Mega Power Bank

thingiverse

The concept for this project was sparked by the "12000 mA/h 18650 Battery Pack and dual USB recharger" project on Thingiverse. I had a trip to Kenya coming up and wasn't sure if I'd have easy access to electricity, so I created my own power bank using the same components as the original design. My enclosure is entirely my own creation and securely holds the circuit board in place with a slot that works perfectly for this project. Several 4-cell battery packs are connected together and super-glued side by side, forming a parallel circuit with all cells linked to a single set of 16-gauge feed wires. The circuit board and battery pack can be easily inserted into the box compartment without needing any glue or other adhesives. I didn't include a button for the circuit board switch, but there's a hole that you can use to press the switch with a pen or another thin object. The components were purchased from Amazon and are listed below: CynKen 3Pcs DIY 4 Slot 18650 Battery Holder With 8 Leads: https://www.amazon.com/gp/product/B06WWJBH5K/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1 10PCS Deep Blue 18650 Rechargeable Battery 6000mah 3.7v Li-ion Battery: https://www.amazon.com/gp/product/B01M67EDR4/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1 Dual USB 5V 1A 2.1A Mobile Power Bank 18650 Battery Charger PCB Module Board: https://www.amazon.com/gp/product/B06XWBR1GB/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1