/diy/ - Do It Yourself

I want to start using LiPo batteries for my projects so I don't have to run a USB cable to them or jam a stack of traditional batteries inside. What do I need to know to get started? I'm not looking for much, just something that'll power an Arduino and some neopixels to start off with. I've read the link in the OP already so no sense in pointing me to that again.