Motorcycle can be connected to usb is OK, only need to buy a car to use the USB interface charger, connected to the motorcycle battery can be used.
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If the mobile phone does not have a USB cable, and the mobile phone jack is alternative, there are five common kinds, you can directly buy five linear car charger, but most mobile phones support the USB cable charge, do not support their own change one, it is easy to make two wires, and then the charger power to make two leads, the middle is positive, both sides of the shrapnel is negative, many can not be reversed, Otherwise it will burn easily.
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Choose a waterproof position, recommended the inside of the guide cover, fixed, and then connect the positive wire to the positive pole of the front brake switch line, the negative electrode is connected to any position that can take the iron, so that it is waterproof, but also to ensure that only unscrew the electric lock to work, prevent leakage, and buy a mobile phone bracket fixed on the handlebar, the mobile phone can be charged.