Back in my younger years, I had no idea I had sleep apnea. I just knew I was always exhausted, no matter how much I slept—especially when I worked third shift at a state prison. It wasn’t until my wife pointed out how badly I snored and suggested I get a sleep study done that I began to connect the dots. Turns out, she was absolutely right. The results came back: severe sleep apnea. That’s when I picked up a ResMed AirSense 10 CPAP machine, and my sleep—finally—started to improve. Fast-forward to summer 2025. Over the past few years, whenever I did a survival weekend trip, I’d tough it out and sleep without my CPAP. It wasn’t ideal, but I managed. However, just a week before my upcoming Basic Survival 101 Course scheduled for June 20–22, I decided to do a reality check. I was camping at White River RV Park and, without my CPAP, I found myself waking up every 20 minutes. That’s when it hit me: I can’t do these weekends without my CPAP anymore. The problem? My camp has no electricity. Last summer, I watched one of my students and his two teens effortlessly charge their phones and devices all weekend using an Anker Solix portable power station—pretty sure it was the C1000X model. I was impressed, but $500 for a power solution felt steep, especially when I just needed it for my CPAP. So, I shifted my search toward standalone CPAP batteries. I explored a few: the Easylonger CPAP Battery ES400 Air at $169 (tempting, but reviews made me pause), the Night Owl (decent, but $300 felt like too much), and the Bluetti X30 (also $200, but the reviews didn’t inspire confidence). I also looked at the Portable Outlet PO-160UPSv2 and the Pilot-24 Lite from Choice One Medical, but again, the price-to-performance ratio didn’t sit right with me. If I’m dropping serious cash, I want five-star peace of mind. And then I found it—the Renogy 72000mAh 266Wh 12V Power Bank and CPAP battery. Nearly five stars, with reviews from people who used the same CPAP machine I do and claimed it powered their sleep for multiple nights without a recharge. Sold. I ordered it on Amazon for $159 with overnight shipping. When it arrived, the battery was about 75% charged. I topped it off in preparation for the weekend. The battery came with two USB-C PD ports and a DC 12V/5A cigarette lighter port—perfect for my AirSense 10. I did have to purchase a separate ResMed DC adapter for around $29, but once that arrived, I was ready. Friday, June 20, was long—setting up camp, greeting and assisting students, then jumping into training. By the time I finally crawled into bed, I was wiped. I plugged my CPAP into the Renogy and hoped for the best. It delivered. The battery powered my CPAP the entire weekend without needing a recharge. By Sunday, I still had over 50% battery life. I even used the USB ports to charge my phone. The only minor issue I ran into was that if I bumped the cords too hard while sleeping, the CPAP would shut off—but aside from that, I was seriously impressed. Let me be clear: I’m not sponsored by Renogy, and I don’t get anything out of recommending them. This CPAP battery is still new to me, and I’ll see how it holds up six months from now—but based on this experience, I can say with confidence that the Renogy battery is the best bang for the buck I’ve come across.