Same for smoke detector batteries.

My lease states tenants are required to replace light bulbs and smoke detector batteries; my FL attorney wrote the lease.

, motor oil stored in the garage, usually a dead battery there as well, etc.

There is also usually a battery hit since they are always running in the background waiting for a call.

Consider adding any of your properties to be offered by reserve auction.Study the market, have a plan, know your spending limits.Form an investors group, pool cash for more buying power.As an investor always be prepared to do business.( keep contract offers with you, blank checks, screw gun, flashlight with good batteries pens and blank addendum).Wishing you good luck and successful investing. 

Guys have been there for 10 years and she told me that she took battery out of smoke alarm because it goes off  when she is making grilled cheese :).

The other realtor talked me out of student housing because her students drove an SUV into a dining room and others took batteries out of the CO and smoke detector to put in their controls!!!

we change locks and check smoke detectors and put new batteries in them. 

I figure  it would take to run on solar and battery bank system $30k.

@Anthony SimboliYou can go to ASHI.org and search for a certified one, they passed a battery of tests to become certified and follow a code of ethicsPaul