I am interested in a green works snow blower. Looking at the 60 v 4 amp. Any recommendations? My question is can I use the 60v 4 amp battery in my green works lawn mower, which has a 60v 5 amp battery. And can I use the batteries interchangeably? Will the lawn mower battery 60v 5 amp battery work ok in the snow blower? Thanks for your input!