DeborahReese:The portable concentrator is what I had. I will tell you what I had & what I did ans I never had a problem of being without oxygen.
I had 3 batteries & with a permanent marker on the bottom wrote 1 2 3
I had the electric charging outlet that it comes with
I purchased a car adapter ( many are universal )
**While driving to & from always plug unit into the cigarette lighter w/ car
adapter & that way you are not using the o2 off your battery
**Upon arriving at my destination I seek a place to sit near an electrical outlet.
Plug in.
**When returning home plug into car cigarette lighter
1st I would check with company that you purchased your unit from for prices
Check FB Marketplace"portable oxygen " in search bar

I also would bring with me my extra batteries in case there were times that I could not plug in
fyi- there may be 2 vented screen with covers these covers snap on & off they probably have 3 horizontal lines for venting ---- very important never to block this while in use or your unit may overheat CAUTION every 6 weeks take the covers off & clean removing any dust particles. ThenReplace. These covers are small about 2 inches by 1/2 inch in the front of unit.

ENJOY 🤩 😻 🤟
PatV

Hi are you on Medicare? They will pay for it. Actually its rental equipment to them!
Your Dr has to test you and do the paperwork. Hope this helps.

ShitleyJervis: Put your wallet, $$$, creditcards, check book, all checks, savings bank book in your dryer vent. DO NOT do laundry. Be careful.
Go to your mirror and PRACTICE saying " N O"!!! If he wants one dollar, it will become one hundred. If he says he needs a hundred it will become 500.00.
These alleged soldiers whom are scammers are ruthless money diggers.
I'm not saying that is this guy. But, B e careful.
Anything...anything at all that is not right hold your ground. Say BYE.Say NO.
I have been there.
It's devastating.
PatV

1. your insurance will pay for the concentrator.
2. the batteries should last approx 4 hours, depending on the settings.
3. Depending on the size of the tanks, the settings n type of meter you have.
Medicare will pay to rent what you need. If your Saturation is 88% or lower.

Call Medicare 1 800 Medicare.
If you have a supplement to Medicare call your supplement Insurance.

Let me Know.

Cindy

I have a port unit also. I have 2 batteries but when I go out I plug it into car and keep it charging. I'm not usually out very much but when I do go out it's usually to a Drs office, labs etc. I don't go out to eat very much but I find 2 hours is plenty.