LiPo QC 3.0 powerbank with USB-C

prusaprinters

<p>This is a powerbank built around a very capable and cheap QC 3.0 PCB. The caveat is that it has to use 4.35v max voltage lithium-ion cells.</p> <p>The upside is that PCB can fast-charge at 20W with a compatible QC 3.0 charger. I was able to pull 10W at various QC 3.0 modes, but I am not done with my tests, I'm sure it can do more.</p> <p>I've built it to recycle spare laptop batteries I got from my Surface Book experiments.</p> <p>Let me know if you'd like other thicknesses.</p> <p>Parts list:<br/> Powerbank PCB: <a href="https://www.aliexpress.com/item/1005001287843781.html">https://www.aliexpress.com/item/1005001287843781.html</a><br/> 8x M3 8mm countersunk screws<br/> a 3mm thick lipo battery with 3.8v nominal 4.35v max charge. I used a fairly large replacement battery for Samsung Galaxy Tab E. You can fit smaller batteries and stick them with double-sided tape.<br/> 4.35V cell charged voltage is critical for this PCB, a lower voltage cell will lead to overcharge and blow up. Use at your own risk</p> <h3> Print Settings</h3> <p><strong>Printer Brand:</strong></p> <p>Prusa</p> <p><p class="detail-setting printer"><strong>Printer: </strong> <div><p>i3 MK3</p></div><strong>Rafts:</strong></p> <p>No</p> <p><p class="detail-setting supports"><strong>Supports: </strong> <div><p>No</p></div><strong>Resolution:</strong></p> <p>0.15</p> <p><p class="detail-setting infill"><strong>Infill: </strong> <div><p>15</p></div><br/> <strong>Filament:</strong><br/> hatchbox PETG orange <br/> <p class="detail-setting notes"><strong>Notes: </strong> </p><div><p>Print at 0.15 layer height. Please place a recycling mark at your plastic (See my other models).<br/> Post your prints, please.</p> </div></p></p></p></p> Category: Electronics