I have a long time alarm contractor hardwire them (lots of batteries are a pain).  

Downside is that if you're using it outside with it's water-proof case, it doesn't get external power (just the battery pack), which will only last a few hours. 

Roku TV 40”, 1 Roku TV remote control (batteries included), 1 Quick Start Guide, and 1 TV stand + hardware MODS - This is an Alicia approved post!

You should also test all batteries in smoke detectors ahead of the inspection and be on the lookout for any lights that are out particularly in hallways or stairways.Many of these are things that the tenants should have told you about, but you don't want to find out the hard way when Section 8 fails you for something like that.

"I bought a house and the seller didn't leave batteries in the garage door opener"BP posters"Contact your attorney.""

Assuming there is zero way to get other power to those fixtures (including paying an electrician a few hundred $’s so it’s right for this and following tenants.) and you can’t find a decent battery operated version.

And make sure you have lots of battery or shake flashlights in the future:)

-a module for general communication.

., changing light bulbs, filters and batteries).

Even future battery innovation, company such as Quantumscape (this is the biggest thing in EV) has HQ in Bay Area.