need to replace?

I got a dewalt 20 volt angle grinder for my birthday. I havent plugged in my other grinders since june. I use it almost daily. Zero disappointment.
Kids got me the combo drill/driver set a couple weeks later, also 20 volt. I have 3 electric drills i rarely use. Keep in mind i work in my shop for a living, so daily use isnt an exaggeration.