Head-to-head test
Anker SOLIX E10 vs BLUETTI Apex 300 + B300K
Real-world runtimes, scenario verdicts, and ownership costs compared — which wins for your use case.
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Anker
SOLIX E10
9,115Power Score · The AC & Fridge Zone
$4,299.00 list · direct from Anker
BLUETTI
Apex 300 + B300K
6,552Power Score · The AC & Fridge Zone
$2,599.00 list · direct from BLUETTI
Spec deltas
The Anker SOLIX E10 and BLUETTI Apex 300 + B300K compete for the same spot. Similar LiFePO4 capacity, similar price range, different brands behind them. In this matchup, ecosystem, app quality, and warranty reputation matter as much as raw specs. The SOLIX E10 has a slight edge, but the margin is close enough that your use case should break the tie.
What the spec gap means in practice: the SOLIX E10's 7,680W inverter can run a window AC unit, a full-size fridge, or power tools. The Apex 300 + B300K's 3,840W inverter will flat-out refuse to start those appliances. On stamina, the SOLIX E10 keeps a fridge alive for roughly 35 hours vs the Apex 300 + B300K's 31 hours. The cost? Portability. At 190.6 lbs, the SOLIX E10 is a two-person lift you set down once and leave. The Apex 300 + B300K at 148.8 lbs is more manageable, though still not light.
Pick the SOLIX E10 if your primary use is van life daily. Go with the Apex 300 + B300K if you need the heavier-duty specs for demanding loads. Most buyers overlook this: the Apex 300 + B300K costs ~$0.13/kWh over its full lifespan, which adds up significantly over years of regular use. 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 SOLIX E10
With a massive 7,680W output (and 1,000,090W surge), the SOLIX E10 can run high-wattage appliances like space heaters, hair dryers, and electric grills without tripping. Weighing in at 190.6 lbs, this is not a unit you want to carry far. It's best suited as a stationary backup or RV companion.
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Substantially more expensive (+$1,700) than the Apex 300 + B300K.
- –Significantly heavier (+41.8 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
BLUETTI Apex 300 + B300K
With a massive 3,840W output (and 7,680W surge), the Apex 300 + B300K can run high-wattage appliances like space heaters, hair dryers, and electric grills without tripping. Weighing in at 148.8 lbs, this is not a unit you want to carry far. It's best suited as a stationary backup or RV companion. A standout feature is the value proposition: at roughly $0.47 per watt-hour, it's one of the most cost-effective options on the market.
Strengths
- +Costs $1,700 less
- +Lighter by 41.8 lb
Trade-offs
- –Weaker inverter (-3,840W) limits appliance compatibility.
- –Very heavy unit that may be difficult for one person to lift.
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
Either unit
Both handle two nights comfortably. The Apex 300 + B300K uses 45% and the SOLIX E10 uses 40%. With this little difference, pick based on weight and portability instead. The lighter unit wins for car camping.
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
Either unit
Both survive the blackout with similar margin. Since the capacity difference doesn't matter here, focus on which unit has UPS mode — seamless switchover protects your router and PC from the split-second power gap.
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
Both are wildly overqualified for CPAP. You're using 7% or less. Save your money and buy whichever is cheaper; the extra capacity is completely wasted on a 40W overnight load. Put the savings toward a second battery for multi-night trips.
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
Either unit
Both power your workstation all day without breaking a sweat. At these utilization levels, prioritize the unit with better USB-C output for direct laptop charging. It's more convenient than using the AC inverter and wastes less energy.
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
Either unit
Both handle game day easily. Since capacity isn't the deciding factor, consider weight: the lighter unit is easier to load into a truck bed. Also check if either has Bluetooth speaker-level noise. Fan sound matters in social settings.
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
SOLIX E10
The Apex 300 + B300K uses 100% of its battery. Doable but tight. Miss a day of solar recharge and you're in trouble. The SOLIX E10 at 90% gives a much more sustainable daily rhythm. For full-time van life, miss a recharge day with the tighter unit and the next 24 hours get stressful fast.
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 six 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: SOLIX E10 runs 25.5h vs 22.9h.
$4,299 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 0–348.2hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–69.6hHigh-Draw Appliances
These reveal the real limitsscale 0–5.2h¹ 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: the SOLIX E10, on Power Score margin
These two units are closely matched on individual specs, but our Power Score analysis gives the SOLIX E10 the edge with a composite score of 9,115 vs 6,552.
Overall score margin: 9,115 vs 6,552 (+39.1%)
List prices as of July 10, 2026. The links below open Anker's and BLUETTI's current prices.
$4,299.00 list · direct from Anker
or check the Apex 300 + B300K price$2,599.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated July 10, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Full specifications
| Specification | SOLIX E10★ Our pick | Apex 300 + B300K |
|---|---|---|
| Price | $4,299.00 Check latest price | $2,599.00 Check latest price |
| Capacity (Wh) | 6144 | 5529.6 |
| Output (W) | 7680 | 3840 |
| Surge Peak | 10000W (90 min) | 7680W |
| AC Outlets | Hardwired (120/240V) | 6 |
| USB-C Charging Outputs | 0 | 100W |
| Solar Input (W) | 9000 | 2400 |
| Weight (lbs) | 190.6 | 148.8 |
| UPS | Yes (<20ms) | Yes (<10ms) |
| Charging Cycles | 4000 | 3500+ |
| Chemistry | LiFePO4 | LiFePO4 |
| Warranty (Years) | 5 | 5 |
| Battery Expansion Feasibility | Yes | Yes |
| App Control | Yes | Yes |
| $/Watt Hour | $.70 | $.47 |
| Noise Level (db) | Not Specified | 45 |
| Solar Input Type | Dual MPPT (30-450V) | MC4 |
| USB-A Ports | 0 | 2 |
| USB-C Ports | 0 | 2 |
| Cost per Whᵈ | $0.70/Wh | $0.47/Wh |
ᵈ Derived: price ÷ rated capacity.
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.
Test Notes & Caveats
Hidden gotchas and advantages we spotted that you won't find on the product page.
Weight Reality Check
Neither unit is grab-and-go. The Apex 300 + B300K (148.8 lbs) is a two-person lift. The SOLIX E10 (190.6 lbs) is firmly a two-person lift. It goes where you put it and stays there. That's a 42 lb difference, which you'll feel every time you relocate.
Apex 300 + B300K: 45dB Under Load
45dB is about as loud as a running refrigerator. If you're running a CPAP or sleeping near this unit, the fan noise may be noticeable. Most people find anything above 45dB disruptive for sleep.
Surge Power: Inverter Quality Indicator
The Apex 300 + B300K has a 2× surge-to-continuous ratio vs the SOLIX E10's 1.3×. A higher ratio (≥2×) means the inverter handles motor startup surges better. That's critical for fridges, AC compressors, and power tools that briefly draw 2-3× their rated wattage. The SOLIX E10 may trip when starting these appliances even though its continuous wattage looks sufficient.
UPS Speed: line-interactive (<10ms) vs standby (<20ms)
The Apex 300 + B300K switches to battery in 10ms (line-interactive (<10ms)), while the SOLIX E10 takes 20ms (standby (<20ms)). Safe for desktop PCs, routers, and CPAP machines. NAS drives are protected. This matters if you're using it as a home UPS for always-on equipment.
SOLIX E10: Noise Level Not Disclosed
The Apex 300 + B300K publishes its noise level (45dB), but the SOLIX E10 doesn't. Brands that don't disclose noise specs often have louder units. If noise matters to you (CPAP users, apartment dwellers), this is worth investigating before buying.
Full record above — the Test Desk pick is the SOLIX E10.
Check SOLIX E10 price →or check the Apex 300 + B300K 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.
| Metric | SOLIX E10 | Apex 300 + B300K |
|---|---|---|
| Purchase price | $4,299.00 | $2,599.00 |
| Lifetime energy delivery | 24,576 kWh | 19,354 kWh |
| Cost per lifetime kWh | $0.17 | $0.13 |
| Cost per warranty year | $860/yr | $520/yr |
| Battery lifespan | 11yr daily · 38.5yr weekends · 76.9yr weekly | 9.6yr daily · 33.7yr weekends · 67.3yr weekly |
Analyst note
The Apex 300 + B300K wins on both sticker price and long-term value. At $0.13/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.
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 dominance. InfiniPower technology for long cycle life. Gen 2 lineup offers exceptional $/Wh value — some of the best in the market.
Worth knowing
Support quality appears to be declining from its historically excellent level. Firmware updates have removed features without warning. Expansion ecosystem is smaller than EcoFlow's.
BLUETTI
Ecosystem
One of the broadest lineups — 15-20+ models from budget (AC2A) to flagship (Apex 300, 3072Wh). Includes specialized products: vehicle solar hubs, sodium-ion cold-weather units, and balcony storage systems.
Support
The most inconsistent support in the space. Heavily email-based with China timezone delays. Some users get smooth, efficient service; others report weeks of troubleshooting runarounds, being offered discounts on new units instead of repairs, and confusing third-party purchase claim processes. Buying direct from Bluetti's website tends to produce better support outcomes.
Community
Active and growing — Reddit r/bluetti has a dedicated community. Second-largest after EcoFlow in engagement.
App experience
Rated 4.5/5 iOS and Android — tied for best app experience in the category. V3.0 UI redesign was well-received.
Unique strength
Best capacity-to-price ratio in the market — strongest value proposition overall. Widest product diversity including industry-firsts like sodium-ion cold-weather units and dual solar+alternator vehicle hubs. Full LFP standardization across lineup (3,500-6,000+ cycles). Dual-voltage (120V/240V) in flagships.
Worth knowing
Customer support inconsistency is the #1 risk factor. Older/discontinued units may become unrepairable — no spare parts policy for some models. Some reports of erratic communication from support agents.
Analyst note
Anker and BLUETTI are close competitors. Both have established support channels and growing ecosystems. Compare their specific warranty terms and community size for your peace of mind.
Growth path
SOLIX E10
EXPANDABLESupports Anker expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 6,144Wh.
Accepts up to 9,000W of solar. Enough for a serious multi-panel array.
Limited ports. You'll likely need a power strip or splitter.
Expansion batteries are Anker-specific. You're investing in the Anker ecosystem.
Apex 300 + B300K
EXPANDABLESupports BLUETTI expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 5,530Wh.
Accepts up to 2,400W of solar. Enough for a serious multi-panel array.
Generous port selection supports complex multi-device setups.
Expansion batteries are BLUETTI-specific. You're investing in the BLUETTI ecosystem.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Both expand, but the SOLIX E10's higher solar ceiling (9,000W vs 2,400W) gives it the stronger off-grid growth path — more panels can feed a bigger bank as it grows.
The Bottom Line
The full picture comes down to this. The SOLIX E10 edges ahead on our overall analysis, but the margin is narrow enough that your specific use case should drive the decision. Review the scenario verdicts above — if the Apex 300 + B300K wins in the scenarios that match your life, it's the right choice regardless of aggregate scores.
If neither the SOLIX E10 nor the Apex 300 + B300K feels like the right fit, your power needs probably sit outside what these two target. For lighter use — weekend camping or phone/laptop charging — you'd be overpaying for capacity you'll rarely tap. Consider a unit in the 500–1,500Wh range instead. Prices on portable power stations fluctuate frequently. Both Anker and BLUETTI 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.
Is the SOLIX E10 worth $1,700 more than the Apex 300 + B300K?
The short answer: yes, if you'll actually use the extra capability. The SOLIX E10 costs $1,700 more, but that premium buys you 614.4Wh more battery capacity (that's 3 extra hours of running a mini-fridge); 3,840W higher AC output (opening the door to more demanding appliances); a longer-lasting battery rated for 4,000 cycles — that's 11 years at daily use; 6,600W faster solar charging for quicker off-grid recovery. On a cost-per-watt-hour basis, you're paying $0.70/Wh vs $0.47/Wh. For regular use, we'd pay the premium.
How does the 614.4Wh capacity difference actually affect daily use?
The SOLIX E10's 6,144Wh battery keeps a mini-fridge running for roughly 35 hours vs the Apex 300 + B300K's 31 hours. Both can handle a full 8-hour blackout setup (fridge + router + lights + phone charging ≈ 1,645Wh), but the SOLIX E10 finishes with significantly more margin. That matters if conditions aren't ideal or the outage runs long. What specs don't mention: runtime drops 20-30% in cold weather (below 32°F/0°C) as battery chemistry slows down. The SOLIX E10's extra capacity provides a critical cold-weather buffer. For occasional phone and laptop charging, both are overkill. This gap only matters for sustained, multi-appliance use.
Can I actually carry the SOLIX E10, or is the Apex 300 + B300K the only portable option?
Neither is "portable" in any hiking sense. The Apex 300 + B300K (148.8 lbs) and the SOLIX E10 (190.6 lbs) are both appliances you place and leave. The 41.8-lb difference matters when loading into a vehicle or moving between rooms, but that's about it. If true portability is your priority, look at units under 20 lbs in a different class entirely.
How fast can each unit recharge from solar panels in real conditions?
On paper, the SOLIX E10 accepts 9,000W vs the Apex 300 + B300K's 2,400W of solar input. What the spec sheet won't tell you: solar panels typically deliver only 60-80% of their rated output due to panel angle, cloud cover, and temperature. In realistic conditions, expect full recharge in about 1.0 hours for the SOLIX E10 and 3.3 hours for the Apex 300 + B300K. That gap widens on cloudy days, when the SOLIX E10's higher input ceiling captures more of whatever sunlight is available. One more thing: summer gives you ~7 productive solar hours per day. Winter drops to ~4. If solar is your primary recharge method, the SOLIX E10's advantage is substantial.
Is Anker or BLUETTI more reliable for long-term ownership?
Both brands have strengths and trade-offs. Anker: 5-year warranty standard on portable stations, 10-year on home energy systems. Historically very reliable, though some recent firmware updates have altered product functionality without notice or rollback option. BLUETTI: 2-6 years depending on model (up to 10 years on home backup systems). Response times vary significantly. Some reports of units being deemed unrepairable with no parts available for older models. One piece of advice from the power station community: regardless of brand, buy from Costco or Amazon. Their return policies provide a safety net that manufacturer warranties alone can't match, especially for a product you'll rely on in emergencies. Both brands use LFP (lithium iron phosphate) batteries in their current lineup, the most proven chemistry for longevity and safety.
Bottom line: should I buy the SOLIX E10 or the Apex 300 + B300K?
We'd pay the premium for the SOLIX E10. Yes, it costs more. The capability jump is real: you're stepping into a tier that handles appliances the base model can't start. The Apex 300 + B300K is still solid if budget is the priority, but the SOLIX E10 will leave you less likely to wish you'd "gone bigger" six months from now. That regret costs more than the price difference.
Where to buy
Anker SOLIX E10Pick
$4,299.00
$4,299.00 list · direct from Anker
BLUETTI Apex 300 + B300K
$2,599.00
$2,599.00 list · direct from BLUETTI
Prices may vary by retailer and are subject to change.