Head-to-head test
Anker 535 PowerHouse vs Goal Zero Yeti 300
The cheaper unit here is also the bigger one, so the Yeti 300 has to win on weight, ruggedness, and recharge speed to justify costing $50 more for a smaller battery — and for most buyers, it can't.
Full profiles: Anker 535 PowerHouse → · Goal Zero Yeti 300 →
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.
$349.95 · direct from Goal Zero
Last checked 1 day ago. Prices move — check before you buy.
Spec deltas
The Anker 535 PowerHouse is the bigger battery and the cheaper one: 512Wh for $300 against the Yeti 300's 297Wh for $350. Start there, because it inverts the usual trade-off — normally you pay more for more energy, and here the unit with more energy costs less. Everything the Yeti does well has to earn back the fifty dollars and the capacity it starts behind on.
And the Yeti does several things well. It is three pounds lighter, IP54-rated for dust and rainB2, recharges far faster than the AnkerB2, takes 200W of solar to the Anker's 120W, and adds a UPS mode, app control, and 100W USB-C the Anker skips. This is the newer, more portable, better-connected unit, and none of that is in dispute.
What is in dispute is whether any of it beats stored energy and price, and for most buyers it does not. You would be paying more to get a smaller battery, and the Yeti's features — real as they are — are conveniences layered on less capacity. Take the Anker unless you know, specifically, that light-and-rugged-and-fast matters to you more than watt-hours.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
Run it to usable energy and the gap widens: after the flat 85% derate the Anker gives 435 watt-hours to the Yeti's 252. So the $50 you save also buys 183 more usable watt-hours. On stored energy the Yeti loses on both axes at once — smaller and pricier.
Anker 535: 512Wh at $300Yeti 300: 297Wh at $350cost per watt-hour: $0.59 Anker vs $1.18 Yeti
Why it mattersIf the question is most power for the money, it is already answered: the Anker.
rated cycles
So the longer-rated unit delivers about 350 fewer kilowatt-hours across its life, and charges more for each one — $0.29 per lifetime kWh against $0.20. The bigger cycle count is counting smaller scoops.
Yeti rated 4,000 cycles, Anker 3,000cycle size: 297Wh Yeti vs 512Wh Ankerlifetime energy: 1,536 kWh Anker vs 1,188 kWh Yeti
Why it mattersDo not let 4,000 cycles sell you the Yeti; on lifetime energy per dollar it is behind, not ahead.
solar input
Add three pounds saved and an IP54 shell the Anker does not haveB2, and the Yeti resolves into one specific tool: the light, weatherproof unit you can drain at lunch and have full by mid-afternoon. That is worth real money — to the buyer who moves and recharges constantly, not the one who fills up once from a wall outlet and leaves it.
Yeti recharges 0-100% in about 50 minutesB2; Anker reaches 80% in about 2.5 hoursA4solar input: 200W Yeti vs 120W AnkerYeti 13.7 lbs and IP54B2; Anker 16.7 lbs, no IP rating
Why it mattersBackpackers, overlanders, and van-lifers who recharge on the move should weigh the Yeti seriously despite the price; homebodies should not.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: Every cost measure — purchase price, price per watt-hour, lifetime energy, and warranty-year cost — favors the Anker, so it settles the matchup fastest.
cost / lifetime kWh
Every cost measure lands on the Anker, which almost never happens in these matchups. It is cheaper to buy, cheaper per watt-hour to fill, cheaper per lifetime kilowatt-hour, and cheaper per year of warranty — $60 a year against $70. The Yeti's one entry in this column is its 4,000-cycle rating, and that is the trap: cycles read as longevity, but each one only moves 297Wh, so the smaller pack never overtakes the bigger one on total energy delivered. If you are deciding on money, the deciding is done.
Runtime: Will It Power Your Gear?
Selected because: Usable capacity is 435Wh on the Anker against 252Wh on the Yeti, which decides what each can actually finish.
continuous output
Rated capacity is 512Wh and 297Wh, but what matters is what survives the flat 85% usable derate — and the Anker keeps its lead there too. In practice it runs a CPAP through the night with margin while the Yeti fades short, and it carries more inverter headroom: 500W continuous against 350W. The Yeti's 350W ceiling is a real wall. Near its limit it strains, and one reviewer's coffee maker tripped a shutdown after about two minutesB3. For phones, laptops, lights, and a CPAP, both are competent; the moment a load looks like a kettle or a hair dryer, both are the wrong size — the Anker just reaches that wall later.
What the Specs Don't Tell You
Selected because: The Yeti answers with a UPS mode, 100W USB-C, 200W solar, and app control — the features that justify its premium.
rated cycles
The feature spread almost all runs the Yeti's way. It lists a UPS mode the Anker has no answer to — it can sit between the wall and a router and cover a flicker the Anker would pass straight through. It charges over USB-C at 100W to the Anker's 60W, enough to run most laptops at full speed from the port alone. It pulls 200W of solar to the Anker's 120W, and adds app monitoring so you check the battery from your phone instead of walking over to it. None of these is capacity, and none is price. They are the reasons to pay more for the Yeti, not reasons it holds more energy or costs less, so weigh them for what they are: if you want a small always-on backup for network gear, the UPS alone might decide it; if you don't, they are extras stacked on the pricier, smaller box.
Portability & Form Factor
Selected because: At 13.7 pounds and IP54-rated, the Yeti wins weight and weatherproofing — its clearest column.
weight
This is where the Yeti earns its price. At 13.7 pounds it is three lighter than the Anker's 16.7, and it claims an IP54 dust-and-water rating the Anker does notB2 — rubberized corners, a real handle, the build of something meant to leave the garage. If your unit rides in a truck bed or a canoe and might get rained on, that beats spare watt-hours. But three pounds is the space between two one-handed carries, not between portable and not, and the weight you save comes with a smaller battery. Ruggedness is the Yeti's to claim here; weight alone will not carry the decision.
Strengths & trade-offs
Anker 535 PowerHouse
Strengths
- +Costs $50 less
- +Larger battery capacity
- +Higher AC output
Trade-offs
- –Lacks smartphone app control for remote monitoring.
- –Shorter-lived battery — rated for 3,000 charge cycles vs the Yeti 300's 4,000, so it wears out sooner.
Goal Zero Yeti 300
Strengths
- +Lighter by 3 lb
- +Faster solar charging
- +Rated for 4,000 charge cycles — much longer battery lifespan
Trade-offs
- –No major technical downsides compared to rival.
Will It Power Your Gear?
Scenario math and per-appliance runtimes, modeled from the spec record.
Scenario verdicts
We ran the math on seven 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 300 1,848Wh (12%). 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 300 1,393Wh (15%). 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 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
535 PowerHouse
The 535 PowerHouse finishes the night; the Yeti 300 does not. A CPAP-sized night runs about 320 watt-hours, and after the standard derate the Yeti has roughly 252 to give — it comes up about 68 short before morning. The Anker covers the same night with 115 to spare, enough headroom for a humidifier setting. If this is the job you are buying for, the extra capacity is not a luxury — it is the difference between a full night and a 3 a.m. shutdown.
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 300 658Wh (28%). 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 300 can start the 400W peak but not hold it — 600W of surge gets it going, then the 350W 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 300 4,433Wh (5%). 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
SCN-07 · an afternoon · needs 100Wh
Afternoon Off-Grid
Phones and a speaker at the park, beach, or campsite — the small-unit job description
Either unit
This is the job small stations are actually for, and both do it: the 535 PowerHouse finishes at 23% used, the Yeti 300 at 40%. At this size the decider is what rides in the bag — 13.7 lbs for the Yeti 300 against 16.7 for the 535 PowerHouse — and price, not the leftover watt-hours.
Battery budget usedlower = more headroom
LOAD Phone Charger (×2) 30W×2h · Bluetooth Speaker 10W×4h
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
For this load: 535 PowerHouse runs 2.1h vs 1.2h.
$299.99 list · direct from Anker
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
Take the Anker 535 PowerHouse. It holds 72% more energy (512Wh vs 297Wh), costs $50 less, and delivers more total energy over its rated life than the higher-cycle Yeti — the entire value case runs one way. The Yeti 300 is better built, lighter, faster to recharge, and adds a UPS mode the Anker lacks, so if you specifically need a light, rugged unit with quick turnaround, it is worth the premium. But most people weighing these two are choosing a small power station on capacity and price, and on both the Anker wins.
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 300 price$349.95 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): UPS, CPAP, Solar Generator.
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 300 rates 3.7/5 (24th 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.
535 PowerHouse: Solar Recharge Takes 4.3h+
At its 120W rated solar ceiling, refilling the full 512Wh takes about 4.3 hours of sun — as a floor, since the rated figure assumes ideal panel angle and clear sky, and real days deliver less. Not practical as the primary charge source for daily off-grid use; treat solar as a top-up and plan on a wall outlet or generator.
535 PowerHouse: No App Control
Without app control, you have to physically walk to the 535 PowerHouse to check battery level, adjust settings, or monitor power draw. The Yeti 300 lets you do all that from your phone, including getting low-battery alerts.
The Yeti's UPS Mode Is the One Card the Anker Cannot Match
Give the Yeti its due here: it can sit inline between the wall and your gear and switch to battery in no worse than 20 milliseconds when the grid drops. For a router, a modem, or most desktops that is a clean bridge — though the fussiest PC power supplies sit right at that line, so test yours before you trust it. What the mode cannot do is outlast the outage: 252 usable watt-hours covers the flicker, not the night. Excellent for keeping the Wi-Fi alive; no substitute for capacity.
Warranty: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here.
Battery Lifespan in Real Years
The Yeti 300 is rated for 4,000 cycles vs 3,000. In real life: at daily use, that's 11 vs 8.2 years. At weekend use (twice a week), it's 38 vs 29 years. One caution reading years across different sizes: a cycle is 297Wh on the Yeti 300 and 512Wh on the 535 PowerHouse, so count lifetime energy — roughly 1,188 kWh against 1,536 kWh over the rated life. 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 300 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. One caution on the lifespan row: the Yeti 300 takes longer to reach its cycle rating, but a cycle moves a different amount of energy on each unit — the 535 PowerHouse still delivers more over its shorter horizon (1,536 vs 1,188 kWh). Years measure wear, not usefulness.
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
Parent-brand trust from Anker's consumer-electronics business, and strong value per watt-hour across the SOLIX line — the mid-size and larger models are among the better dollar-per-watt-hour buys around.
Worth knowing
SOLIX support has drifted from Anker's old no-hassle standard toward slower, more generic handling, and firmware updates have occasionally removed features. The brand is still strong; the support edge is not the sure thing it once was.
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
The heritage name in portable power — US-based, with genuinely rugged, weather-resistant hardware and an integrated ecosystem of coolers, solar panels, and vehicle kits.
Worth knowing
Goal Zero usually charges the most per watt-hour, and the premium once bought premium service; that has weakened, with longer waits and the official community forums recently shut. The hardware is still first-rate — the service reputation is the open question.
Analyst note
Both brands' support has slipped from its former peak; the difference is what you pay to reach it. The Anker costs less up front and less per watt-hour; the Yeti asks a premium that used to come with premium service and increasingly does not. Buy the Yeti for the hardware and the heritage, not for a support advantage that no longer clearly exists.
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 300
FIXED CAPACITYFixed at 297Wh, with no expansion — 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.
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
Field data on the 535 is modest — it is a legacy unit, not a fresh launch — but what exists is consistent. Reviewers measured about 89% round-trip efficiency and found it stayed stable and cool while delivering its full 500WA3. The cells are LFP rated for 3,000-plus cycles and a 10-year lifespan behind the five-year warrantyA1, in a body reviewers called compact for 512Wh, with four AC outlets, three USB-A, a USB-C, and a car socketA2.
Charging is lopsided: the wall is the quick part, solar the slow one. Input caps at 120W and realistically lands nearer 60-75W, so panel-only refills dragA4. Treat the sun as a top-up here, not the plan.
“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 300
The praise for the Yeti is about build and speed, not size. Reviewers single out the IP54 dust-and-water rating, rubberized corners, and a sturdy handle, plus a genuinely fast full rechargeB2. It reads as the more modern, more travel-ready unit, and that is a fair read.
Capacity is the recurring reservation. At 297Wh it is light-duty by design — reviewers put it at four to six hours on a laptop or 20 to 30 phone charges — and it strains near its 350W ceiling, where one reviewer's coffee maker forced a shutdown after about two minutesB3. At $350, several reviewers felt the price stings for what you getB4.
“A 297Wh LiFePO4 pack behind a 350W pure sine inverter (600W surge), rated 4,000 cycles — Goal Zero backs it with a long service life rather than raw output.”
Sources
goalzero.com · batteryskills.com · campingsolar.us · trailandkale.com · the-gadgeteer.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]
- Modern LFP (4,000+ cycles), IP54 ruggedness, and fast charging are the praise; small capacity and high price are the caveats. [Yeti 300 · 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]
- B2
“At 13.7 lbs, meets IP54 for dust and water resistance, with top-tier build quality — rubberized corners and a sturdy handle; recharges 0-100% in 50 minutes.”
campingsolar.us / trailandkale.com — Yeti 300 review · 2026 · [positive]
- B3
“The 297Wh capacity limits it to lighter-duty use — 4-6 hours on a laptop or 20-30 phone charges — and it struggled near its 300W limit, shutting down after 2 minutes with a coffee maker.”
batteryskills.com — Yeti 300 review · 2026 · [mixed]
- B4
“A modern LFP (not NMC) rugged compact unit, though at $349.95 the price stings for the capacity.”
the-gadgeteer.com — Yeti 300 review · 2026 · [mixed]
Research compiled August 30, 2026.
Who Should Buy Which
Buy the 535 PowerHouse if you…
- →The value camper who wants the most usable energy per dollar for weekends, road trips, and the occasional outage — the bigger battery for the smaller price.
- →Anyone planning to run a CPAP overnight: the Anker finishes the night with margin where the Yeti runs out before morning.
- →The home-base user who recharges from a wall outlet and just wants a durable, efficient reservoir to keep phones, laptops, and lights going, and does not care about app monitoring.
Buy the Yeti 300 if you…
- →The backpacker or overlander who wants the lightest, toughest unit and expects it to get rained on or dusty — IP54 and three pounds saved earn their keep hereB2.
- →Someone who recharges on the move and hates waiting: it refills far faster than the AnkerB2 and takes 200W of solar to the Anker's 120W.
- →The person who wants a small always-on backup for a router or modem, where the Yeti's UPS mode covers a grid flicker the Anker would pass through.
- →Laptop-first users who want 100W USB-C charging straight from the unit, not the Anker's 60W.
If neither fits
If your real load is a full weekend of camping, a multi-hour blackout with a fridge, or a day of van-life draw, both of these come up short — the scenarios show neither finishes those jobs. That buyer wants a much larger station built for multi-day loads, not a coin flip between two small ones.
The Bottom Line
The Anker 535 PowerHouse wins on the axis that brought you here: more usable energy for less money. It is the cheaper unit with the bigger battery, and it delivers more total energy across its rated life than the higher-cycle Yeti. No feature on the Yeti's side — the UPS, the app, the IP54 shell, the quick recharge — changes the arithmetic that you would be paying a premium to store less.
Buy the Yeti 300 if you know your priorities are weight, weatherproofing, and turnaround speed and you don't need the capacity. Everyone else: the Anker is more power, more lifetime energy, and fifty dollars still in your pocket. Take it.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Which costs less to own over time, the Anker 535 or the Goal Zero Yeti 300?
The Anker, on every measure. It is cheaper to buy and cheaper per lifetime kilowatt-hour. The Yeti's higher 4,000-cycle rating sounds like the durability win, but each cycle only moves a 297Wh pack, so the Anker delivers more total energy across its rated life. Longer-rated and cheaper-to-own are not the same thing here.
Can the Goal Zero Yeti 300 run a CPAP overnight?
Probably not a full night. A CPAP night draws more than the Yeti's usable reserve can deliver, so it is likely to quit before morning, while the Anker finishes with room to spare. If a CPAP is your main reason to buy, get the Anker — and add margin if you run a heated humidifier.
Does the Anker 535 PowerHouse have a UPS mode?
No. The Anker's spec sheet lists no UPS or switchover time, so anything plugged into it blinks off when the grid drops. The Yeti 300 does list a UPS mode rated no worse than 20 milliseconds, which is fine for a router, a modem, or most desktops, though the fussiest PC power supplies sit right at that threshold. For always-on network gear, that is a real point for the Yeti.
Why does the smaller Yeti 300 cost more than the bigger Anker 535?
You are paying for the newer design, not more energy. The Yeti is IP54-rugged, recharges much faster, accepts 200W of solar to the Anker's 120W, and adds a UPS mode, app control, and 100W USB-C the Anker lacks. On stored energy it is the worse deal — twice the price per watt-hour — but those features are what the premium buys.
Which is better for weekend camping, the Anker or the Yeti?
Honestly, neither covers a full weekend. A typical two-day camp needs several times what either can store, so both are really day-trip or single-overnight units. If you are choosing between just these two for light camping, the Anker gives more usable energy for less money. For a true weekend off-grid, skip both and buy a larger station built for multi-day loads.
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 300
$349.95
$349.95 · 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.