The batteries last about 6 months in each camera before recharging (aka no wiring either). 

Once you do that you do that you have room to talk.The education is setup just like Phoenix College, where you have post and pre testing after every module.

If I don't hear from them by the next day or so, I send them a text asking them to check their email; I then usually get a reply email within a couple of hours after I send the text.When I go to the house, I have everything I know I'm going to need (filters, batteries, etc). 

modules=k6.  

@Jason James Tesla is opening the largest battery factory in the world (called the GigaFactory) just outside of Reno in 2 years and the general business climate is improving.  

I would go with a battery operated (stand alone), which is the cheapest route to go. 

I'm talking about gas, oil, tires, battery, wiper fluid, etc. etc.

Misuse of the batteries could cause damage, but the same could be said for most other modern portable electronics.

Authorities always encourage everyone to change the smoke detector batteries at the beginning of the new year. 

For example, I scheduled a vendor to install the new 10 year lithium battery smoke and carbon monoxide detectors.