I am very new to electronical components, and I am not sure if I can do the following:
I am planning to start a project where a RPi Zero W would record 720p and/or 1080p videos (60fps ideally, else 30fps will be enough). That RPi would be powered by a LiIon/LiPoly battery, however I am not quite sure how to read the values before buying the components.
From that I have multiple questions. Let's take the PowerBoost 1000 for example. It claims the RPi can be powered by any 3.7V LiIon/LiPoly battery with it.
On that thing, I am not quite sure how a 3.7V battery can be "boosted" to 5V?
It is written
USB Boost @1Aon the title, but the description is
2A internal switch (~2.5A peak limiting) means you can get 1000mA+ from a 3.7V LiPoly/LiIon battery. Just make sure your battery can handle it!. What does the internal switch mean, and how to use that switch?
A 2A power source is recommended for a RPi. Is that PowerBoost would be sufficient? Why? Would the 500 version be enough?
I read about wrong polarity being used on those 3.7V batteries. What does it mean exactly and how to prevent using the wrong components?
A part from the charging ability, what difference is there with the Pimoroni LiPo SHIM?