Goal Zero Yeti 400 Lithium Portable Power Station, 428Wh Rechargeable Generator and Backup Power Source with 300 Watt (1200 Watt Surge) AC inverter, USB, 12V Outputs
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- 428Wh lithium portable power station can power up to 7 devices at once (39,600mAh at 10.8V/119,000 at 3.6V)
- Continuous 300W, 1200W surge pure-sine wave inverter, 2.4A USB ports, 120W 12V ports
- Charge phones, tablets, laptops, cameras, and most small devices. Provides power for small appliances, lights, CPAPs and more
- Recharges from AC or pair with a solar panel (sold separately)
- Designed and engineered by power station experts with a US-based customer service center
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From the manufacturer
Yeti 400 Lithium Portable Power Station
A high-capacity, lightweight source of on-demand power, the Goal Zero Yeti 400 Lithium Portable Power Station is engineered with the latest it battery technology and features patented electronics for a premium mobile charging experience.
Designed for charging phones, tablets, cameras, and more, the Goal Zero Yeti 400 Lithium can also be used as an alternative to a gasoline-powered inverter generator, running small appliances, lights, even medical devices during short power outages.
Powerful AC, USB and 12V Outputs
The Goal Zero Yeti 400 Lithium Portable Power Station has a 428Wh (39,600mAh @ 10.8V. 119,000 @ 3.6V) capacity, with a pure-sine wave inverter and two AC outlets (300W continuous, 1200W surge), three 2.4A USB ports, and two 12V ports for powering up to 7 devices at once. Whether you’re looking to keep tablets and phones charged up, or running lights and camera equipment, these upgraded ports ensure you have the power you need, right when you need it at the push of a button.
No Gasoline Required, Recharge from the Wall or Sun
Offering clean, silent power, the Goal Zero Yeti 400 Lithium Portable Power Station comes with its own cable to recharge from the wall in 7 hours. It can function as a solar power station, recharging in about 4 hours with maximum input* and has the built-in 'pass-through' intelligence, meaning you can charge it from the sun while using it, all at the same time.
*Solar panels sold separately.
Yeti 400 Lithium Highlights
Informative LCD Display
In just a quick look, know how much power you have left with an easy-to-read battery level indicator. It also features an input/output meter, as well as a runtime/recharge time calculator to completely take out the guesswork of how long it will run.
Replaceable Battery Design and Enhanced Safety Features
We utilize high-quality lithium batteries with a name brand battery management system and additional layers of protection for supreme safety. The lithium battery pack is also user-replaceable.
Improved Shelf-life for Reliable Emergency Power
Gas generators don’t work inside your home or apartment – but the Goal Zero Yeti Lithium does. With a 12-month shelf-life, store it away charged so it’s ready when you need it. Best of all, there’s not gasoline to depend on, and no fumes, mess, or hassle.
Goal Zero Yeti 400 Lithium Portable Power Station
Top customer reviews
Along comes this Yeti 400 Lithium. Suddenly I had visions of what I could be doing better/faster. It's the size of a small lunchbox. Grab the handle and go; there's your charge controller, battery and inverter; complete with exceptionally informative display. Add solar panel and you have a complete power solution for the great outdoors; or indoors during power outages.
Details: The lithium battery can be routinely discharged deeply without much damage to it, unlike with lead acid batteries where deep discharge seriously impacts its life span. It is also relatively lightweight, I measured it as 17 pounds plus or minus a pound or two. In other words you get more of the 400 watt-hours of useful power.
The sine wave inverter is high quality. If the photo uploads work you'll see a photo from a Fluke scopemeter. It looks as perfect as any sine wave I've seen and measures 118.2 volts RMS, right on the money. That's with a fully charged battery; depending on its regulation it might keep that during discharge but I'll test that once I get the battery down a bit.
It will NOT power up a Calumet 750 watt-second studio flash. The big capacitor in the flash looks like a short circuit to the Yeti so it just beeps at me. That's a big disappointment but not entirely surprising. I've ordered high power, low ohm resistors from Amazon and am going to make an inline resistor box to control that inrush current. (UPDATE: It works but the resistors get hot. Need heatsink).
Lithium batteries have a substantial, nearly linear voltage drop as you consume power. It starts out at 12.3 volts but at 50 percent remaining capacity the 12 volt is now 11 volt.
Lithium batteries have surge current capability vastly superior to lead acid batteries and with much less fluctuation in voltage just because of current draw (in technical terms: Lower internal battery resistance) .
I couple it with Boulder 30 solar panels of which I have three. They are rated 30 watts (each) and as you probably know actually getting that much is a scientific feat. They daisy chain one into the next and the last plugs into the Yeti 400.
The Yeti 400 can take up to 10 amps in its charge port. When it comes to charging you think of amps, not watts.
A Boulder 30 puts out 2 amps. The specification is that only 4 Boulder 30's can be daisy chained, giving you 8 amps. The battery is 40 amp-hours so do the math: 8 into 40 if the battery is flat dead (which you should avoid) but that's 5 hours. Three Boulder 30's will go from zero to full in 7 hours or less.
I was surprised to get 24 watts (on a slightly hazy day) charging which is nearly the rated power of the solar panel. That's rather unusual and relates to the Boulder series lower open-circuit voltage which stems from fewer actual solar cells. Less waste in other words. The photo of charging at 14 watts was early morning with hazy sunlight, single Boulder 30, so not that strong.
UPDATE (14 Aug 2017): Best inverter regulation I've seen. At 55 percent battery, the inverter provides 117.9 volts AC RMS into a load of 50 watts. The battery itself, at 55 percent remaining, measures 10.96 volts unloaded and 10.91 volts providing 50 watts into a load. That's remarkably low internal resistance in a battery.
I have had it about two weeks and everything it is supposed to do, it does.
I have charged it with the Yeti 100 briefcase solar panel and it charges just fine - maybe a bit slower than I'd like.
The only negative thing I'd say is that it's capacity is somewhat less than I could use; we suffer during prolonged power outages because it is so hot in Florida, and yet the Yeti 400 only runs my fan for seven hours.
In retrospect, I probably should've bought the Goal Zero Yeti 1250 Lithium Portable Power Station.
But all in all I am very happy with the Goal Zero Yeti 400 Lithium Portable Power Station.
1.) Plenty of USB ports
2.) Works perfectly with Goal Zero Devices
3.) Weighs MUCH less than the regular Yeti 400
4.) Much more powerful than the smaller Yeti 150
5.) Strong enough to use with Coffee pots or even mini fridges
6.) User replaceable battery (Although I haven't seen them listed on the Goal Zero site yet, it is user replaceable)
7.) Shows the AMOUNT of power you are receiving from your SOLAR PANEL!! Great FEATURE!!
8.) Shows how much power and time you have left under current usage!
1.) Not sure if this will work with the Yeti Gas Generator they are coming out with like the larger lithium ones will. I know Goal Zero is a solar company but the gas generator will be great for times when there is no sun.. I just hope this works with it
Overall: I am very impessed with this generator! I highly recommend it
I’ve had the new Yeti 400 Lithium for a little over a month now and it’s never let me down. The new unit, like the old one, is about the size of a car battery. However, it’s so much lighter and easier to carry around than the lead-acid version. The LCD screen is very easy to read and understand, even for a small child.
We primarily use it to charge our mobile phones, as well as our kids tablet devices during road trips or weekends away from the house. We also happen to live in an area with a lot of new construction, so it’s not uncommon to suffer intermittent power outages at our home. Because my wife works from home, she can plug in her notebook to the Yeti 400 and still be productive until the power comes back. All-in-all, I’m extremely satisfied with my new Yeti 400!