I have the RYOBI 40V HP Brushless 14 in. Battery Chainsaw (
see at Home Depot).
Full honest review here, as I've been using it for several years now both in my yard and on the trail.
PROS- The battery life is great, I have 2 batteries but rarely on a job in my yard have I needed to swap over to #2. The charger is great and all the lights and indicators are easy to use. I also like how firmly and secure the battery feels attached. It's a nice sized saw, not too big or small, I have felled a few large Pines in my yard with no issues. The chains are widely available and are pretty inexpensive.
CONS- In my experience, this thing drips too much bar & chain oil. So much so that I keep it on a sheet pan when not in use in my shed. When on the road for a few days, it looks like about 1/2oz lost in the truck bed. Not the worst but still a huge mess. Another common problem for me is this chain loosens quickly, it will need to be checked often or it will fall off mid-cut.
For a cheap saw that I can take anywhere, it gets the job done well. I would buy again, but I'm sure better options are out there.