However, if you installed a complicated thermostat that is difficult for the average user to operate without a manual, then you should bare some responsibility.Can they just unplug it, remove the battery, and wipe the memory? 

Hello all,I've put solar panels with a backup battery on my primary home within the last year.

Firestone would still sell tires, but oil changes, batteries, belts, and brakes are not used much on electric cars.   

While it is very common for owners to have tenants responsible to change batteries in smokes, furnace filters, light bulbs etc they also need to be smart about it. 

If off the grid, depends on your Battery storage. 

Most home electricity is consumed in the evening when your panels are either not producing or producing at a degraded efficiency.To fully offset your electricity cost you will need batteries as well.

The exceptions would be consumables (light bulbs, smoke detector batteries, etc.) and things you've specifically said (in writing) that you will not maintain.

Have a set of backup keys in a lockbox outside the property in case the battery dies.

Even if they hold to the $40K price, that is without options like no all wheel drive, smaller battery, lower towing capacity, etc.Personally, I say drive what you want to drive.

These camera's use battery that last almost 2 weeks and take tmobile SIM card pre paid .