Is a toggle switch necessary for this USB Solar Charger? Answered
Hi all! I am a newbie with a simple question. In the instructable below, is the toggle switch necessary or just a design feature? I thought the circuit would only be complete once the USB device is plugged in, acting as the switch so to speak? It is a 6V solar panel to 3 AA rechargeable batteries, then to a DC boosting converter with a 5V USB output.
Also, a big thanks to Joshua Zimmerman. Love your instructables!