Best CPAP Battery Backup – Portable Power for Camping and Emergencies

The Transportation Security Administration (TSA) and the Federal Aviation Administration (FAA) have strict regulations regarding lithium ion batteries on planes. Many portable battery power stations do not meet TSA and FAA requirements.

You may only take lithium ion battery stations on a plane as carry-on luggage. Even then, you are limited to what batteries you can take with you. Passengers are restricted 100 Watt-Hours per battery. It’s possible to obtain airline permission to take additional batteries, up to 160 Watt-Hours.

Most CPAP machines utilize batteries that exceed these limitations, which is an inconvenience (to say the least) when travelling by plane to your vacation destination. Before you attempt to board a plane with your battery power station, check your battery size.

Battery specs are often listed as Ampere-Hours (AH) or milliamp-hours (mAh) . This can become confusing, since TSA and FAA battery restrictions are listed as Watt-Hours (WH). It is quite easy to convert your AH spec to WH. If the battery is specified using the suffix mAh, you’ll first need to convert this into AH. This means dividing the mAh rating by 1,000. For example, 82,000mAH / 1,000 = 82AH. Watt-Hours = Ampere-Hours X Voltage. You can check the battery voltage on the charger or in the users handbook. Make sure you use the specified input voltage. This may be different to the output voltage. If the battery used in the above-mentioned example has an input voltage of 25V, then you calculate your WH rating as follows: 82AH X 25V = 2,050 WH. It is quite obvious that this battery exceeds the maximum 100 – 160 WH allowed by aviation authorities.

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