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Main Clinic Supply

How many batteries will cover your day?

Worried about being caught short? Answer three quick questions and we'll tell you, in plain words with no spec sheets, how many batteries you'd carry for a typical outing.

1 Which concentrator? Not sure yet? That's fine. Pick the last option.
2 What is your flow setting? It's the number on your prescription, usually 1 to 6.
No problem. We'll use setting 2 as a common example so you can see how this works. Your prescribed setting is the one that counts, so confirm it with your doctor or an Oxygen Specialist.
3 How long are you usually out? Think of a normal day away from your charger. Flying? Airlines want battery for at least 150% of your door-to-door travel time, so use that bigger number.
Answer the three questions above and your plain-language answer will appear right here.
1battery

Want someone to double-check this against your exact prescription?

📞 Call an Oxygen Specialist See this model

Battery runtimes are estimates that change with your flow setting, breathing rate, battery age, and temperature, so treat this as a planning guide rather than a guarantee. Hours are for the battery named in your result; a double or extended battery roughly doubles them. Portable oxygen concentrators are FDA-cleared devices that require a prescription. Always confirm your setting and battery needs with your physician and a Main Clinic Supply Oxygen Specialist. Planning to fly? Air travel uses a different rule (enough battery for 150% of your total trip), so start with our FAA Approval Checker and pack to the 150% rule.