CPAP machine and batteries
I've just been informed I have to use a CPAP machine and was wondering if anyone out there uses this with just batteries, currently have 2 AGM 12 volt batteries group 31 I think about 240 amp hrs and...
Forum Discussion
My wife has used a CPAP for years including all the years we travelled as part or full time RVers. If you have a CPAP that only operates on 120v, you can use an inverter. Get a small unit because inverters waste power as heat. Most get so hot they have a built in fan. All wasted energy. If you camp a lot or are getting a new unit be sure to get one that operates on 12 volts without an inverter.
Most CPAPs will use about 25 AH of power so the drain is manageable. The problem occurs for the use of a humidifer or one of the new heated hoses. Those devices can use several times the amount of power. It can be a major issue in cold weather. To get by my wife sets her unit on a hot water bottle and wraps it with insulation.
There was a question about the validity of CPAPs. This is not a good place for a detailed discussion but I can make a quick summary. First many people really do benefit and without a CPAP have all sorts of issues in addition to not sleeping well. Unfortunately, much of the "science" and testing is questionable. It is no accident that Respironics makes most of the CPAPs and also makes the testing equipment including the software that analyzes the results. I was among the high percentage of those tested who was told I needed a CPAP. I insisted on a retest at a different facility and got a completely negative result.
Most CPAPs will use about 25 AH of power so the drain is manageable. The problem occurs for the use of a humidifer or one of the new heated hoses. Those devices can use several times the amount of power. It can be a major issue in cold weather. To get by my wife sets her unit on a hot water bottle and wraps it with insulation.
There was a question about the validity of CPAPs. This is not a good place for a detailed discussion but I can make a quick summary. First many people really do benefit and without a CPAP have all sorts of issues in addition to not sleeping well. Unfortunately, much of the "science" and testing is questionable. It is no accident that Respironics makes most of the CPAPs and also makes the testing equipment including the software that analyzes the results. I was among the high percentage of those tested who was told I needed a CPAP. I insisted on a retest at a different facility and got a completely negative result.
