Under normal circumstances, GPS's battery life is about 1-2 hours, so when long-distance driving, vehicle power is needed. However, some car owners found that the prompts are always not bright whenever they use the vehicle power supply. After the inspection, it was found that the fuse of the original cigarette heater was burned, so the external power supply could not be used. At this time, the owner often believes that the quality of the car power supply of the GPS is too poor, but after multiple replacement, the situation is still.

　　In fact, the reason for the unable to use the vehicle power supply by GPS is not exactly caused by the quality of the vehicle power supply. Some of the reasons are caused by the design of the cigarette lighter.

　　Simple judgment and solution:

　　The owner can first observe which interface of his GPS vehicle power supply belongs to which one shows the following figure. When the A -type plug is plugged out, the fuse will occur, while the B plug will not happen. The owner can replace the vehicle power supply of the B plug.

　　For car owners who use the car plugs using A interface, if you do not want to change the vehicle power supply, you can insert it after starting the car and before the fire off the fire to prevent instant high -voltage burning. If you think this method is troublesome, you can choose to make a simple transformation of the cigarette lighter in the car. The metal piece above the cigarette jack is flat (red standard), so that the GPS cannot use the vehicle power supply.

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