We saw the beginning of the of the battery invasion into the outdoor power equipment market in 2014 and 2015 looks to be the year that it goes mainstream.  Companies like DeWALT, Greenworks and EGO all have some game changing technology on the scene.  We saw the Husqvarna 36V cordless chainsaw a few years back at GIE when it was still under development.

Looks like they are getting ready to launch. Lithium ion technology is nothing new but a backpack battery that lasts all day is new to me.  Husqvarna is built for the Pro.  I am sure they have an uphill battle getting the pro to switch from gas.  All the pro has to do is use it once.  He will be sold like I was.