CPAP battery life varies depending on the model and your device's settings. Some batteries can power your CPAP machine for a single night (8-12 hours), while others offer multiple nights of use (up to 6 nights) on a single charge.

Most of our batteries can be used as a backup CPAP battery. Look for batteries that support “pass-through” or “UPS mode.” To set up your UPS battery as a backup, you'll plug your battery into the wall, and then plug your CPAP machine into the battery. So when the lights go out, the battery takes over without missing a beat.

While CPAP batteries are generally not covered by insurance, as they are not considered a medical necessity, they are eligible for reimbursement through your FSA/HSA. Check with your insurance provider and FSA/HSA administrator for specific details.

To find a compatible battery, consult our "Best CPAP Battery Power Backup Solutions" guide, which lists batteries suitable for specific machine models. You can also check the product page of your CPAP machine or the battery on CPAP.com for compatibility information, or refer to your machine's user manual.

To maximize your battery's runtime, consider turning off your humidifier or heated tubing, as these features consume more power. You can also use a travel CPAP machine, which is designed for more efficient energy consumption, or opt for a solar charger when going off-grid.