The trick with batteries is to buy them with another tool. You get better value, assuming it's a tool you can use. I rarely buy power tool batteries on their own unless I see them on sale and take advantage of the opportunity. I have probably like 10 Ryobi 18v batteries now, and two Greenworks 80v batteries. I want to try to get maybe 2 more Greenworks ones then I think that is going to be more than enough.
I have the Greenworks chainsaw and the snow shovel (throws snow upwards to get it in the yard) so far. Have not used the chainsaw yet since I don't have a way to get to my bush property but looking forward to trying it. I used the shovel almost exclusively since I got it. Snowblower has been acting up and my garage is unheated which makes it suck to work inside. I plan to insulate it and turn it into a shop... eventually.
Greenworks also makes an earth auger that I am interested in getting, and also a power wheelbarrow. Electric stuff is awesome off grid, the power is free and basically unlimited. Zero emissions is only the icing on the cake. Now if they could make electric ATVs and stuff too, that would be awesome.