Bests & Worsts Reviews from Amazon

I have tried my luck with cordless electric trimmers before and the batteries never lasted very long, or they were underpowered so I was hesitant to go that route again - but like most people I can't stand dealing with oil+gas mix, or priming and yanking the cord 50x to get a gas model to start after you've owned it for a year or two. This 40v lithium battery works wonders and I can do my entire yard on one charge. It also recharges the battery in < an hour if you need to do more. The edging feature is nice although i've only used it a couple of times in the 5 weeks i've been using the strimmer (you can press a button to rotate the head 90 degrees and flip down the edging guide). The auto feed spool seems to work great and I bought a 2-pack of extra line when I ordered this to be sure I was set for all summer. If you really have a larger yard, I think on a moderate speed setting you should get 45 minutes to 1 hour of trimming so you may want a 2nd battery if you have a lot of trimming to do. I recommend spraying down the trimmer with a hose after each use to keep it clean and the grass from clogging up the guard. The other big plus of this battery powered model is it is a good bit lighter than any gas trimmers that i've used in the past. Did I mention you just squeeze the trigger and it runs every time? No yanking a cord and hoping you can get it to work. A note on height: i'm 6' 6" tall and it works well for me, I wish it was slightly longer but if I just switch from left handed to right handed trimming I don't have any issues doing the whole yard and having to stoop much.