Some sump pumps can have their own battery backup or alarm if not working.

The wifi is what will allow you to access the door remotely.If you don't want wifi on it, Then you can still get a smart lock you'll just need to pre-program several different codes into it, and then give out those codes appropriately but you'd need to be on site at the door itself to program initially or update it.From personal experience I find the touch screen or wifi locks to be complete POS's that are not reliable and the battery does not last long.  

You have to mine 240 tons of soil for the rare minerals used in Electric batteries.  

Electronic Lifts- disconnect the battery if leavingfor long term storage.K.

But if one sees it from the larger ecosystem for example, let's say Tesla , created demand for nickel in the nickel-producing country to build the battery.

  $5 for batteries and whatever your time costs. 

If so, install a propane pig underground, and hook up a propane generator to it if your local regulations allow for it.If a propane truck can't get get to the site, there are several all-in-one battery solutions that have the battery and inverter and solar panels together. 

If you have internet connection onsite the meter has 5 year battery and you can read it remotely.The old versions basically had an outside meter in a lock box in parallel with the water line.  

For whatever reason, these remotes seem to always end up with a broken battery cover.  

You mean like usb plugs, wireless chargers and what else?