A few days ago, my colleague bought a mobile power supply and spent more than 100 silver. However, it is very easy to use. It can charge the apple three times. I just want to do it. If I can do it myself, I will try to do it, let alone, good. used. Now share it with everyone, mainly because the previous mobile phone battery was wasted at home, and the waste was used. Everyone has a lot of used mobile phone batteries at home? In fact, these batteries can still be used. Nowadays mobile power supplies have USB interface or data line interface, we need to prepare a data cable. As shown in the figure: The USB head on the left and the USB port on the right. I will call him the USB port. I used 2 such wires, and there are 4 contact points on the head. From left to right, it is measured that 1 and 4 are power lines and 4 is positive. Cut the data line and remove the outer skin. The red color is the 4th contact, the positive pole of the power supply, the black is the negative pole, and the other 2 are discarded. The contacts of the battery are soldered to the leads, and several batteries are connected in parallel, and then connected to the wires of the USB hole. It is necessary to pay attention to the positive electrode connected to the positive electrode and the negative electrode to the negative electrode. Finally, pack a few batteries together with the USB hole, and plug in the USB head to output the DC power. When charging: Connect 2 USB heads, pay attention to the positive and negative poles, find the charging head of a mobile phone, 2 USB heads and connect the charging head of the mobile phone to another connection 'mobile power supply' to charge. RF Connector Adapter,RF Adapters SMB To SMC,RF Adapters N To BNC,Plug To Plug Adapter Connectgor Xi'an KNT Scien-tech Co., Ltd , https://www.honorconnector.com
