I just bought a second home, my first home will eventually be converted to a full rental property, and I am investing in solar/battery storage for the second home this year.

Then, you can prioritize performance, battery life, design, features, brand, etc. based on your needs. 

Battery technology (i.e. the SunPower SunVault or Tesla Powerwall) is where the bigger 'cost' is comparatively.

Ensure all smoke detectors are accounted for and have a working battery.

Our goal with this app is to get an idea of who we are showing, whether they might pass our screening if they apply, and if there is any danger to the agent showing the apartment.So far, I have noticed trends of criminal charges in Chicago & Cook County for things like theft and domestic battery with the disposition of "Nolle Prosequi", which I think means that they were brought up on charges, but the prosecutor declined to prosecute the case.

Zero issues and the 9v battery has lasted almost a year at this point.

Platinum-grade batteries with a three-year warranty, brake pads guaranteed for life, windshield wipers changed every year, Michelin tires changed every 2 years, oil changed every 5000 miles.

In theory, you can purchase with no money down, certainly with less money, and keep some for reserves and light reconditioning of the property to increase rents.

The homes are old, but if my prediction is correct, a larger percentage of them will be rehabbed over the next decade.2) Imperial Beach is the cheapest Beach front in the US for at least 400 miles.3) Salton Sea area (probably Imperial County and not San Diego county) due to the minerals that are being extracted for batteries. 

We’re in FL and when it’s super hot outside- but cold inside with the AC, condensation builds up in the battery pack and shorts it out.