He actually did allow me into his apartment to show me he had battery powered lights of a sort for illumination and the adjacent neighbor whom I have befriended has told me he is gone out of his appartment 7-8am sometimes 10-11a and is gone until 11 pm.

It's battery operated so you dont have to run wires.   

Batteries need replaced in a thermostat or remote control. 

Battery park which is east of Chamberlayne going up to Barton ave on both sides of Brookland park Blvd have seen rapid gentrification in the 2 years i have been there.

Stay calm and professional.There are cameras that are available (battery operated, motion activated, all sorts of cool stuff) for a lot less than that, if you decide to go that way.

Lever battery powered coded lock.

I will, however, be driving thru Corona this am on the way to San Diego to charge up the battery on my Bentley.

A couple of cheap things, if you have dark areas even if there is no plug you can install battery operated over sink lights for example. 

I don't want to be held liable (financially or morally) if a tenant dies because a smoke  detector had dead batteries.

Will they change light bulbs, batteries, etc?