Head-to-head test
Anker 535 PowerHouse vs Goal Zero Yeti 500X
Nearly identical on capacity, solar, and USB-C, the Anker still costs $200 less and lasts six cycles to the Yeti's one, which leaves 3.8 pounds of weight savings as the entire case for paying more.
Full profiles: Anker 535 PowerHouse → · Goal Zero Yeti 500X →
Written by Wenny ZhengUpdated
Portable Power Tester, Station Arena Test Desk
$299.99 · direct from Anker
Last checked 1 day ago. Prices move — check before you buy.
$499.95 · direct from Goal Zero
Last checked 1 day ago. Prices move — check before you buy.
Spec deltas
The Anker 535 PowerHouse is the one to buy, and it isn't close. It costs about $200 less than the Goal Zero Yeti 500X and is rated for six times the charge cycles. The two are near-twins on the number that usually settles these things, 512 watt-hours against 497, which is exactly why everything else decides the call.
Price each box across all the energy it will ever store and release and the Anker comes to $0.20 a lifetime kilowatt-hour against the Yeti's $2.01, about a tenth the cost. Two things drive that. The Anker is cheaper up front, and its LFP cells are rated for 3,000 cyclesA1 where the Yeti's older Li-NMC pack is rated for 500B1. Goal Zero has already replaced this model with an LFP Yeti 500B4, which tells you what the company itself thinks of the chemistry it is still charging $500 for.
The Yeti earns exactly one point back. It is 3.8 pounds lighter and genuinely well builtB2, a real edge if you carry it often and a rounding error if it lives in a trunk. Set expectations too: these are small weekend batteries. Either one runs a CPAP overnight or keeps phones and a laptop goingB3, but neither has the watt-hours for a full camping weekend or a long blackout. Between two units this size the only question is which 500Wh box is the smarter buy, and that is the Anker going away.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
cost / lifetime kWh
Divide each price by the energy it buys and the Anker lands at $0.20 a kilowatt-hour to the Yeti's $2.01, about a tenth the cost. The $200 you save at the register is the smaller half of the gap. The larger half is that the Yeti's cells are spent after 500 cycles while the Anker's are barely broken in.
Anker 535: $300, 3,000 cycles, 512WhYeti 500X: $500, 500 cycles, 497Whcost per lifetime kilowatt-hour: $0.20 for the Anker, $2.01 for the Yeti
Why it mattersAnyone who will cycle the battery more than a handful of times a year pays roughly ten times as much per usable kilowatt-hour with the Yeti.
rated cycles
The 500X runs the older NMC chemistry that Goal Zero itself has already superseded with an LFP Yeti 500B4, so its premium price buys you the outgoing cells. In the years the Yeti asks to be retired once, the Anker keeps going through that same span five more times.
Anker: 3,000 cycles on LFPA1Yeti 500X: 500 cycles on Li-NMCB1, since replaced by an LFP Yeti 500B4weekend use: about 29 years for the Anker, about 5 for the Yeti
Why it mattersIf you keep gear longer than a couple of seasons, the Yeti is a replacement purchase with a delay timer and the Anker is the last one you buy.
continuous output
For anything that pulls 300 to 500W for more than a moment, a compact blender, a fridge compressor after its startup spike, the continuous rating is the number that decides, and there the Anker wins 500W to 300W. Its blank surge figure is not the same as no headroom; it means you are buying a steady, tested 500WA3 rather than a published peak.
Anker: 500W continuous, surge figure unpublishedYeti: 300W continuous, 600W surgea 400W load starts on the Yeti's surge but cannot hold on its 300W continuous
Why it mattersIf your load list has anything in the 300 to 500W band, the Anker covers it and the Yeti quits after the first second.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: The Anker stores nearly the same energy for $200 less and about a tenth the lifetime cost per kilowatt-hour ($0.20 against $2.01), the axis that settles this matchup.
cost / lifetime kWh
Within 15 watt-hours of each other on capacity, these two split completely on what that capacity is worth over its life. The Anker's 3,000-cycle pack will move roughly 1,536 kilowatt-hours before it fades; the Yeti's 500-cycle pack, about 249, call it six times more energy from the box that also costs $200 less. Read it as warranty math and the story repeats: $60 a year of coverage on the Anker against $250 on the Yeti. Whichever way you slice the ownership window, the cheaper unit is the one handing you more.
PowerScore Breakdown
Selected because: 500W of continuous output against 300W is the capability gap you feel on day one, and it tracks the 1,800-to-1,163 PowerScore spread.
overall power score
PowerScore rates the Anker 1,800 to the Yeti's 1,163, and the difference you will actually feel on day one is output. The Anker runs 500 watts continuous where the Yeti runs 300, the gap between a box that powers a 400W blender or a stack of tool chargers and one that stalls at 300W and lets its surge number do the talking. Independent testing had the Anker holding that full 500W without heating upA3, so the figure on the box is the figure at the outlet.
What the Specs Don't Tell You
Selected because: Warranty (5 years against 2) and cycle life (3,000 against 500) both favor the Anker, while the slow-solar flag turns out to hit both units equally at 120W.
rated cycles
Two of the three flags here point the same direction the price does: 5 years of warranty on the Anker against 2, and 3,000 rated cycles against 500, coverage and lifespan both landing on the cheaper unit. The third flag is the honest one, and it is not a Goal Zero win. The Anker's solar is genuinely slow, since 120 watts refilling 512Wh is four-plus hours of ideal sun and real panels give you lessA4. But the Yeti carries the identical 120W ceiling, so on solar these two crawl at exactly the same pace. On either box, the panel is a top-up and the wall is the refill.
Portability & Form Factor
Selected because: The Yeti's one measurable win, 12.9 pounds against 16.7, gets its fair hearing here.
weight
Here is the Yeti's one clean win: 12.9 pounds to the Anker's 16.7, a 3.8-pound edge, and reviewers rate it among the most compact, best-built units in the 500Wh classB2. Credit where it is due. But 3.8 pounds is the difference between two one-hand, grab-and-go boxes, not between a carry and a haul, and both ride happily in a car trunk or at a campsite. If you are picking a weekend battery by the pound, the Yeti wins the one category that costs it the war.
Strengths & trade-offs
Anker 535 PowerHouse
Strengths
- +Costs $200 less
- +Larger battery capacity
- +Higher AC output
- +Longer warranty
- +Rated for 3,000 charge cycles — much longer battery lifespan
Trade-offs
- –Lacks smartphone app control for remote monitoring.
Goal Zero Yeti 500X
Strengths
- +Lighter by 3.8 lb
Trade-offs
- –Substantially more expensive (+$200) than the 535 PowerHouse.
- –Lacks smartphone app control for remote monitoring.
- –Shorter-lived battery — rated for 500 charge cycles vs the 535 PowerHouse's 3,000, 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 · 2 nights · needs 2,100Wh
Weekend Camping
Two nights off-grid with essential comfort
Neither unit
Neither unit covers this scenario's 2,100Wh: the 535 PowerHouse comes up 1,665Wh short (about 21% 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
LOAD Phone Charger 15W×6h · LED Lights 40W×8h · Box Fan 75W×14h · CPAP Machine 40W×16h
SCN-02 · 8 hours · needs 1,645Wh
8-Hour Blackout
Keep the essentials running through a night without power
Neither unit
Neither unit covers this scenario's 1,645Wh: the 535 PowerHouse comes up 1,210Wh short (about 26% covered), the Yeti 500X 1,223Wh (26%). Treat this as partial cover — enough for the essentials in it, not the whole list.
Battery budget usedlower = more headroom
LOAD Fridge 150W×8h · Router + Modem 20W×8h · LED Lights (4 bulbs) 40W×6h · Phone Charger 15W×3h
SCN-03 · 8 hours · needs 320Wh
CPAP Overnight
Sleep therapy without interruption — the #1 medical use case
Either unit
A CPAP draws about 40W, so across an eight-hour night it needs roughly 320Wh, and both units clear that with better than 100Wh to spare, 115 on the Anker and 102 on the Yeti. Capacity decides nothing here. Neither company publishes a noise figure, so the fan is the one thing you cannot check on the spec sheet for either box. Decide on what you can measure: the Anker is $200 cheaper, the Yeti is 3.8 pounds lighter.
Battery budget usedlower = more headroom
LOAD CPAP Machine 40W×8h
SCN-04 · 8 hours · needs 910Wh
Remote Workday
Full work day off-grid without power anxiety
Neither unit
Neither unit covers this scenario's 910Wh: the 535 PowerHouse comes up 475Wh short (about 48% covered), the Yeti 500X 488Wh (47%). Treat this as partial cover — enough for the essentials in it, not the whole list.
Battery budget usedlower = more headroom
LOAD Laptop 60W×8h · External Monitor 30W×8h · Router + Modem 20W×8h · Phone Charger 15W×2h
SCN-05 · 4 hours · needs 670Wh
Tailgate Party
Game day power for the crew
Neither unit
The Yeti 500X can start the 400W peak but not hold it — 1,200W of surge gets it going, then the 300W continuous rating takes over, so capacity never gets a say. This is the wrong size of unit for the job rather than a close call. The 535 PowerHouse doesn't have the energy either — 435Wh usable against 670Wh, 235Wh short — so neither route works.
Battery budget usedlower = more headroom
LOAD Blender 400W×0.5h · LED TV (55") 80W×4h · Bluetooth Speaker 15W×4h · Phone Charger (×3) 45W×2h
SCN-06 · 24 hours · needs 4,685Wh
Van Life Daily
A full day of mobile living — the ultimate endurance test
Neither unit
Neither unit covers this scenario's 4,685Wh: the 535 PowerHouse comes up 4,250Wh 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
LOAD Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h
The Load Test
RUNTIME = (Wh × 0.85) ÷ 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 — both run this 205W load for roughly 2.1h. Pick on price, weight, or ports.
Modeled from the spec record — same math as the tables below. Methodology
Runtime by appliance
Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹
Essentials
The basics you need runningscale 0–29hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–5.8hHigh-Draw Appliances
These reveal the real limits¹ Runtime = (capacity × 0.85) ÷ 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 — see methodology.
Conclusion
August 30, 2026
Verdict: the 535 PowerHouse
Buy the Anker 535 PowerHouse. For $200 less than the Yeti 500X it gives you more continuous power (500W against 300W), six times the rated cycles (3,000 against 500A1B1), and a 5-year warranty against 2, so the cheaper box is also the more capable and far longer-lived one. The Yeti's answer is 3.8 pounds and a nicely built shellB2; if you will carry it daily that counts for something, and if you will not, it doesn't. Paying more for the older, shorter-lived chemistry is the wrong side of every trade here except weight.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of August 30, 2026. The links below open Anker's and Goal Zero's current prices.
$299.99 · direct from Anker
Last checked 1 day ago. Prices move — check before you buy.
or check the Yeti 500X price$499.95 list
Written by Wenny Zheng, Portable Power Tester · Station Arena Test Desk · Updated August 30, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): Tailgating.
Full specifications
ᵈ Derived: price ÷ rated capacity. See the data behind our comparisons →
Comparison ToolAdd more power stations, side by sideOpen Tool →How these numbers are produced
Numeric verification
Every figure on this page traces to our spec database or arithmetic on it — no estimated numbers.
Owner claims
Statements about owner experience are cited to published reviews — see Sources & Research Notes below.
Runtime model
Runtime = (rated capacity × 0.85 inverter efficiency) ÷ 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 →Class ranking (the star rating)
Each unit's star score is a category ranking, not customer reviews — 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 5★. Here, 535 PowerHouse rates 3.7/5 (21st percentile of 20 Compact-class units), and Yeti 500X rates 3.5/5 (14th percentile of 22 Personal-class units).
How the class ranking is computed →Test Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
Slow solar, but it cuts both ways
True, and worth heeding: at 120W, refilling about 500Wh takes north of four hours of ideal sun, and a real panel delivers less than its rating. But the Yeti runs the same 120W ceiling, so this is a shared trait rather than a reason to pick one over the other. On either box, treat solar as a top-up and plan to refill from a wall outlet.
Warranty: 5 Years vs 2
The 535 PowerHouse is covered for 5 years against the Yeti 500X's 2 years. An underrated factor if you're keeping this unit for years.
Battery Lifespan in Real Years
The 535 PowerHouse is rated for 3,000 cycles vs 500. In real life: at daily use, that's 8.2 vs 1.4 years. At weekend use (twice a week), it's 29 vs 5 years. After hitting the cycle limit, the battery doesn't die — it drops to ~80% of original capacity, which is still very usable.
Full record above — the Test Desk pick is the 535 PowerHouse.
Check 535 PowerHouse price →or check the Yeti 500X priceOwnership Analysis
What happens after you buy — 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
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
The 535 PowerHouse wins on both sticker price and long-term value. At $0.2/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
Delivers each lifetime kWh for $1.81 less — check the 535 PowerHouse price →
Brand trust
Anker
Ecosystem
7-8 SOLIX portable power stations across C-series (compact) and F-series (flagship), plus the X1 home energy system
Support
US-based support. Historically known for incredible no-hassle replacements, but recent reports describe AI-driven support agents giving generic responses and complex return logistics for heavy units (hazmat shipping). The Anker brand reputation is still strong, but SOLIX-specific support quality is trending down.
Community
Moderate — active Reddit (r/Anker, r/AnkerSOLIXCommunity) and growing. Benefits from Anker's massive consumer electronics brand awareness.
App experience
Rated 4.5/5 iOS (~1,100 ratings) · 4.3/5 Android
Unique strength
Anker's InfiniPower LFP is why a $300 unit carries a 3,000-cycle rating and a 5-year warranty, the per-watt-hour value the brand made its name on.
Worth knowing
Anker's SOLIX support has drifted from its old no-hassle-replacement reputation toward scripted, AI-driven responses, and returning a heavy unit means hazmat logistics. The hardware is strong; just lean on the safety net a little less than you might have a few years ago.
Goal Zero
Ecosystem
Focused — a compact current line (6th-gen Yeti and Yeti Pro series), the previous-gen X series now out of stock across every model on Goal Zero's own store (checked 2026-09-13: 200X, 500X, 1000X, 1500X, 3000X, 6000X, some listed only as open-box), so buying one new means finding retailer stock, Sherpa power banks for the under-100Wh tier, plus Alta coolers, Nomad/Ranger solar panels, and vehicle integration kits
Support
US-based company (Salt Lake City, owned by NRG Energy). Historically considered premium support, but 2025-2026 reports describe long wait times, unresponsive email communication, and tickets going unaddressed for weeks. The "premium support justifies premium pricing" argument is weakening.
Community
Small but loyal — strong following in overlanding and preparedness communities. Official community forums were recently shuttered, frustrating long-time users.
App experience
Rated 4.4/5 iOS (~1,200 ratings) but recent reviews skew negative — recurring connectivity issues, crashes, and stability problems.
Unique strength
Goal Zero pioneered portable power and still builds rugged, US-designed gear inside a real ecosystem of coolers, solar panels, and vehicle kits.
Worth knowing
Goal Zero recently closed its community forums, and support waits have stretched long enough that the premium-price-buys-premium-support argument does not hold the way it once did.
Analyst note
Both brands have slipped from their old support high-water mark, so neither badge is worth paying extra for on this pair. The premium here buys you Goal Zero's ecosystem and 3.8 fewer pounds, not a better or longer-lived battery.
Growth path
535 PowerHouse
FIXED CAPACITYFixed at 512Wh, with no expansion — 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.
Yeti 500X
FIXED CAPACITYFixed at 497Wh, with no expansion — 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.
Limited ports. You'll likely need a power strip or splitter.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Neither expands, and that's no knock on either — each is a complete unit at a fixed size. Buy the capacity that covers your needs now (the 535 PowerHouse gives you the larger ceiling); you can't add to either later.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
Anker 535 PowerHouse
Independent testing has the 535 PowerHouse holding a real 89% round-trip efficiency and staying cool while it delivers its full 500WA3; from the wall it reaches 80% in about 2.5 hours, though solar realistically lands at 60 to 75W despite the 120W ratingA4. The LFP pack is rated for 3,000-plus cycles and a 10-year lifespan behind a 5-year warrantyA1, and the chassis is compact for 512Wh with a full port set, four AC, three USB-A, USB-C, and a car outletA2.
Most of what exists is careful reviewer bench work rather than years-deep owner diariesA0, but it is consistent: durable, efficient, and honest about its one weakness, slow solarA4.
“512Wh capacity with 500W output on LiFePO4 cells rated for 3,000+ cycles and a 10-year lifespan, backed by a 5-year warranty.”
Sources
ankersolix.com · trustedreviews.com · macrumors.com · batteryessence.com
Goal Zero Yeti 500X
Owners report the 500X quietly doing the small-device job, two laptops, a Switch, an iPad, and phones at once with no dramaB3, and reviewers single it out as one of the most compact, best-built units in the 500Wh class at 12.9 poundsB2.
The reservation is the battery itself: an older Li-NMC pack rated for 500 cyclesB1, a chemistry Goal Zero has already moved past with the LFP Yeti 500B4. The verdict that keeps recurring is a good little unit built on dated cellsB2B4.
“Weighs 12.9 lbs and is one of the most compact 505Wh power stations, with praised portability and build quality.”
Sources
nomadwatts.com · bestbuy.com · yuenx.com · survival-kompass.de · 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
- Durable LFP (3,000+ cycles, 5-yr warranty), efficient, and compact for weekend camping; slow solar input is the caveat. [535 PowerHouse · 2 entries]
- Compact, well-built, and reliable for small devices, but held back by 500-cycle NMC chemistry vs newer LFP. [Yeti 500X · 3 entries]
- A1
“512Wh capacity with 500W output on LiFePO4 cells rated for 3,000+ cycles and a 10-year lifespan, backed by a 5-year warranty.”
ankersolix.com / trustedreviews.com — 535 PowerHouse review · 2026 · [positive]
- A2
“Weighs 16.5 lbs and is compact for a 512Wh unit, with 4 AC ports, 3 USB-A, a USB-C, and a car outlet.”
macrumors.com / batteryessence.com — 535 PowerHouse review · 2026 · [positive]
- A3
“Demonstrated 89% round-trip efficiency and stayed stable and cool while delivering its full 500W AC output.”
batteryessence.com — 535 PowerHouse review · 2026 · [positive]
- A4
“AC charging to 80% takes about 2.5 hours; solar input caps at 120W (realistically 60-75W), so panel charging is slow.”
batteryessence.com — 535 PowerHouse review · 2026 · [mixed]
- B1
“A 505Wh Li-ion NMC battery rated for 500 charge cycles to 80% capacity, with a 300W continuous inverter (350W surge, 2,000W peak).”
nomadwatts.com / bestbuy.com — Yeti 500X review · 2026 · [negative]
- B2
“Weighs 12.9 lbs and is one of the most compact 505Wh power stations, with praised portability and build quality.”
yuenx.com / survival-kompass.de — Yeti 500X review · 2026 · [positive]
- B3
“Owners report reliably charging multiple devices — two laptops, a Nintendo Switch, an iPad, and multiple phones — without problems.”
bestbuy.com owner reviews — Yeti 500X · 2026 · [positive]
- B4
“An older NMC design; a newer LFP Yeti 500 has since replaced it with a far higher cycle rating.”
portablepowernerd.com — Yeti 500X/500 review · 2026 · [mixed]
Research compiled August 30, 2026.
Who Should Buy Which
Buy the 535 PowerHouse if you…
- →The weekend-and-emergency buyer who wants to still be using this in a decade: 3,000 cycles and 5 years of warrantyA1 on the cheaper of the two boxes.
- →Anyone whose load list touches 300 to 500W, a compact blender, tool chargers, a 400W mini-fridge's running draw, where the Anker's 500W continuous clears what the Yeti's 300W stalls onA3.
- →The value-minded buyer who wants the most watt-hours and the most life per dollar: $300 for 512Wh that works out to pennies per lifetime kilowatt-hour.
Buy the Yeti 500X if you…
- →The person who will actually carry it often, frequent load-in and load-out, where 12.9 pounds against 16.7 earns its keep, for a light, well-built unit that reliably tops up phones, a laptop, and a SwitchB2B3.
- →The committed Goal Zero owner who wants this to click into an existing Yeti-Ready setup of solar panels, coolers, and vehicle kits.
If neither fits
If your real draw is a full camping weekend (about 2,100Wh), an all-night blackout (1,645Wh), or a work-from-anywhere day (910Wh), neither 500Wh box covers it and you will be nursing a dead battery by afternoon. Size up to a 1,000Wh-plus station instead. And if you have settled on Goal Zero purely for the badge, price the newer LFP Yeti 500 before this older oneB4.
The Bottom Line
It comes down to one comparison: across everything each battery will ever store and release, the Anker delivers its energy for about a tenth of what the Yeti's costs. It gets there twice over, cheaper to buy and rated for six times the cycles, and nothing on the Yeti's side of the ledger closes a gap that size. Lighter is nice. A tenfold edge in lifetime value is the ballgame.
Buy the Yeti 500X only if 3.8 pounds genuinely changes your day, or you are already deep in Goal Zero's ecosystem, and even then price the newer LFP Yeti 500 firstB4. For everyone else, the Anker 535 PowerHouse is the cheaper box today and the one still running when the Yeti has been recycled. Get the Anker.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the Anker 535 PowerHouse better than the Goal Zero Yeti 500X?
Yes, on nearly every axis that matters. It is about $200 cheaper, puts out 500W continuous to the Yeti's 300W, and its LFP battery is rated for 3,000 charge cycles against 500, so it is both more capable now and far longer-lived. The Yeti's only edge is weight: 12.9 pounds versus 16.7.
Why is the Yeti 500X more expensive if it is the weaker unit?
You are paying for Goal Zero's brand and a lighter, well-built shell, not for better components. The 500X uses an older Li-NMC battery rated for 500 cycles, which Goal Zero has already replaced with an LFP Yeti 500. At $500, the premium buys heritage and 3.8 fewer pounds, not longevity.
Can either one run a refrigerator or a microwave?
Neither is a good fridge or microwave unit. The Anker's 500W continuous can handle a small fridge's running draw, but its roughly 435Wh of usable energy will not keep one cold through a full day; the Yeti can kick a 400W load to life on its 600W surge but cannot hold it on 300W continuous. A microwave's startup surge is beyond both. For real appliance duty, step up to a 1,000Wh-plus station.
How long will the Anker 535 last compared to the Yeti 500X?
The Anker is rated for 3,000 charge cycles, the Yeti for 500. In practice that is about 8.2 years versus 1.4 at daily use, or roughly 29 years versus 5 at a twice-a-week weekend pace. Neither battery dies at the cycle limit, it settles to about 80% of original capacity, but the Anker gets there six times slower.
Should I buy the Yeti 500X or the newer Goal Zero Yeti 500?
If you want a Goal Zero unit, look hard at the newer Yeti 500 first. The 500X uses older Li-NMC cells rated for 500 cycles, and Goal Zero replaced it with an LFP Yeti 500 that carries a much higher cycle rating. Paying $500 for the outgoing chemistry when a longer-lived version exists is tough to justify, and the Anker 535 undercuts both on price.
Where to buy
Anker 535 PowerHousePick
$299.99
$299.99 · direct from Anker
Last checked 1 day ago. Prices move — check before you buy.
Goal Zero Yeti 500X
$499.95
$499.95 · direct from Goal Zero
Last checked 1 day ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.