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Battery BackPack kit

This kit includes the PCB and all onboard components for the Battery BackPack. You just need to add a AA-size Li-ion rechargeable cell.

See the link immediately below for a complete list of parts in the kit. The photo shows the assembled kit.

Cat No SC7707. Price: AUD $25.00 ¹

In stock:

yes (18 available). Estimated dispatch time: 1-3 days

Related to: Project: Battery BackPack for GPS Clocks (September 2026 [print issue] [online issue])

Other items relevant to this project:

Battery BackPack PCB [11105261] ($5.00)
Battery BackPack PCB pattern (PDF download) [11105261] (Free)

Kit parts list

	1 × Battery BackPack PCB [11105261]
	1 × single AA cell holder

Connectors

	1 × USB Type-C socket (power only, SMD mounting pads)
	1 × 9-pin male header (2.54mm pitch)

Semiconductors

	1 × 3mm red/green bicolour diffused LED (two-lead)
	1 × MCP73831T-2ACI/OT Li-ion charger IC (SOT-23-5)
	1 × MIC37100-3.3WS 3.3V 1A LDO regulator (SOT-223)
	3 × 1N5819WS 40V 1A schottky diode (SOD-323)

Through-hole Capacitors

1 × 470µF 10V 105°C low-ESR electrolytic capacitor

SMD Capacitors

4 × 10µF 25V M3216/1206 X7R

SMD Resistors

	2 × 100kΩ ±1% M3216/1206 ¼W
	1 × 10kΩ ±1% M3216/1206 ¼W
	2 × 5.1kΩ ±1% M3216/1206 ¼W
	2 × 1kΩ ±1% M3216/1206 ¼W

Cable & Hardware

1 × Double-sided foam-core tape pad, 39 × 61 × 1.5mm or 43 × 54 × 1.5mm

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