Fortunately the Cigarette Lighter Adapter is included in the package of this product. Also universal AC travel adopter is included, for USA, Japan, EU, UK, Australia. I need to buy nothing except portable battery. I choose battery with cigarette lighter output. GOLABS i200: 12V10A works and it indicates 58-60w, Renogy GP14: 12V15A also works well. I suffer from pneumonia. This concentrater is useful to go out. May be consecutive works 9 h45m, no description in manual continuous hours but timer maxim.

Fortunately the Cigarette Lighter Adapter is included in the package of this product. Also universal AC travel adopter is included, for USA, Japan, EU, UK, Australia. I need to buy nothing except portable battery. I choose battery with cigarette lighter output. GOLABS i200: 12V10A works and it indicates 58-60w, Renogy GP14: 12V15A also works well. I suffer from pneumonia. This concentrater is useful to go out. May be consecutive works 9 h45m, no description in manual continuous hours but timer maxim.

Fortunately the Cigarette Lighter Adapter is included in the package of this product. Also universal AC travel adopter is included, for USA, Japan, EU, UK, Australia. I need to buy nothing except portable battery. I choose battery with cigarette lighter output. GOLABS i200: 12V10A works and it indicates 58-60w, Renogy GP14: 12V15A also works well. I suffer from pneumonia. This concentrater is useful to go out. May be consecutive works 9 h45m, no description in manual continuous hours but timer maxim.

fine not too noisy

fine not too noisy

fine not too noisy