt the battery seriously. In fact, all batteries have their own voltage, when the inner voltage is lower than that, the battery may get ruined. What’s more, charging cannot solve this problem anymore. Therefore, Tank007 serious remind all customers, please charge the battery once you find the flashlight ‘s brightness is not enough, or go out at once when you switch on it. Do not use the flashlight until it cannot switch on.

2, Poor contact. If the tail or the head part do not contact battery well, the flashlight may not work properly, for example, sometimes bright, sometimes cannot. Therefore, when the flashlight is not bright, screw all parts in the flashlight to ensure every part is contact well.

In addition, the careless production, long distance transport, long time placed not in regular use, etc. may cause the flashlight not bright.

3, The battery’s positive and negative poles are anti-loaded. Some people (especially beginners) do not distinguish between positive and negative, directly put into the flashlight, this time a lot of light flashlight lamp beads directly burned, although there are some bright flashlight with anti- wrong-loaded design, but the battery positive and negative engage in anti-circuit fails, of course, does not shine.