Or more likely that the device is not able to read the life of the battery? 

RInse and repeat.Its a grind but the good news is once you gain traction you can hire a VA to make the calls so you can talk to the hand raisers.

With so many new devices that people use, I tpically have 100amp as a minimum.

Goal 3) take more time off my digital devices and focus more on family time.

You can also list those rentals in the MLS with a realtor and probably find quite a lot of traction, as there are many home buyers who sold their home and need a short term place to stay (1-6 months typically) until their new home build is completed and utilize their realtors to help them find something. 

@Greg Strunak have you tried the anti-barking devices they sell online?

I'm not getting a lot of traction with leads, and am bleeding money each month. 

- iPads or other such devices?

It all comes down to people not getting traction.

It takes so long to get traction that it’s hard stop. ( At least for me.)