Single battery 18W fast charging power bank

![QQ screenshot 20211211004332.jpg] ![QQ screenshot 20211211004456.jpg] If you have made a lot of boards and need to purchase finished products, please contact 1. The 5328 in my hand is a version that does not support PD. Double-clicking the button will turn on the low current charging mode. No Do you know if this is an example? 2. The battery protection circuit integrating HY2113 and two AON5820 limits discharge to 15A and charge to 10A. These two things are not cheap. If you don’t want them, you can short-circuit P- and any closer GND pad. 3. Reserve the NTC circuit. About 100K4000B, when the NTC is not connected, the 82K resistance is changed to 47-51K 4. For the solid capacitor, I used a 100uF25V local tantalum capacitor, Uxin costs 3 yuan each. If it is too expensive, you can use some skills to solder ordinary solid capacitors 5. C port Use 14P vertical harpoon, do not use solder paste as soldering will connect the tin on the reverse side 6. The panel uses SGM3732 to drive 6 2835 lamp beads, and the indicator light is opened with the window reversed to achieve a soft light effect, which requires spot welding skills 7. Between the two boards Use 9mmM2 copper pillar connection to act as a ground wire, and there are 6 flying wires to connect the signal 8. Taobao 32*32*100 aluminum shell 8.5 each! [QQ screenshot 20211211003255.jpg] ![QQ screenshot 20211211010236.jpg]