subject: CPAP Travel Guide Part 1 - The ResMed S9 CPAP Machine and Battery Power [print this page] CPAP Travel Guide Part 1 - The ResMed S9 CPAP Machine and Battery Power
The baby boom generation is beginning to retire and travel more. Within this new paradigm, various questions about travelling with CPAP machines are questions we consistently answer and blog about. Moreover, manufactures such as ResMed and Philips Respironics have made significant strides in meeting the demands of travel with CPAP machines.
Like most other progressing technology, CPAP machines have been getting smaller with more robust and dynamic technology. Gone are the days when packing a CPAP machine and battery required another suitcase. Today's CPAP machines are lean and lightweight; not much bigger than an alarm clock and weighing just a few pounds. Although camping requires a battery, re-chargeable lithium batteries are lightweight and work for many hours (when not using a humidifier).
The ResMed S9 machine is one of the most popular and effective CPAP machines on the market. Because of its size and effectiveness, it is a natural travel companion. Therefore, CPAP users with ResMed's S9 CPAP are always looking for ways to meet their varying travel needs from road warrior to family camping trip. To help CPAP users make best practices travel decisions, ResMed has recently certified the use of an inverter and converter which are effective for using the S9 in situations without standard electricity. Regarding the inverter, ResMed has done extensive testing pairing both the Tripp-Lite power inverter with the S9 line of CPAP's. It is the only certified inverter for all of ResMed's CPAP's.
Connecting Battery to CPAP
Most converters and inverters come with a car cigarette lighter plug fitted to provide a connection to the car battery. They can be connected to an auxiliary battery via the cigarette lighter outlet of a car or 4WD vehicle. If you need to connect directly to the battery terminals (such as if you carry the battery away from the vehicle), you will need an adapter cable. Refer to the photograph below. This cable provides a more energy-efficient connection than using the car cigarette lighter socket, because it by-passes the car electrical system.This is where the Tripp-Lite comes into play.
Inverters
There are several different types of inverters available. The most common types are pure sine wave or modified sine wave. The Tripp-Lite is a pure sine wave inverter which produces an output waveform that is the same as a domestic power outlet. In addition to the output waveform, inverters also carry a power rating. This indicates the amount of power the inverter is capable of delivering. Most inverters will have a continuous rating and a surge or peak rating. The continuous rating indicates the power level it is capable of delivering under sustained use without overload.
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