Battery Breadboard - Portable 5V and 12V Breadboard Power

Model Overview & Print Notes

Summary Prototype anywhere, no bench power supply needed The Battery Breadboard is a full-size breadboard with built-in 5V and 12V power from two removable USB-C power banks. Each power bank feeds a USB-PD trigger board, one set to 5V and one to 12V. Both voltages are available on dupont sockets right next to the breadboard and on 4mm banana jacks on the front edge. Two independent outputs: 5V up to 3A and 12V up to 1.67A Removable power banks that slide out for charging or to use on their own Full-size 1660 breadboard Power indicator windows on the bottom light up blue when each output is on Finished size 183 x 160 x 32.5 mm, 741 g with both power banks Press a power bank's button twice to turn that output off and once to turn it back on. How it goes together Four printed parts: a base that holds the two power banks, a PD module mount that sits in the channel between them, two cable retainers and a lid that carries the breadboard. The pictures show the exploded view, the layout, the wiring and the DIP switch settings. Full step-by-step build guide with photos on my website Bill of Materials The links below are Amazon affiliate links. If you buy through them I may earn a small commission at no extra cost to you. 2x UGREEN 10000mAh PD power bank (20W USB-C) (affiliate) 1x BusBoard BB1660 breadboard (affiliate) 2x CH224K USB-C PD trigger board (affiliate) 2x 6" right-angle USB-C to USB-C cable (affiliate) 4x female Dupont jumper wires , cut to 70 mm, 2 red and 2 black (affiliate) 4x 4mm panel-mount banana jacks , 2 red and 2 black (affiliate) 4x 20 AWG silicone wire , 125 mm pieces, 2 red and 2 black (affiliate) 5x M3 x 6 x 4.2 mm heat-set inserts (affiliate) 2x M3 x 8 mm and 3x M3 x 25 mm socket head bolts (affiliate) 4x pieces of heat shrink tubing (affiliate) 4x wire ferrules for 20 AWG wire (affiliate) Printed parts Base (main body) x1 Lid (top plate) x1 PD module mount x1 Cable retainer x2 No supports needed. Print each part in the orientation shown in the last picture. The base and lid are designed for two colors: white for the 5V / 12V / + − labels on the lid and for the power indicator windows in the base.