Goal Zero Yeti 300 Runtime Calculator
297 Wh LiFePO4 · 350 W AC (600 W surge) · runs a 34 W CPAP with humidifier about 4–5 h
Specs verified 10 Oct 2026 from goalzero.com
KiloHour is independent and not affiliated with or endorsed by Goal Zero. Goal Zero and product names are trademarks of their respective owners. Images: Goal Zero.
At a glance
What the Yeti 300 runs
From its 350 W AC outlets, 0 of 6 listed devices last their usual hours, the fridge, microwave (1,000 w cooking power), space heater, tv, cpap with humidifier and wi-fi router do not.
- Can't run it
Fridge 123 W
Not available
Its startup peak of about 800 W is above the Yeti 300's 600 W surge rating.
- Can't run it
Microwave (1,000 W cooking power) 1500 W
Not available
Draws 1,500 W; the Yeti 300 is rated 350 W continuous. It will shut off.
- Can't run it
Space heater 1500 W
Not available
Draws 1,500 W; the Yeti 300 is rated 350 W continuous. It will shut off.
- Tight fit
TV 120 W
1 h
It runs about 1 h 49 min, short of the 4 h you need.
- Tight fit
CPAP with humidifier 34 W
4–5 h
It runs about 5 h 29 min, short of the 8 h you need.
- Tight fit
Wi-Fi router 10 W
9–12 h
It runs about 12 h 30 min, short of the 24 h you need.
Spec sheet
Yeti 300 verified specs
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Our take
What the Yeti 300 is good at, and what to watch for
KiloHour take A good fit for camping and short outages where USB-C and 12V ports matter more than AC power, but its 350W inverter rules out high-draw appliances such as kettles.
The Yeti 300 is Goal Zero's smallest station in our catalog: 297Wh of LiFePO4 with a 350W continuous inverter and a 600W surge, in a 13.7 lb (6.2 kg) case rated IPX4 for water resistance. That inverter is the main limit. It rules out high-draw appliances such as kettles, and Goal Zero caps total combined output at 550W. For outages, Goal Zero says it can run a full-size refrigerator for up to three and a half hours or keep a Wi-Fi router going.
Most of its value is on the DC side. Goal Zero lists a 100W USB-C PD port plus two 30W USB-C ports (166W combined), two 18W USB-A ports, a 162W 12V auxiliary port and a 135W 6mm port. Charging is quick for the size: 420W in AC fast-charge mode fills it in about 50 minutes, though the unit ships in a 140W low-speed default. The 8mm input takes up to 200W of solar. Cells are rated for 4,000 cycles to 80 percent, with a five-year warranty and Wi-Fi and Bluetooth, and Goal Zero says the app is required.
Its siblings share the same design. The Yeti 500 steps up to 499Wh and 500W, and the Yeti 700 to 677Wh and 600W, with the same 200W solar limit. The shared user guide lists automatic switching from grid to battery in under 20 ms, and warns that the switch is not instant, so sensitive loads may drop during the changeover.
Sources: goalzero.com, goalzero.com, cdn.shopify.com
Same brand
Other Goal Zero models
| Model | Capacity | AC output | Solar input | Weight |
|---|---|---|---|---|
| Yeti 500Larger | 499 Wh (+202 Wh) | 500 W | 200 W | 16.1 lb |
| Yeti 700Larger | 677 Wh (+380 Wh) | 600 W | 200 W | 20.3 lb |
| Yeti 1000 (2026)Larger | 998 Wh (+701 Wh) | 2,000 W | 900 W | 35.3 lb |
Alternatives
Other brands near 297 Wh
| Model | Capacity | AC output | Solar input | Weight |
|---|---|---|---|---|
| Anker SOLIX C300-3% capacity | 288 Wh (−9 Wh) | 300 W | 100 W | 9.1 lb |
| Jackery Explorer 300 v2-3% capacity | 288 Wh (−9 Wh) | 300 W | Not published | 8.16 lb |
| EcoFlow RIVER 3 Plus-4% capacity | 286 Wh (−11 Wh) | 600 W | 220 W | 10.4 lb |
FAQ
Yeti 300 questions
Answers use the same published specs and labelled assumptions as the calculator.
How long will the Yeti 300 last?
297 Wh stored, about 267 Wh of it usable at the typical estimate. At its full 350 W rating it empties in about 36–40 min.
Is the Yeti 300 enough for a CPAP night?
Not quite: less than one 8-hour night from a CPAP drawing 34 W with its heated humidifier and tube on (ResMed's measured figure).
What is the Yeti 300 solar input?
Up to 200 W of panels. A single 200 W panel needs about 0.4 sunny days; panels at the full 200 W need about 2 peak-sun hours. Panels are assumed to deliver 75% of their rating.
How heavy is the Goal Zero Yeti 300?
13.7 lb (6.2 kg). That is about 22 Wh per pound.
How many watts can the Yeti 300 power?
350 W continuous. Motor starts can briefly pull up to 600 W.