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This video is sponsored by JLC PCB $2 for 2-Layer PCBs & $5 for 4-Layer PCBs: https://jlcpcb.com This is the successor to my ultimate 18650 power bank, this version focuses on practicality, portability, safety, and more advanced controls. This power bank is also modular and customizable in that it can be connected to modules that convert the power to AC, DC, USB, or other forms. The removable battery of 92Wh (Samsung 50E) means that it is close to the largest battery legally allowed on an airplane. This development version of the power bank is opensource, links below. Timestamps: intro: (0:00) starting remarks: (0:20) introducing project: (3:03) Battery pack assembly: (6:16) Circuit explanation: (11:17) Circuit assembly: (15:25) WARNING: BEFORE YOU BUILD, you are responsible for your OWN safety, understand the hazards of working with lithium batteries first. I am not responsible for personal or property damage caused by this power bank! BEFORE YOU BUILD: you mush have an advanced understanding of circuits and knows how to program a microcontroller. Mesure battery internal resistance: https://www.youtube.com/watch?v=av38iBxcOgQ&t=327s Flashing Arduino bootloader: https://www.youtube.com/watch?v=LO8nnQZCrMU Spot welder: https://www.keenlab.de/index.php/portfolio-item/kweld/ The power bank is partially printed using Ender 3, a $200 3D printer: https://amzn.to/30QC9rj Soldering iron TS-100, it is the best value soldering iron. There are dozens of positive reviews on youtube. Buy here to support the channel: https://amzn.to/2JVJ1yj The design files contain CAD, circuit design, illustrations and diagrams, documentation, purchase links. for complete design files, download from GrabCAD. Design files link (GrabCAD, THE COMPLETE Design files):https://grabcad.com/library/the-best-diy-usb-pd-power-bank-design-files-1 Design files link (Thingiverse, 3D print files ONLY): https://www.thingiverse.com/thing:4505297 Code link(Github): https://github.com/KRLAYN/Ultimate_Powerbank_V3_Code PURCHASING LINKS: (for the complete list, download the design files then go to documentations, most of the links support my channel and my work, but you can certainly find cheaper links elsewhere) Panasonic NCR18650BD 3180mAh 10A Battery: https://www.18650batterystore.com/Panasonic-18650-p/panasonic-ncr18650bd.htm Samsung 50E 21700 5000mAh 9.8A Battery: https://www.18650batterystore.com/21700-p/samsung-50e.htm BMS: https://amzn.to/31rvJl1 or https://www.ebay.com/itm/US-3S-4S-5S-12-6-16-8-21V-Li-ion-Lithium-Battery-BMS-PCB-Protect-Board-Balance/352848272583?hash=item5227655cc7:g:qIcAAOSwkW5dxj~I MR30: https://amzn.to/2BKYjDj White small zip ties: https://amzn.to/3dGi9wK 6x2mm magnets: https://amzn.to/31l2aSc Nickel Strips: https://amzn.to/3eI0GFp NTC 3950 100k thermistors: https://amzn.to/3eGsZE6 18 gauge wires: https://amzn.to/2NzWOdF ft232 adapter: https://amzn.to/3iazr8L Pushbuttons: https://amzn.to/2YEOaRn IRLZ44n MOSFETs: https://amzn.to/2YEOaRn JRC 21F 4100 relay: https://www.ebay.com/itm/5Pcs-JRC-21F-4100-5V-DC-SRS-05VDC-SL-Power-Relay-6PIN-AB/181847226512?hash=item2a56f07890:g:BjQAAOxyiRlSbkWe DC jack: https://www.ebay.com/itm/2PCS-10A-High-Current-5-5mm-x-2-5mm-DC-Socket-Power-Jack-FOR-Notebook-Charger/392748356151?hash=item5b71a05237:g:7RAAAOSwC4ZehpLE USB C trigger: https://amzn.to/3eF70xt USB Quick Charge module: https://amzn.to/2ND11x8 Mini DC to DC step-down converters: https://amzn.to/3dBK6Wl USB PD module: https://amzn.to/2A7xUPo Buck-boost converter: https://amzn.to/2BeCJXG M3, M2.5,M2 Screws and Nuts: https://amzn.to/2A9akBU x9C102: https://amzn.to/2ND1U97 8x16 LED matrix panel: https://www.ebay.com/itm/KEYESTUDIO-8x16-LED-Dot-Matrix-Display-Module-Panel-4Pin-Cable-for-Arduino/263930736964?hash=item3d737f7144:g:L-cAAOSwbF1bl1xb Ws 2812 LED ring; https://amzn.to/2VoxTy8 Micro DC 10A fuse: https://amzn.to/2YE7oGU DC fuse holder: https://www.ebay.com/itm/6-Set-PCB-Panel-Mount-Small-Medium-Universal-Car-Fuse-Holder-and-Blade-Fuses/113244478369?epid=0&hash=item1a5de59ba1:g:WBoAAOSwzyBblxtI 5V 25mmx7mm fan: https://amzn.to/31l3Zi0 Bimetal temperature switch: https://amzn.to/2NBJDsU Limit switch: https://amzn.to/2VpbZLg Music used: Jarico - Island Free Download: https://freetouse.com/music/jarico/is... Aden & Atch - Sunrise Free Download: https://bit.ly/3ezdy05 Vacaciones - Mike Leite Vacaciones by Mike Leite https://soundcloud.com/mikeleite Creative Commons — Attribution 3.0 Unported — CC BY 3.0 Free Download / Stream: https://bit.ly/m-l-vacaciones
