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I want somebody to provide a robust solar pv circuit including calculation for mobile phone using various of usb port interfaces.
- the circuit must be fail safe, space and charging efficient,
ultra light weight and user friendly
- store / charge mobile phone battery of various type and battery ratings
The quote must include 2 working samples. Design must be own original work.
[Solar panel will be provided after final discussion,
shipping cost must not be included as we will collect by courier]
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