Check out this article on the Harbor Freight Chainsaw.
Harbor Freight Lynxx Chainsaw teardown
Highlights: 10 Samsung 18650’s absurdly large 420Kv motor
I invite somebody (who has more time than me) to buy two of these and put together that fat land speed record machine or the ultimate offroader 
Looks like the blower uses the same battery, maybe the same motor for $30 less!
it looks a bit big for a board, maybe a go kart?
The blower probably has a smaller, higher Kv motor - might be better.
I haven’t checked but the teardown says they have 20% off coupons for Harbor Freight in the Sunday paper. So that’s about $230 for two motors and 20 batteries.
the battery pack alone is $60, with that coupon you could get it for $48/10 = 4.80per cell kinda tempting!!
but actually I can’t tell are the cells welded/tabbed or just held in that plastic thing?
I checked the paper this morning and indeed there is a 20% off coupon for Harbor Freight.
No bms. Surprising to see on a complete product using high power and high voltage using lithium Harbor freight is awesome. They were giving away multimeters recently.