Solar generator or power pack.

[BigBronco]

OK, so this is for camping. Looking to power 2 CPAP units on a camping trip. No RV or trailer. Tent on back of SUV. Worried the Cpaps will run down the battery and leave us stranded. How much power would one need for two nights in the woods. I have thought of a Honda generator however the noise. What would you who know more than I suggest?

[Helpful_Cub]

There should be a label on your machine near the power cord that says how many watts of power it is rated for. Google is guessing 100 watts with heated humidifier. Two nights, 8 hours a night, two unit: 100 watts/hour * 2*8*2 =3200 watt-hours @ 12V your looking at 267 Amp-hour rated battery.

I hope your machines take 12V directly. If you plan to use an inverter, that's another efficiency impact you'll need to factor in.

I would size it up to 300 or 350 amp-hour just for safety and battery damage reasons. Most batteries don't like to be run to zero and voltage drops a lot as they near that point. Lithium Ion batteries can even catch fire under the wrong conditions.

Then you get to think about how much you want to spend and how heavy... 300Ah lead acid batteries are very heavy. Would be easier to just get 3, 100Ah batteries and connect them in parallel so you can at least move them occasionally separately but at least it be under $400. LifePO4 batteries are amazing in ton of ways, but they are very pricy. You'll be looking at over $500 to hit that capacity.

[flyinbronco]

I have an older model of the Inergy Apex solar "generator ". It's fairly lightweight. It can be recharged via 12 volt while traveling or 110 volt outlet or the solar panels. I'm impressed with the capabilities of the relatively small unit. https://inergytek.com/collections/ki...4-storm-panels

[Jeepergeo]

You want something reliable...and quiet.

Check out Goal Zero. They make battery units in varying sizes....buy one with a bit more capacity than you calc out.

My Goal Zero 3000X recently ran my 12V refrigerator/cooler keeping it at 39?F for a week.

After camping, it would be good to have at home as backup power for your medical equipment.

Be wary of look alike units that claim to beat Goal Zero but fail to deliver.

[BigBronco]

You want something reliable...and quiet.

Check out Goal Zero. They make battery units in varying sizes....buy one with a bit more capacity than you calc out.

My Goal Zero 3000X recently ran my 12V refrigerator/cooler keeping it at 39?F for a week.

After camping, it would be good to have at home as backup power for your medical equipment.

Be wary of look alike units that claim to beat Goal Zero but fail to deliver.

Years back I bought a bunch of Goal Zero stuff. A year and a half later when I needed it none of it worked. Fortunately Costco took it all back. Not sure I even trust Goal Zero.

[200Apples]

Batteries are like bicycle tires. They'll go flat just sitting around.

Your initial investment in 350+ amp hours' capacity will be steep, but! when you can keep them at home on a maintenance charge/float charge then they'll be ready whenever you need them, and for 10 years or so.

Look into the known, professionally-made kits: Bluetti, Goal Zero (yes, I know what you mentioned), etc... or just build your own but when DIY you're going to need to bone up on the fundamental tech of solar power/battery power. Costco might have something.

Refer to Helpful Cub's post for specs.

[BigBronco]

Ordered the Goal Zero Yeti 500X. Prime day was about $150.00 off. Thanks to all who responded.

[twinfin]

Ordered the Goal Zero Yeti 500X. Prime day was about $150.00 off. Thanks to all who responded.

Let us know how it works after your trip. There's nothing better than a good field report!

[BigBronco]

Let us know how it works after your trip. There's nothing better than a good field report!

Trip in not until September. I will test it woth one CPCP at home then two. Still need to aquire connection cords to run with out AC adapters.

[baih777]

I have a Jackery 500 watt to run my cpap in a emergency.
I tested it. I can run my cpap for three nights.

I have a solar panel to recharge and generators.

Sometimes Costco and Amazon might have them on sale. I bought mine on black friday.
It waz $175 cheaper. Took three weeks for delivery.

[madland]

I have the Jackery Explorer 880 1000W power station. Used the HF 25% off coupon awhile back. Ordered a solar panel set from Jackery the other day. It was a better deal than what Amazon was running on Prime Day.
Haven't tried the panels yet or pushed the Jackery very hard yet either.

[edgerly779]

Never use lion batteries indoors. Use LiFePo4 or gel. Lion batteries kill people all the time, Dive boat conception 36 dead, chinese scooter shop new york 3 dead. Lots more.

[duckman1]

A lot of "boondockers" safely use lithium Ion batteries. You have to monitor them, not overcharge them, and use them if damaged. They are lighter, have more capacity, consistency discharge, and last longer. They also cost more.

Sent from my SM-S918U using Tapatalk

[drunktank]

OK, so this is for camping. Looking to power 2 CPAP units on a camping trip. No RV or trailer. Tent on back of SUV. Worried the Cpaps will run down the battery and leave us stranded. How much power would one need for two nights in the woods. I have thought of a Honda generator however the noise. What would you who know more than I suggest?

What brand CPAP and what settings? I turn my Resmed?s heater and humidifier off when tent camping. Running a 38Ah car battery and inverter/adapter, I get 2 nights worth with energy to spare (haven?t tried 3 nights yet).

[brassburnz]

I jumped on the "solar generator" and DIY bandwagon a while back. My first units were Jackery and Bluetti with Lithium NMC batteries. Charging lifecycles in the hundreds. Stepped up to Lithium Iron Phosphate (LiFePO4) batteries. Charging lifecycles in the 1000's. Doesn't mean they go dead, but capacity drops to 80%.

For casual camping, LiNMC powered units are fine. Try to match the watt hours of the battery and the wattage limit of the inverter to match your loads. Prices have dropped on many units in the last year. Avoid For Patriots like the plague. None of the people that provide reviews on YouTube have ever seen one. The other companies send them out for review and feedback.

Look for reviews by Hobotech and Will Prowse. They tell it like it is. No BS.
My DIY system based on Will Prowse's book has been running 24/7 for 690 days. 1040w solar, 2000w PSW inverter, 6000 watt hour LiFePO4 battery bank. Based upon reviews from Hobotech, I run a Bluetti EB240 and EB150 every week. Fans, lights, RV fridge/freezer, and 5000BTU portable air conditioner. Everything powered with solar panels.