Quantity   Component name
1 × android smartphone HTC Wildfire
1 × a wound coil, or PCB copper trace coil 30 turns, 46 SWG, ! cm dia
1 × current limiting resistor 150 ohms
1 × li-ion battery >70mAH
1 × charge management IC MCP73831 or MAX1555 (with associated caps)
1 × charge LED miniature
1 × micro USB socket
1 × test push button
1 × 3.5mm mono jack socket
1 × AAC switch