This battery powered wireless charging lantern will glow for 1.5 hours on a single charge. It works with a handful of electronic parts and a USB charger. The USB cable plugs into the base, and the lamp sits on the base and charges through induction, which we'll get into later.
The lamp housing, charging base, and lens are all 3D printed on a desktop FDM printer.
This project is part of a family of wireless charging products I'm working on. A swamp cooler, bluetooth speaker, and aroma diffuser are all in the works!
Becky Stern was kind enough to give me the following parts list for the project:
1. Universal Qi Wireless Charging Transmitter ($27) This part plugs into a USB power source and emits 3.7V power through a copper coil. This part goes inside the charging base.
2. Universal Qi Wireless Receiver Module ($15) This part receives transmitted power through a copper coil. It goes inside the lamp.
3. Micro Lipo w/MicroUSB Jack - USB LiIon/LiPoly charger ($7) This part stabilizes the power coming through the wireless receiver, ensuring that it stays at a steady 3.7V.
4. Lithium Ion Battery - 3.7v 2000mAh ($12) This is a standard rechargeable battery pack that gets is power through the Micro Lipo charger.
5. 1 Watt Cool White LED - Heatsink Mounted ($4) This is a heatsink mounted LED that is pretty bright with 3.7V. It plugs into the battery.
6. DC3-250V SPST Panel Mount Self-Locking Metal Push Button Switch 16mm ($9) This is a standard latching switch that turns the LED on and off.
Any desktop FDM printer will do. The lamp is a 5" X 5" (127mm X 127mm) cube, so any printer with a bed at least that size should work just fine.
All you need for this project is a soldering iron and a small screwdriver.