EASYLONGER owner resources
ES720 FAQs
Match the full model name on your battery label before using a guide.
Jump to resourceES720 Frequently Asked Questions
1. Which CPAP machines does the ES720 work with?
Four DC cables in the box cover the ResMed S9, AirSense 10 and 11, AirCurve 10, AirMini, and Philips DreamStation. The Luna G3, Transcend Micro and Prisma need the ESG3, ESMC or ESPR cable, sold separately. Not sure about your machine? Email support@easylonger.com before you order.
2. How long does it run a CPAP?
About 2–3 nights at 8.4W (an AirSense 10 at 6 cmH2O with the humidifier and heated tube off, 8 hours a night). Higher pressure means fewer nights. The humidifier and heated tube use the most power. With both on at high pressure, expect only a few hours. The runtime calculator can estimate your settings.
3. Can I take it on a plane?
No. At 266.4Wh it's over the 160Wh limit for passenger aircraft. For flights, look at the ES270 (99.9Wh) or the ES400 AIR (148Wh, which needs your airline's approval).
4. Can it power two CPAP machines at once?
Yes. Run one from the DC port and one from the 12V car socket on the battery. Two machines drain the battery much faster, so expect a shorter runtime.
5. How do I recharge it?
Wall outlet: the 72W AC adapter in the box, about 4–5 hours. USB-C: a 60W USB-C PD charger, about 4.5–5.5 hours. Solar: a 100W panel, about 4–5 hours in good sun. The panel needs an 18–24V output and a 5.5 × 2.1 mm DC plug. In the car: about 4.5–5.5 hours from a car socket with an 18–24V car charging converter, sold separately.
6. How do I connect it to my CPAP?
First find your CPAP's voltage on the label of its power adapter. ResMed machines use 24V and Philips machines use 12V. Press and hold the voltage button for about 3 seconds, until the red voltage light flashes at 12V. Press again to step through 16.5V, 20V and 24V. Stop on your machine's voltage, and it locks in after about 3 seconds. Then plug in the DC cable for your machine.
7. My machine is 19V. Which setting do I use?
Use 20V. We've tested 19V machines on the 20V setting.
8. Will it work with a ResMed AirSense 10?
Yes. Set the battery to 24V and use the cable marked "For AirSense 10" from the box.
9. Can I use it while it's charging?
Yes. Plug the AC adapter into the battery's DC input and run your CPAP from the 12V car socket on the battery. That takes a car-socket cable with the right voltage for your machine, such as the EAS10 or EAS11 for ResMed machines, sold separately. Not sure which cable you need? Email support@easylonger.com.
10. How do I turn it off?
Press and hold the voltage button for about 3 seconds to leave the fixed-voltage mode. With nothing connected, the battery shuts off by itself after a few seconds.
11. What warranty do I get?
Five years on batteries ordered from easylonger.com. Bought from another seller? You get three years, and registering with us extends it to five.