Hey guys, I am looking at buying a Milwaukee M 18 fuel battery powered grinder. It does not come with a battery and even though I already have some of the M 18 Milwaukee tools, I want to get a battery dedicated to this grinder. First question is with this one being the fuel model in my other tools not are the batteries the same? My second question is, should I buy the Milwaukee branded battery for yet or is there a better option online to buy the batteries? I m using Christmas money and have other stuff I want to buy so I want to get the best deal on a battery but again I don t want to buy junk either. I didn t know if anyone has bought the no-name batteries off Amazon or knee of anything else