I'm sure this is going to lead to a lot more questions. I'm still looking at parts. I wanted to get a USB rechargeable battery but didn't know where to start. I want as many mahs as possible while still being powerful enough. I wasn't sure how many amps I should look for. I was think 20 at a minimum/ Way too much? Not enough? Are there places on the board that make it so I can have two batteries connected at once? Where can I find the most relevant battery choices in one place? At this time I have a box picked out (it's custom, not made to be a pv) but I have no idea what the dimensions are. The custom box is the biggest deal to me so I'm willing to compromise in order to be able to fit everything in. I'm pretty sure I covered all my initial battery questions. Thanks guys!