Forge Power Kit — 12 V Router UPS (3S 18650)

Every stocked part for the Forge reference design: three 3200 mAh 18650 cells, 3S BMS, XL4015 CC/CV charger, XL6019 boost, IRF4905 ORing MOSFET, DC jacks, fuse holders, voltage sensor, bulk capacitors, 3-cell holder and veroboard.

Kit contents

• 3 × 18650 3200 mAh cell with NTC (MSC-2782)
• 1 × 3S 11.1 V battery management system (PW-2492)
• 1 × XL4015E 5 A CC/CV buck (charger) (MSC-3228)
• 1 × XL6019 5 A DC-DC boost (12 V out) (PW-3232)
• 1 × IRF4905 P-channel MOSFET (ORing) (CMP-2717)
• 2 × DC jack (PRT-2574)
• 2 × Fuse holder 5×20 mm (PW-2659)
• 1 × Voltage sensor module (optional readout) (PW-3215)
• 2 × 1000 µF 25 V electrolytic (output bulk) (CMP-1943)
• 1 × 18650 holder (3 cells) (PRT-2416)
• 1 × Veroboard 5×7 cm (PRT-2259)

Not included

A 19 V laptop brick as the charge source, the 5.5 × 2.1 mm plug to the router, a Schottky diode and the case (or print the Forge one).

The full build guide — block diagram, wiring, why-these-parts, gotchas and safety — is the router-ups-12v-18650 reference design in Forge: forge.microscale.net/design (ask for it by name). Print the enclosure with Forge Prototype.