Every generation, the batteries get better and better. My first cordless were old NiCad batteries that slowly died to nothing. Second were a Lithium Ion, but the BMS in the battery made it so they slowly drained some of the cells until they were dead, and the battery stopped charging because of the huge imbalance in the cells.

Newer ones are much better, especially if you get the "pouch" cells. They'll basically last forever. Even the newer Lithium Ion ones are fine, because they fixed the wonky BMS stuff.

Battery powered stuff is probably better than corded at this point, unless you really can't manage a battery charger and swapping batteries. Heck, my battery powered chainsaw is better than my old gas powered chainsaw (again, unless you consider battery charging/gas filling), but I don't ever have to leave my house to go fill up a gas can either, so it's probably a wash.