Goal Zero  Yeti 400 Lithium Portable Power Station

I bought this Yeti 400 Lithium back in the spring and had perfect timing because the place I work/live in the summer can have power failures. I use a rather old S9 CPAP and can easily run it for three to four nights with this. Be aware that if you hope to run a CPAP off the DC port, you may have to buy converter to change the 12 to 24 volts depending on what your CPAP manufacturer requires/offers. Very conveniently, the Yeti 400 Lithium offers two regular AC outlets. BTW, this Yeti weighs less than 17 lbs (not 30!) - easy to bring on a camping trip. It is not intended to handle the power draw of an electric skillet or a waffle maker.

I hope the video attached speaks for why I rated the Y1400, 5 out of 5. Post back for questions if you have any. Thanks!

I bought the Yeti 400 Lithium and the Boulder 100 solar panel to provide power for a small cabin "off the grid" in Colorado. I easily strung six of the 350 lumen GoalZero lights and used the various ports for recharging devices and powering small tools. Everything worked as expected. My biggest concern was adequate sunlight for recharging since the solar panel is not in an optimal location. The 100 watt panel did the job - at least in late June when the sun was overhead (I'll try it again this fall). I really liked the ability to quickly unplug the unit and take it with me to a work location away from the cabin. Expectations are important - I didn't expect the unit to drive appliances, power tools or heaters - and I don't think it would work well for these applications.

I keep close track on my calendar to recharge for a full battery to prepare for outages. The city has several outages & 400 does not help with appliances like the TV; only 30 mins. So, just ur cell phone, smart pads, laptops will be okay... My family told me to throw it away :-( I’ve dragged this 30 lb. battery to picnics and GZ 400 that feels like 50 lbs NOT 25 lbs!!!! I weighed it! On the average would get 2-3 hrs. of music. I tried to plug in 2 waffle makers & 1 electric skillet at a company breakfast function; that didn’t work as well... Oh well, another gadget that sounded good in theory. I’m currently seeking a light quiet real generator with solar feature.

I used it when I went car camping for 10 days. My CPAP used about one third of the charge a night. In conjunction I used the Boulder 100 that topped it off on sunny days. It has one design flaw though. The LED information pannel cannot be set to not light up at night. It woke me up several times until I taped over it. I contacted Goal Zero who said there is not a way to fix this. To just keep taping over it.

I got the yeti 400 lithium after speaking directly with Goalzero I have to use a cpap when I sleep so I needed to make sure that this unit would hold up to at least 8 hours of use and after using it for a week and having power left over each day I can finally,after a few years of not being able to, start planing camping trips again

I've been testing this unit for the last week checking its suitability for outdoor photographers. So far things look promising. At capacity the 400 Lithium can charge 6 LP-E6N camera batteries, 2 iPhones 2x, 2 MacBook Pros 1x, 8 hours of CPAP (no heat/humid)... all with about 25% remaining on the 400. That would be enough for camp lighting, etc. Good results in my mind. Soon to pair with Goal Zero Solar.

Bought a couple of these for the bedrooms in response to PG&E's threats to cut power. It's the Apple/BMW of rechargeable batteries. Slick does everything for you and if you don't understand electricity pay a little extra to get their Boulder solar cells. 2 100w solar cells lying flat gives me 95 w. 1 tilted gives me 80. The limit is 130W. If you want to buy a GZ competitor's 100w cell at LT 1/2 the price you need the following adaptors: MC4 to Anderson. Anderson to GZ8mm. Don't forget to switch polarity and mind the solar cell voltage is LT 22v. Some electrical experience is good or you may fry your 400.

If you plan to use the 12v socket, don't buy this unit. I purchased the unit to run my ARB fridge. I plugged in my fridge when the Yeti has about 50% charge. Nothing happened. My volt meter showed 10.9 volt from the 12 volt socket. The Goal Zero tech support said the socket is connected direct to the battery. So, with lithium battery you shoukd expect to get around 10.8v. I'm not sure why they added a 12v cigarette plug. It is pretty useless to me.

I use a cpap machine and recently we went on a 6 day 5 night float and this machince worked great.It powerwd the cpap,air mattress and helped charged phonesIt had 20%power after all that .