If you're looking for somewhere fairly safe and consistent to store cash, land purchases in this area could be a good option.

I would contact the store or manufacturer and see if it falls under warranty.

Again, the BiggerPockets store has some books for this or you can learn by watching podcasts, reading blogs, and interacting on the forum.

If it were me, I'd buy a couple of them and ask my cleaner to swap out the batteries if they saw the batteries were under a certain level with fresh ones, and then have the cleaners charge up the batteries as part of the service contract with them.Mike

It does not matter if you have a small online store, have a mobile coffee shop in a trailer or if you are flipping couches.

Again, the BiggerPockets store has some books for this or you can learn by watching podcasts, reading blogs, and interacting on the forum.

You need to head to a store and look at appliances.

I do think that Doorloop is probably one of the few software options for new and fresh.  

Also watch for chain retail stores that are closing, particularly multiple locations. 

Our plumbing supply store.