
A night or two between charges.*
148Wh covers most CPAPs for a night, and travel machines for longer. The humidifier and heated tube use the most power, so switch them off when you need every hour.
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148Wh in a 2 lb battery: a night or two on most CPAPs, light enough to pack.
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Free U.S. shipping · Ships from U.S. stock in 1 business day · 30-day returns · 5-year warranty when you buy here ·
Pay with a regular credit or debit card. After purchase, email support@easylonger.com with your order number to request an itemized receipt. Check eligibility and required documents with your HSA/FSA administrator before buying. Reimbursement is not guaranteed.
*Nights at 8.4W: an AirSense 10 at 6 cmH2O, humidifier and heated tube off, 8 hours a night. Higher pressure means fewer nights.
Four DC cables in the box cover the ResMed S9, AirSense 10 and 11, AirCurve 10 and 11, AirMini, and Philips DreamStation 1 and 2. Set the DC output to your machine's voltage and plug in. Luna G3, Transcend Micro or Prisma? Add the matching cable: ESG3, ESMC or ESPR. Check my machine
Questions before you buy? Email support@easylonger.com. We usually reply within 12 hours.
Run your CPAP in a tent, cabin or RV.
Find your machine in the compatibility guide to see which cable and voltage to use.
Keep it plugged in by the bed. If the grid drops, your CPAP keeps running on battery.
Pair it with the ESP110 110W solar panel, sold separately.
Two ways to top up on the road.
ES400 AIR
A night or two between charges.

Capacity
USB-C
Weight
148Wh covers most CPAPs for a night, and travel machines for longer. The humidifier and heated tube use the most power, so switch them off when you need every hour.
ES400 AIR is 148Wh. Batteries between 100Wh and 160Wh need your airline's approval and must go in your carry-on. Ask when you book.
Four DC cables in the box cover the ResMed S9, AirSense 10 and 11, AirCurve 10 and 11, AirMini, and Philips DreamStation 1 and 2. Set the DC output to your machine's voltage and plug in.
A 160W 12V car socket, 30W USB-C and 18W USB-A.





148Wh covers most CPAPs for a night, and travel machines for longer. The humidifier and heated tube use the most power, so switch them off when you need every hour.

ES400 AIR is 148Wh. Batteries between 100Wh and 160Wh need your airline's approval and must go in your carry-on. Ask when you book.

Four DC cables in the box cover the ResMed S9, AirSense 10 and 11, AirCurve 10 and 11, AirMini, and Philips DreamStation 1 and 2. Set the DC output to your machine's voltage and plug in.

A 160W 12V car socket, 30W USB-C and 18W USB-A.
Four DC cables in the box cover the ResMed S9, AirSense 10 and 11, AirCurve 10 and 11, AirMini, and Philips DreamStation 1 and 2. Set the DC output to your machine's voltage and plug in.
Luna G3, Transcend Micro or Prisma? Add the matching cable: ESG3, ESMC or ESPR.
Pick your CPAP to see the cable and the voltage setting.
The included AC adapter charges it in about 4–5 hours.
About 3–4 hours from a car socket, with a car charging cable sold separately.
About 3–4 hours with an 80W panel. The ESP110 110W panel works too.

Light enough to pack, enough for a night or two.
$161.99

For flights and one-night trips.
$139.99

Two to three nights at half the weight.
$249.99
It's 148Wh, so you need your airline's approval, and it must stay in your carry-on.
About one to two nights with the humidifier and heated tube off. A travel machine lasts longer, and a home machine at high pressure lasts less.
Yes, with the ESG3 cable, sold separately. The heated tube isn't supported on battery power.
Yes. The EAS10 and EAS11 cables plug into the 12V car socket and give you 8.5 ft of reach.
Yes. Pass-through charging powers your CPAP while the battery charges.
Five years on batteries ordered from easylonger.com. Bought from another seller? You get three years, and registering with us extends it to five.
Tell us your CPAP and we'll show the cable and voltage.
Nights are estimated at 8.4W, ResMed's published draw for an AirSense 10 at 6 cmH2O, with the humidifier and heated tube off and 8 hours a night. Higher pressure, a humidifier or a heated tube means fewer nights. It's an estimate, not a guarantee.
Estimate my runtime