I found this model some time ago and kept it in mind as an idea. 1 week ago I received from a broken garden solar lamp a 1 Watt panel (80mm x 120mm x 3mm). I used the model from dkennell as a template and adapted to my parts.

Can be powered by sun or 5V USB or 5V DC.

Output 5V and 500mA.

Used parts:

• Adafruit USB DC Solar Lithium Ion Polymer charger V2
• Lithium-Ion Polymer Batterie 3,7V 2500mAh
• USB DC-DC 0,9--5V to 5V Step-Up Power Supply Converter
• 3 white LED´s (15000mcd)
• 1x 10ohm resistor for the led´s
• one small and one big switch
• optional Toslink cable for the indicator led´s
• 4x M3x 15mm screws
• MANY hotglue ^^

AND some sun

Print Settings

Printer:

i3 Prusa

Rafts:

Supports:

Yes

Resolution:

Infill:

20%

Post-Printing

A few openings had to be filed. Thread was cut into the 4 holes of the bottom part. Bolt together with 4 screws M3x 15mm

I fix the components with hotglue and I used an old Toslink cable (fibre optic) to extend the original status LED´s to the "edges".

The small switch next to the large switch for the LED's is for the current output, since otherwise there is a permanent current and the status LED lights up.