We (MAC Tools) started selling Makita then switched to some off shore POS. Stanley (our parent company) bought Dewalt and away we went. The MAC branded cordless are made by Dewalt but to MAC'S design specs. (More automotive related)I burn yellow as that was what was available. I burned up lots of makitas to know i wanted something different. And all my yellow batteries still work. Good enough for me.
My buddies all had the older red stuff, and in very short order they needed new batteries. Times have changed, batteries have improved. I sticking with what works.