You have to order a third party report called the "High Performance Building Module", which identifies all the areas  you can upgrade / save on utilities - and then presents them back to you in the form of a "menu", so to speak.

Change the batteries on Daylight Savings so you remember when it was last done.

Having the additional equipment, batteries, controllers, inverters etc. can be daunting for a home buyer.

Also they are building an electric car/truck battery factory in lordstown which I believe will build batteries for the new hummer.

Also keep in mind with sump pumps, it might be wise to have a backup battery for them in case you lose power in a huge storm

Some allow the 10yr lithium battery though.As far as major repairs, it's always a worry. 

While the primary purpose of these vists is routine maintenance (clean/change HVAC filters, check backup batteries in smoke/CO alarms, etc.) it provides an opportunity to survey the state of the property and find small issues (the leak under the kitchen sink) before they become large problems (the students will not notice, or remember to tell you, about the leak under the kitchen sink until water drips from the ceiling below)- hold tenants accountable for utilities.  

I'm guessing the biggest pain would be at some point the batteries would need replacing.

On his moved out day not only he left behind his boat and firewood (he has since moved those), he filled all three carts with trash.I opened up my yard waste yard and I see a fishing rod, regular trash bags, broken glasses, corroded car battery, spic and span and other junk.

You might also take this time, as a reminder, to change the batteries in your thermostat, replace your furnace filter, and clear your air vents to ensure your unit is working to the best of its ability.4) This is also a good time to disconnect your exterior hoses. 5) It is also now time to change the batteries in your smoke detectors.