Hi! I have two boys ages 10 and 8 and we are all new to RC! For Christmas they are getting Fazon Voltages. One of my sons favorite color is blue and the others is green, so they were a perfect match! I’ve been doing a lot of research and the Lipo batteries scare the crap out of me, so I ordered 12 of the Arrma 18650 and the Arrma 6 bay smart charger for them. I’m hoping with those 12 batteries, and the 4 that will come with the cars, that we will have some good run times! Has anyone used the Arrma 18650 smart charger? I’m curious as the how long it takes to charge the batteries. I also ordered extra differential cups just in case too. I can’t wait for Christmas! I may have to get me one!