If you would like to add a solar panel to your favourite backpack or bag you may be interested in a new tutorial published to the Adafruit website detailing how you can boost the power from a small solar panel to directly charge your smartphone store the energy in a lithium ion battery for use at another time.
“Make your own backup battery and recharge it with the sun! This is an upgrade project to our original Solar Charging Handbag and uses a PowerBoost 500 Basic, a solar lipoly charger, slide switch, and 2000mAh rechargeable battery, all housed in a 3D printed enclosure.”
To complete this project you will need :
– USB/DC/Solar Lithium Ion/Polymer charger kit
– PowerBoost 500 Basic
– 3D printer with filament
– A large solar panel or a medium solar panel
– 2000mAh lithium polymer battery
– 2.1mm DC Barrel Plug
– slide switch
– A sturdy handbag or backpack
– soldering tools and supplies
– #4-40 3/8 flat Phillips machine screws
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