A lot of great info from everyone. You're looking at some good batteries there, so I just wanted to say to not be persuaded by a 30A+ battery. The highest are 30A, and unless it's a reputable brand like LG, Samsung, Sony, and some others I can't remember off the top of my head...well, if it's not one of those, chances are it could be a re-wrapped battery with fake specs. An example of a brand that overrates their specs is Efest. While many people use them, a lot say they perform better when treated like a 20A rather than 30-35A, etc.