Greenworks 24V 12" Cordless String Trimmer Kit

I've had this trimmer since Aug 2021. The biggest issue is battery life. I don't know if i have a bad battery or what, but this thing does not last even close to 40 minutes. My experience is that the battery works fine for 15 minutes, and then starts to slow down. The RPMs on the trimmer go way down and then it might get a spurt of energy for a few minutes before slowing down again.I just edged my front yard and the battery only made it half way. You can't get a consistent cut at all. My suggestion is to look elsewhere, but again, my battery may be bad. I'm going to reach out to Green works to inquire further and will update my review afterwards.**UPDATE May 28, 2022 **So Green works has approved a replacement trimmer. I received a new battery and it was the same issue. I had to take the trimmer and batteries to a local shop for a warranty review. Greenworks approved full replacement and I expect the new trimmer soon.My biggest issue? Customer service. It is terrible. I have spent at least 10 hours on hold / in queue waiting to speak with a live person. Typically it takes a few hours to get through, even with the call back option. This, and the fact that they promise to send you tracking info or to send an email and it never happens. I've been waiting in my new trimmer for over 4 weeks now (since I sent it tonthe shop for warranty review) and I have no clue when I'll get my replacement. It's seriously so bad that I'll never buy from Greenworks again.