Head-to-head test
Goal Zero Yeti 500 vs Goal Zero Yeti 500X
Goal Zero Yeti 500 vs Goal Zero Yeti 500X: buy the Yeti 500, which is rated for 4,000 cycles to the 500X's 500 and adds a UPS mode, unless you'll carry it on foot and the 500X's lighter 12.9 lbs matters more to you than battery life.
Full profiles: Goal Zero Yeti 500 β Β· Goal Zero Yeti 500X β
Written by Wenny ZhengUpdated
Portable Power Tester, Station Arena Test Desk
Spec deltas
The names have it backwards. The Yeti 500X is the older unit, built on Li-NMC, a lithium chemistry that's lighter but wears out sooner. Goal Zero has since replaced it with the plain Yeti 500, which uses LiFePO4B4. Both hold about half a kilowatt-hour, and both sell for the same price.
Then come the cycle ratings. The Yeti 500 is rated for 4,000 full charges and the 500X for 500. If I ran a CPAP off one every night, the 500X would reach its rating in under a year and a half. The Yeti 500 would take about 11 years.
The 500X does win the carry. It weighs 12.9 lbs to the Yeti 500's 16.1. That's its best argument, and on a long walk to a campsite you'd feel it.
What the Numbers Reveal
Each conclusion stated first β the numbers behind it on one line, the full analysis below.
rated cycles
That's eight times the energy for the same money. Cost per lifetime kWh comes out at $0.25 for the Yeti 500 against $2.01 for the 500X.
Yeti 500: 4,000 cycles across 499Wh, about 1,996 kWh over its rated lifeYeti 500X: 500 cycles across 497Wh, about 249 kWh over its rated lifeboth list at the same price
Why it mattersThe price tags match. Very little else does.
Goal Zero rates the handoff at 20ms or faster. That's fine for a router and most electronics, and the fussiest desktop power supplies sit right at that line. The 500X has no such mode, so anything plugged into it rides an outage only as far as your reaction time.
Yeti 500: UPS mode rated at 20ms or fasterYeti 500X: no UPS mode listedYeti 500 has app control; the 500X has none
Why it mattersIf it's going to live behind a modem, only one of these is a candidate.
continuous output
Surge only gets a load going. The 500X can start the 400W tailgate blender and then can't hold it, because 300W is its continuous limit. The Yeti 500 runs it on a 500W inverter.
Yeti 500: 500W continuous, 1,000W surgeYeti 500X: 300W continuous, 1,200W surgethe Tailgate Party scenario's peak is a 400W blender
Why it mattersJudge these two by the continuous rating. Anything between 300W and 500W runs on the Yeti 500 only.
solar input
At 120W the 500X needs over four hours of good sun to refill. The Yeti 500 at 200W needs about two and a half.
Yeti 500X: 12.9 lbs, 120W solar inputYeti 500: 16.1 lbs, 200W solar inputneither expands
Why it mattersBackpackers and paddlers, the buyers the 3.2 lbs is aimed at, are the ones who'd wait longest at the panel.
The specific dimensions that decide these two units β everything else is a tie.
Lifetime Value
Selected because: Same price and capacity, with eight times the rated lifetime energy on one side.
cost / lifetime kWh
Both hold about 499Wh and sell for the same price, so the gap in cost per lifetime kWh, $0.25 against $2.01, comes almost entirely from the chemistry. 4,000 cycles on the Yeti 500. 500 on the 500X.
Most people won't collect all of it. At a charge every weekend, the Yeti 500's rating runs for decades. The number that bites is on the other side. At that same pace the 500X reaches its rating in under five years, well past its two-year warranty. Neither battery dies at the rating. It drops to about 80% of its original capacity and keeps working.
This is a rare pair where I'd call it outright. Same money, same capacity, eight times the rated life. I'd buy the Yeti 500.
Your Life, Your Pick
Selected because: Both are half-kilowatt-hour boxes, so the useful question is which jobs either can do at all.
Six scenarios run here, and both units clear only one. A CPAP night, about 320Wh, uses about three quarters of either battery. The other five ask for more than half a kilowatt-hour can give.
The CPAP row is where the cycle gap stops being abstract. Three quarters of the battery every night is close to a full cycle every night. That's 500 nights on one and 4,000 on the other. Tailgate Party is the other one worth a look. The 500X can start the blender and can't keep it running. The Yeti 500 runs it, then runs out of energy before the list is done.
What the Specs Don't Tell You
Selected because: UPS, app control and warranty all break the same way and read best together.
rated cycles
Only the Yeti 500 lists a UPS mode, rated at 20ms or faster. The 500X lists none. What the X series offers is pass-through charging, which lets it power a load while it charges. That's useful, and it's a different feature. Nothing hands your gear to the battery when the grid drops.
The 500X also has no app, so checking the battery means walking over to it. The Yeti 500 shows charge and draw on your phone and sends low-battery alerts.
Warranty is five years on the Yeti 500 and two on the 500X. Charged daily, the 500X reaches its cycle rating in about 1.4 years, inside its own warranty.
Portability & Form Factor
Selected because: Weight is the main case for the Yeti 500X, so it's worth seeing what the 3.2 lbs costs.
weight
16.1 lbs against 12.9. Both are one-hand lifts off a tailgate. I'd feel the difference on a mile-long walk into a campsite and not on the walk from the car.
The lighter box also refills more slowly from the sun, at 120W against 200W. The further you carry it, the more of the day it spends tied to a panel. Take the 500X if it really rides on your back or in a boat, and plan the day around the slower refill.
Strengths & trade-offs
Goal Zero Yeti 500
Strengths
- +Larger battery capacity
- +Higher AC output
- +Longer warranty
- +Faster solar charging
- +Rated for 4,000 charge cycles β much longer battery lifespan
Trade-offs
- βNo major technical downsides compared to rival.
Goal Zero Yeti 500X
Strengths
- +Lighter by 3.2 lb
Trade-offs
- βLacks smartphone app control for remote monitoring.
- βShorter-lived battery β rated for 500 charge cycles vs the Yeti 500's 4,000, so it wears out sooner.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on six real-world scenarios. Here's which unit survives your actual life.
SCN-01 Β· 2 nights Β· needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
Neither unit
Neither unit covers this scenario's 2,100Wh: the Yeti 500 comes up 1,676Wh short (about 20% covered), the Yeti 500X 1,678Wh (20%). This is well outside what either unit is for; the right answer here is a larger station, not a choice between these two.
Battery budget usedlower = more headroom
LOADΒ Β Phone Charger 15WΓ6h Β· LED Lights 40WΓ8h Β· Box Fan 75WΓ14h Β· CPAP Machine 40WΓ16h
SCN-02 Β· 8 hours Β· needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
Neither unit
The load wants 1,645Wh, close to four times the usable energy in either unit, so you'd pick a few things to keep running. The Yeti 500 does that smaller job better because it lists a UPS mode at 20ms or faster. The modem and the laptop keep going when the grid leaves.
Battery budget usedlower = more headroom
LOADΒ Β Fridge 150WΓ8h Β· Router + Modem 20WΓ8h Β· LED Lights (4 bulbs) 40WΓ6h Β· Phone Charger 15WΓ3h
SCN-03 Β· 8 hours Β· needs 320Wh
CPAP Overnight
Sleep therapy without interruption β the #1 medical use case
Either unit
Both clear it with about 100Wh to spare. A CPAP night uses about three quarters of either battery, which is close to a full cycle every night. One is rated for 4,000 of those and the other for 500.
Battery budget usedlower = more headroom
LOADΒ Β CPAP Machine 40WΓ8h
SCN-04 Β· 8 hours Β· needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
Neither unit
Neither unit covers this scenario's 910Wh: the Yeti 500 comes up 486Wh short (about 47% covered), the Yeti 500X 488Wh (47%). Treat this as partial cover β enough for the essentials in it, not the whole list.
Battery budget usedlower = more headroom
LOADΒ Β Laptop 60WΓ8h Β· External Monitor 30WΓ8h Β· Router + Modem 20WΓ8h Β· Phone Charger 15WΓ2h
SCN-05 Β· 4 hours Β· needs 670Wh
Tailgate Party
Game day power for the crew
Neither unit
Neither gets through on one charge, since the load wants 670Wh. The 500X's 1,200W surge can start the 400W blender, but its 300W continuous rating can't keep it running. The Yeti 500 runs the blender on its 500W inverter and comes up about 246Wh short of the full list.
Battery budget usedlower = more headroom
LOADΒ Β Blender 400WΓ0.5h Β· LED TV (55") 80WΓ4h Β· Bluetooth Speaker 15WΓ4h Β· Phone Charger (Γ3) 45WΓ2h
SCN-06 Β· 24 hours Β· needs 4,685Wh
Van Life Daily
A full day of mobile living β the ultimate endurance test
Neither unit
Neither unit covers this scenario's 4,685Wh: the Yeti 500 comes up 4,261Wh short (about 9% covered), the Yeti 500X 4,263Wh (9%). This is well outside what either unit is for; the right answer here is a larger station, not a choice between these two.
Battery budget usedlower = more headroom
LOADΒ Β Mini-Fridge 150WΓ24h Β· Laptop 60WΓ4h Β· Phone Charger 15WΓ3h Β· LED Lights 40WΓ5h Β· Fan 75WΓ8h
The Load Test
RUNTIME = (Wh Γ 0.85) Γ· LOAD
None of the scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.
Essentials
Comfort & Convenience
High-Draw Appliances
Test duration
8h
Continuous draw
205W
Projected runtime
Dead heat β both run this 205W load for roughly 2.1h. Pick on price, weight, or ports.
Planning for more than this? Describe your whole setup and get it sizedΒ β
Modeled from the spec record β same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.ΒΉ
Essentials
The basics you need runningscale 0β28.3hComfort & Convenience
Makes off-grid life actually enjoyablescale 0β5.7hHigh-Draw Appliances
These reveal the real limitsΒΉ Runtime = (capacity Γ 0.85) Γ· appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads β see methodology.
Conclusion
October 25, 2026
Verdict: the Yeti 500
Take the Yeti 500. Both hold about 499Wh at the same price, and the Yeti 500 is rated for 4,000 cycles against 500. That's about 1,996 kWh over its life against 249, or $0.25 per lifetime kWh against $2.01. It also runs 500W continuous to 300W, takes 200W of solar to 120W, carries five years of warranty to two, and is the only one with a UPS mode and an app. The 500X weighs 12.9 lbs against 16.1, and its surge rating is higher. If you carry it on foot, the weight is a real argument. It's the only big one on its side.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of October 25, 2026. The links below open Goal Zero's current price.
$499.95 Β· direct from Goal Zero
Last checked 28 days ago. Prices move β check before you buy.
or check the Yeti 500X price$499.95 list
Written by Wenny Zheng, Portable Power Tester Β· Station Arena Test Desk Β· Updated October 25, 2026
Black Friday Β· 26 days out
Prices to beat:Yeti 500 $500Yeti 500X $500
We have never seen either discounted, so any real cut would be a first.
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): UPS, CPAP, Solar Generator.
Full specifications
α΅ Derived: price Γ· rated capacity. See the data behind our comparisons β
Comparison ToolAdd more power stations, side by sideOpen Tool βHow these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it β no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews β see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity Γ 0.85 inverter efficiency) Γ· device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.
Power Score
Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.
See the full weight table and data sourcing on our methodology page βClass ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews β no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5β . Here, Yeti 500 rates 4.5/5 (71st percentile of 25 Personal-class units), and Yeti 500X rates 3.6/5 (17th percentile of 25 Personal-class units).
How the class ranking is computed βTest Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
Yeti 500X: No App Control
Without app control, you have to physically walk to the Yeti 500X to check battery level, adjust settings, or monitor power draw. The Yeti 500 lets you do all that from your phone, including getting low-battery alerts.
Surge Power: Inverter Quality Indicator
The Yeti 500X has a 4Γ surge-to-continuous ratio vs the Yeti 500's 2Γ, and the higher absolute ceiling with it β 1,200W against 1,000W. At 4Γ it clears the 2Γ rule of thumb for absorbing motor startups β fridges, AC compressors and power tools briefly draw 2-3Γ their rated wattage. What decides whether a given motor starts is the ceiling, not the ratio: the Yeti 500 still surges to 1,000W, so check the startup draw of the heaviest thing you plan to run against that figure rather than assuming it trips.
Only the Yeti 500 Lists a UPS Mode
The Yeti 500 hands your gear to battery in 20ms or less when wall power drops. That's fine for a router and most electronics, and the fussiest desktop power supplies sit right at that line. The Yeti 500X lists no UPS mode. Its pass-through charging lets it run a load while it charges, but nothing switches over when the grid quits.
Five Years Against Two
The Yeti 500 carries five years of warranty and the 500X two. Charged daily, the 500X reaches its 500-cycle rating in about 1.4 years, while it's still under warranty.
Eight Times the Cycles. Who Collects?
4,000 cycles against 500. Charged every weekend, the Yeti 500's rating runs for decades. At the same pace the 500X reaches its rating in under five years, past its two-year warranty. Neither battery stops at the rating. It drops to about 80% of its original capacity and keeps working.
Full record above β the Test Desk pick is the Yeti 500.
Check Yeti 500 price βor check the Yeti 500X priceOwnership Analysis
What happens after you buy β true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
β warranty ends Β· Reaching the cycle rating means ~80% capacity remains β degraded, not dead.
Analyst note
The Yeti 500 wins on both sticker price and long-term value. At $0.25/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
Delivers each lifetime kWh for $1.76 less β check the Yeti 500 price β
Growth path
Yeti 500
FIXED CAPACITYFixed at 499Wh, with no expansion β so size it for your needs up front rather than planning to add capacity later.
Accepts up to 200W of solar. Limited to a single portable panel.
Adequate ports for most setups, but heavy users may want a power strip.
Yeti 500X
FIXED CAPACITYFixed at 497Wh, with no expansion β so size it for your needs up front rather than planning to add capacity later.
Accepts up to 120W of solar. Limited to a single portable panel.
Adequate ports for most setups, but heavy users may want a power strip.
Realistic full solar rechargeat 70% of rated panel output β see methodology
Analyst note
Neither expands, and that's no knock on either β each is a complete unit at a fixed size. Buy the capacity that covers your needs now (the Yeti 500 gives you the larger ceiling); you can't add to either later.
What Owners Report
Patterns from published owner reports and long-term reviews β every claim cited to its source below.
Goal Zero Yeti 500
Long-term data on the Yeti 500 is thin, which fits the newer unit. The closest thing to an endurance report is a 2026 reviewer who ran it through more than 180 charge cycles with little degradationA4. That sits well with Goal Zero's 4,000-cycle rating, which it describes as over ten years of daily use to 80% capacity at 75Β°FA1. Still, 180 cycles is a small slice of 4,000.
Goal Zero's own pitch leans on outages, with a full-size fridge plugged straight in for up to six hoursA2. That's the maker's claim, and we have no field result behind it. Our research notes that some listings mix the two models up, so the figures here are the LFP Yeti 500'sA0.
βThe Yeti 500's LiFePO4 battery is rated for 4,000+ cycles, meaning daily use for over 10 years (to 80% capacity at 75F).β
Sources
goalzero.com Β· rei.com Β· propaneva.com Β· portablepowernerd.com
Goal Zero Yeti 500X
The 500X's reputation is compactness. Reviewers call it one of the most compact stations in its class, with build quality to matchB2. Owners report running two laptops, a Nintendo Switch, an iPad and several phones from it without troubleB3. That's the job it was built for.
The limit is how long it lasts. Its Li-NMC cells are rated for 500 cycles to 80% capacityB1, which is why Goal Zero replaced it with the LFP Yeti 500B4. One caution. Some review listings give the 500X different capacity and surge figures from our catalogue recordB1B2, so this page uses the record's figures.
βWeighs 12.9 lbs and is one of the most compact 505Wh power stations, with praised portability and build quality.β
Sources
nomadwatts.com Β· bestbuy.com Β· yuenx.com Β· survival-kompass.de Β· portablepowernerd.com
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- High 4,000+ cycle LFP rating and outage-backup capability (including running a fridge for hours) are the standout points. [Yeti 500 Β· 2 entries]
- Compact, well-built, and reliable for small devices, but held back by 500-cycle NMC chemistry vs newer LFP. [Yeti 500X Β· 3 entries]
- A1
βThe Yeti 500's LiFePO4 battery is rated for 4,000+ cycles, meaning daily use for over 10 years (to 80% capacity at 75F).β
goalzero.com / rei.com β Yeti 500 LFP Β· 2026 Β· [positive]
- A2
βActs as a backup power supply when the grid drops β you can plug a full-size refrigerator directly in for up to six hours of runtime to prevent food waste.β
goalzero.com β Yeti 500 backup Β· 2026 Β· [positive]
- A3
βWeighs about 16 lbs, upgraded to LiFePO4 battery technology from the older NMC-based Yeti 500X.β
goalzero.com / propaneva.com β Yeti 500 review Β· 2026 Β· [mixed]
- A4
βOne 2026 reviewer completed 180+ charge/discharge cycles with minimal observed degradation.β
portablepowernerd.com β Yeti 500 long-term review Β· 2026 Β· [positive]
- B1
βA 505Wh Li-ion NMC battery rated for 500 charge cycles to 80% capacity, with a 300W continuous inverter (350W surge, 2,000W peak).β
nomadwatts.com / bestbuy.com β Yeti 500X review Β· 2026 Β· [negative]
- B2
βWeighs 12.9 lbs and is one of the most compact 505Wh power stations, with praised portability and build quality.β
yuenx.com / survival-kompass.de β Yeti 500X review Β· 2026 Β· [positive]
- B3
βOwners report reliably charging multiple devices β two laptops, a Nintendo Switch, an iPad, and multiple phones β without problems.β
bestbuy.com owner reviews β Yeti 500X Β· 2026 Β· [positive]
- B4
βAn older NMC design; a newer LFP Yeti 500 has since replaced it with a far higher cycle rating.β
portablepowernerd.com β Yeti 500X/500 review Β· 2026 Β· [mixed]
Research compiled October 25, 2026.
Who Should Buy Which
Buy the Yeti 500 if youβ¦
- βYou want a small backup behind the desk or the modem. Only the Yeti 500 lists a UPS mode, rated at 20ms or faster.
- βYou run medical gear nightly. A CPAP night uses about three quarters of the battery, so it's close to a cycle a night. 4,000 of those is about 11 years. 500 is under a year and a half.
- βYou want to buy once. Five years of warranty against two, an app that shows charge and draw, and a 500W inverter for the in-between loads.
Buy the Yeti 500X if youβ¦
- βYou'll actually carry it a distance on foot, and the load is phones, a tablet and a laptop. Owners report exactly that kind of use going smoothlyB3, and 12.9 lbs is easier to haul.
- βYou find one steeply discounted and plan to use it a dozen times a year. At full price it's the same money as a unit with eight times the lifetime energy.
If neither fits
If the plan is a fridge through a blackout or a van you live in, skip both. The blackout load wants 1,645Wh and van life 4,685Wh, several times what either holds. Look at the 1,000Wh-and-up class, and at one with an expansion port, since neither of these has one.
The Bottom Line
Take the Yeti 500. Same price, same half kilowatt-hour, and it's rated to deliver about 1,996 kWh over its life against 249. It adds a UPS mode, an app, a 500W inverter and five years of warranty.
Take the 500X only if it rides on your back or in a boat and the load is small. Even then, it takes over four hours of good sun to refill against about two and a half for the Yeti 500. Whichever you buy, size your plans to 499Wh. That part they share.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the Goal Zero Yeti 500 the same as the Yeti 500X?
No. The 500X is the older Li-NMC model rated for 500 cycles with a 300W inverter. The Yeti 500 is the LiFePO4 replacement rated for 4,000 cycles with a 500W inverter. They share a price and about half a kilowatt-hour of capacity.
Does the Yeti 500X have a UPS mode?
No. The Yeti 500X lists no UPS mode. The X series offers pass-through charging, which lets it power a load while it charges but does not switch over when the grid drops. The Yeti 500 lists a UPS mode rated at 20ms or faster.
Can either one run a CPAP all night?
Yes, both. A CPAP night is about 320Wh, roughly three quarters of the usable energy in either unit. Used nightly, the 500X's 500-cycle rating works out to about 1.4 years against about 11 years for the Yeti 500.
Will either one get me through an 8-hour blackout?
Not a full blackout load. The 8-hour scenario needs 1,645Wh, close to four times the usable energy in either unit, so you would choose a few things to keep running. Goal Zero says the Yeti 500 can run a full-size refrigerator for up to six hours; that is the manufacturer's figure. Only the Yeti 500 lists a UPS mode for switching over automatically.
Is the Yeti 500X worth buying at the same price?
For most buyers, no. The Yeti 500 beats it on cycle life, continuous output, solar input, USB-C speed, warranty, app control and UPS. The 500X has a higher surge rating, 1,200W against 1,000W, and weighs 12.9 lbs against 16.1. Unless you carry it on foot, the weight rarely matters.
Where to buy
Goal Zero Yeti 500Pick
$499.95
$499.95 Β· direct from Goal Zero
Last checked 28 days ago. Prices move β check before you buy.
Goal Zero Yeti 500X
$499.95
$499.95 Β· direct from Goal Zero
Last checked 28 days ago. Prices move β check before you buy.
Prices may vary by retailer and are subject to change.