Battery backup for an oxygen concentrator
A stationary home concentrator runs all day, so it is one of the hardest things to back up with a battery. Typical draw is 250 to 400 W (we use 300 W), which is about 7,200 Wh a day. A 1,000 Wh station (about 850 Wh usable) runs it roughly 2.8 hours; a 2,000 Wh station roughly 5.7 hours. Portable pulse-dose units draw far less (typically 40 to 120 W on AC) and have their own internal batteries.
What to do
- Ask your supplier for a backup plan: most provide cylinders or a battery-run portable unit for outages.
- Read the nameplate for watts and check whether it needs pure sine wave output.
- Test with a plug-in watt meter at your actual flow setting; lower flow draws less.
- Register with your utility medical baseline program.
Open the runtime calculator with this device filled in
Watts are typical values, not measurements of your device: the nameplate or a plug-in watt meter wins. Sums assume 85% of rated capacity reaches your outlets (how the numbers work). Look for pure sine wave output, and check your manual for a DC option. We list no prices and have not hands-on tested any product.