Apathy

Do yourself a favor, get Makita. My Dad sold tools as his livelihood, thats what he sold and used. Now I use them. Great tools and an actual company with great customer service.

I use Milwaukee and Ryobi.  I had a bad Ryobi battery that only took one charge.  Home Depot replaced it with a bigger battery which killed the trimmer. Repairmen said it probably overheated because the bigger battery allowed the trimmer to be ran longer.  No parts available so they shipped me a new trimmer.  The repairmen told me what Toe said as far as manufacturing.  Not much trouble with the Milwaukee tools.

Ryobi user here as well.  Never had an issue and the batteries work with the older stuff as well as long as the voltage is the same.