Some of the best accommodations in the world’s most beautiful places do not have electricity and that can be a problem if you sleep with a CPAP. Before you read this review of the Bluetti EB3A Power Source, you should know why you need one. A portable solar-powered battery pack is great for camping. You can use it to charge phones, computers and other electronic devices when there is no power source onsite. But if you have sleep apnea, a CPAP backup battery can be essential for your health. Not having a power source for my CPAP machine has limited the amount of tent camping we have done in recent…