Head-to-head test
Anker 535 PowerHouse vs Anker SOLIX C300 DC
Real-world runtimes, scenario verdicts, and ownership costs compared — which wins for your use case.
Full profiles: Anker 535 PowerHouse → · Anker SOLIX C300 DC →
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.
$199.99 · direct from Anker
Last checked 1 day ago. Prices move — check before you buy.
Spec deltas
Both carry the Anker name, but they're built for different buyers. The 535 PowerHouse (512Wh, 500W) and the SOLIX C300 DC (288Wh, 300W) come from different product lines with different engineering priorities. Neither unit pulls ahead clearly. That means your specific use case decides this one.
The 535 PowerHouse holds 224Wh more than the SOLIX C300 DC — about 3 hours on a fridge against 2 — a real but modest edge that shows up mainly on longer outages. For camping, tailgating, or keeping devices charged, both have the headroom, so price, weight, and longevity lead the decision instead.
Both handle weekend camping, tailgating, and emergency preparedness. Your call is whether saving $100 (SOLIX C300 DC) matters more than the 535 PowerHouse's specific advantages. Most buyers stop at the sticker price and miss this: over a full lifespan the 535 PowerHouse works out to about $0.2/kWh against the SOLIX C300 DC's $0.23, a gap that compounds in the 535 PowerHouse's favor the more you cycle it. Keep scrolling for the full breakdown. The scenario verdicts below hold a few surprises.
Bench Notes
What each unit does well, where it falls short, and the trade-offs that matter.
Anker 535 PowerHouse
At 500W, this unit is strictly for personal electronics (phones, laptops) and small CPAP machines. Do not expect to run kitchen appliances. At only 16.7 lbs, it is exceptionally portable. You can easily carry it one-handed to a campsite or tailgating party. A standout feature is the value proposition: at roughly $0.59 per watt-hour, it's one of the most cost-effective options on the market.
Strengths
- +Larger battery capacity
- +Higher AC output
- +Longer warranty
- +Faster solar charging
Trade-offs
- –Substantially more expensive (+$100) than the SOLIX C300 DC.
- –Significantly heavier (+10.5 lbs), making it harder to move.
- –Lacks smartphone app control for remote monitoring.
Anker SOLIX C300 DC
At 300W, this unit is strictly for personal electronics (phones, laptops) and small CPAP machines. Do not expect to run kitchen appliances. At only 6.2 lbs, it is exceptionally portable. You can easily carry it one-handed to a campsite or tailgating party.
Strengths
- +Costs $100 less
- +Lighter by 10.5 lb
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
The SOLIX C300 DC has no AC outlets, so the led lights and box fan in this scenario never plug in — it's a DC station for USB and 12V gear, and no wattage figure changes that, so capacity never gets a say. This is the wrong kind of unit for the job rather than a close call. The 535 PowerHouse doesn't have the energy either — 435Wh usable against 2,100Wh, 1,665Wh short — so neither route works.
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
The SOLIX C300 DC has no AC outlets, so the fridge, router + modem and the rest in this scenario never plug in — it's a DC station for USB and 12V gear, and no wattage figure changes that, so capacity never gets a say. This is the wrong kind of unit for the job rather than a close call. The 535 PowerHouse doesn't have the energy either — 435Wh usable against 1,645Wh, 1,210Wh short — so neither route works.
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 SOLIX C300 DC doesn't finish — 245Wh usable against the 320Wh this needs leaves it 75Wh short, about 76% of the scenario covered. The 535 PowerHouse covers it with 115Wh to spare.
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
The SOLIX C300 DC has no AC outlets, so the external monitor and router + modem in this scenario never plug in — it's a DC station for USB and 12V gear, and no wattage figure changes that, so capacity never gets a say. This is the wrong kind of unit for the job rather than a close call. The 535 PowerHouse doesn't have the energy either — 435Wh usable against 910Wh, 475Wh short — so neither route works.
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 SOLIX C300 DC has no AC outlets, so the blender and led tv in this scenario never plug in — it's a DC station for USB and 12V gear, and no wattage figure changes that, so capacity never gets a say. This is the wrong kind 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
The SOLIX C300 DC has no AC outlets, so the mini-fridge, led lights and the rest in this scenario never plug in — it's a DC station for USB and 12V gear, and no wattage figure changes that, so capacity never gets a say. This is the wrong kind of unit for the job rather than a close call. The 535 PowerHouse doesn't have the energy either — 435Wh usable against 4,685Wh, 4,250Wh short — so neither route works.
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 SOLIX C300 DC at 41%. At this size the decider is what rides in the bag — 6.2 lbs for the SOLIX C300 DC 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
Only the 535 PowerHouse can run this load — the SOLIX C300 DC has no AC outlets for the wall-plug gear in it.
$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
July 10, 2026
Verdict: evenly matched
These two units are evenly matched. The 535 PowerHouse is heavier by 10.5 lbs, while the price difference is only $100. Your choice comes down to brand preference mostly. One class note: the SOLIX C300 DC is DC-only — its output figure is a USB/12V port total, not an inverter rating, and nothing with a wall plug runs on it.
Overall score margin: 1,800 vs 1,610 — note the SOLIX C300 DC is DC-only, so its output enters the score as a USB/12V port total, not an inverter rating (+11.8%)
Written by Wenny Zheng, Portable Power Tester · Station Arena Test Desk · Updated July 10, 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.
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 SOLIX C300 DC rates 4.4/5 (62nd 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.
SOLIX C300 DC: No AC Outlets At All
The SOLIX C300 DC's 300W is a DC port total — USB and 12V — not an inverter rating. Anything with a wall plug (a fridge, a TV, a coffee maker, most fans and lamps) never plugs in, at any wattage. That's the design, not a defect: it buys weight, silence, and efficiency for phone, laptop, camera, and 12V-CPAP loads. The 535 PowerHouse carries a real inverter behind 4 AC outlets, so it plays in both worlds. Decide which side of that line your gear lives on before weighing anything else on this 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 SOLIX C300 DC lets you do all that from your phone, including getting low-battery alerts.
Warranty: 5 Years vs 3
The 535 PowerHouse is covered for 5 years against the SOLIX C300 DC's 3 years. An underrated factor if you're keeping this unit for years.
Ownership 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 SOLIX C300 DC is cheaper to buy, but the 535 PowerHouse is cheaper to own. At $0.2/kWh over its lifetime vs $0.23/kWh, the 535 PowerHouse's higher cycle life and capacity make each dollar go further over the years. One thing to know reading the table: both carry the same 3,000-cycle rating, so the lifetime rows are sticker price and capacity in disguise — the wear horizon is identical and decides nothing here.
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.
SOLIX C300 DC
FIXED CAPACITYFixed at 288Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 100W 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.
The Bottom Line
These two LiFePO4 portable power stations are genuinely close. After comparing capacity, output, portability, price, and real-world runtime, neither has a decisive advantage. Your decision should come down to whichever unit wins in the specific scenarios that match your use case — check the verdicts above.
If neither the 535 PowerHouse nor the SOLIX C300 DC feels like the right fit, your power needs probably sit outside what these two target. If you're planning whole-home backup or running power-hungry appliances (electric heaters, window AC), you'll want a larger system in the 3,000–5,000Wh range with expansion battery support. Prices on portable power stations fluctuate frequently. Both Anker discount regularly, so check the current price before committing. Prime Day and Black Friday pricing typically drops 20-30%.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Can I actually carry the 535 PowerHouse, or is the SOLIX C300 DC the only portable option?
The SOLIX C300 DC at 6.2 lbs is genuinely grab-and-go. Toss it in a backpack, carry it one-handed to a picnic, take it on a boat. The 535 PowerHouse at 16.7 lbs is a different story. It's like carrying a large suitcase full of books. If you're setting up and breaking down camp frequently, this weight difference will exhaust you by day two.
Where to buy
Anker 535 PowerHouse
$299.99
$299.99 · direct from Anker
Last checked 1 day ago. Prices move — check before you buy.
Anker SOLIX C300 DC
$199.99
$199.99 · direct from Anker
Last checked 1 day ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.