It's a lot more efficient to just run a fan directly off the battery, rather than laundering it through an inverter. Since I've got lots of 20V and 60V Dewalt tools, this fan was a no-brainer. Runs all night and then some on the same battery I'd use for a leaf blower. There are two versions. A slightly more expensive one has an AC port on it for using it with grid power, too.
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Then we got two acres of kale growing lol
And a spot about 100x100 of turnips and two smaller fields of assorted green and for some reason two acres of deer greens to feed the cockroaches, I mean deer
And by the way, I love kale
Generally getting it from n by sept 15th is best but the old folks always said plant any crop before All Hallows’ Eve and your chances are good for getting a cropI waited too long to plant kale, may throw some seed down this week as a hope and prayer. My family devours it.
Don’t forget to factor that at 80%. You’ve got inefficiencies in the DC-AC inverter and voltage step upIf a box fan draws 80W of power, at 18V that's 4.44A (80W x 18V = 4.44A) then the batteries will last around:
2Ah battery - about 1/2 hour
4Ah battery - about 1 hour
6Ah battery - about 1 1/2 hours
8Ah battery - about 2 hours
I have a decent amount of batteries because each time I get a tool, I try to get it on sale with a free battery. This would also be useful in charging phones and smaller items.