the T540i XP is not listed in US yet.
https://www.husqvarna.com/no/produkter/motorsager/t540i-xp/967863714/
I didnt pay attention to their 535i XP, I dont climb trees, but I read a comment from a Norwegian who does for the living, and he said he would never go back to a traditional chainsaw when he is trimming the tree tops. He use a MS 241 if things get to big for the T535iXP.
His reason using battery saw is exaxtly the same as what you’re saying, no pulling, no gases right in your face.
I read the 540i XP had a stronger battery compared against 535i XP, but the old style battery can be used on 540iXP but it doesnt have the same spool up as the new battery has.
If the rumors are correct Husqvarna will introduce several other battery equipment this year, probleby a brush cutter first.
I did not plan to purchase a saw this year, that was until those 540i came...