Many posts. Not sure I'd posted before. We've had 18v B&D chain saws, both a "straight" one and an alligator one, for years. Bought a Kobalt 40v one at Lowes maybe 6 or 8 years ago. Since having an ICD, I'm not allowed to use an engine-driven saw. Gave away my old Stihl back in early 2013. Probably bought the Kobalt then. Had had the B&D ones before that.
The 18v ones don't last long on a battery, but the alligator one lasts the best and is a great saw for small stuff.
We've been very heavily using the Kobalt and the alligator both recently in clearing debris piles made by the May 31 storm last year. Finally got dry enough to get down there with the tractor.
Today, the Kobalt saw quit. Think it's likely brushes got too short. If you have a choice, get brushless, since they're available now, not sure in Kobalt or not. Found a Kobalt 40v at Lowes online for $119 without a battery. Have 3 chargers because we've the grass whip and mower by Kobalt. Just recently bought a replacement 40v battery. Got plenty. The Kobalt chain saw lasts and lasts on each battery, generally around 2 hours of the wife cutting and pulling stuff out of the piles.
Ralph