Hey! So I'm building raspberry pi & camera powered buy a solar panel system to make a automatic timeline of a constructing site (It needs to work for about ~9months). The rasp only needs to be on a few minutes a day to take a picture or really small video (max 1min). So this is my plan: Hardware: 1x Solar Cell 6V 330mA 1x RaspBerry Pi Zero W (latest edition) + Camera 1x Normal SmartPhone Power Bank (Input: 5V 1000mA && Output: 5V 1000mA && 2600mAh) 1x Pololu 5V Step-Up/Step-Down Voltage Regulator S7V7F5 1x Arduino Nano 1x RTC Module 1x Transistor My main goal is to maintain the Arduino with the RTC Module turned ON all the time and every day at, for example, 4PM it turns on the rasp and after 10minute it cuts off the rasp's power again via the transistor (the rasp will auto shutdown itself after the picture/video is taken). PS: All of this is powered by the power bank The solar cell will always be connected to the voltage regulator and in turn, the voltage regulator will always be connected to the power bank. Will this work? What would you improve? Thanks in advance!