My buddy has one of these that I’ve used. It’s fantastic. The thing I like about it is that you wouldn’t need to carry fuel for it if you have an inverted.
DEWALT DCCS670X1 FLEXVOLT 60V MAX Brushless Chainsaw, 3.0AH battery
https://www.amazon.com/dp/B01NBVCQ4W/ref=cm_sw_r_cp_api_vulcAbPSZA9E5
Personally, I’m buying the Makita 36v because everything I have is Makita. It uses two 18v batteries and makes more sense with my other Makita tools.
Makita XCU02PTX1 18V X2 (36V) LXT Lithium-Ion Cordless 12" Chain Saw Kit and Brushless Angle Grinder (5.0 Ah)
https://www.amazon.com/dp/B06XHHKBXS/ref=cm_sw_r_cp_api_WAlcAbC6NSMAB
I used to lug my stihl farm boss with me but it’s a pain in the butt messy (I think it is 23 years old or so). It still runs like a top.