Nice video
I still run sla batteries , granted lithium is lighter and runs longer without question , but comparing a 7amp to a 10 amp , I run 10amp sla batteries and get 5 years use , with an average of 4 days a week , most 10 hr days, but only 3 months use
And $20.00 , a piece
My new shuttle has a lithium but have not put it to work yet