The Short Answer
EcoFlow DELTA Pro 3
Starts at 4,096Wh and 4,000W with native 120/240V output. EcoFlow specifies expansion from 4kWh to 12kWh for a single unit and larger system-level configurations.
Jackery HomePower 3600 Plus
3,584Wh and 3,600W in a wheeled format, with compatible expansion batteries taking a single unit to roughly 21.5kWh.
Anker SOLIX E10
A different class of system: 6–90kWh battery scalability, 7.6kW rated output per unit, and Power Dock configurations for automatic 200A whole-home backup.
BLUETTI Apex 300
3,840W output with 120/240V support and modular B300K batteries. The 2×B300K configuration we captured totals 8,294.4Wh.
Quick Comparison
| Platform | Configuration highlighted here | Capacity / output | Why compare it | Observed Amazon price |
|---|---|---|---|---|
| EcoFlow DELTA Pro 3 | + 400W portable solar panel | 4,096Wh / 4,000W / 120/240V | Expandable platform with strong AC output and solar charging | $3,099 |
| Jackery HomePower 3600 Plus | + 2×200W solar panels | 3,584Wh / 3,600W | Wheeled home-backup format with deep battery expansion path | $2,469 |
| Anker SOLIX E10 | Power Dock + extra battery package captured on Amazon | 12kWh-class captured package; E10 platform supports 6–90kWh | Automatic whole-home integration and 200A Power Dock ecosystem | $9,899 |
| BLUETTI Apex 300 | + 2×B300K | 8,294.4Wh / 3,840W / 120/240V | Large modular battery capacity with dual-voltage output | $4,099 |
Four High-Capacity Configurations Worth Comparing
DELTA Pro 3 + 400W Portable Solar Panel
4,096Wh • 4,000W AC • 8,000W surge • 120/240V
EcoFlow specifies 2,600W total solar input, LFP chemistry and expansion to 12kWh with two compatible extra batteries on one DELTA Pro 3. This bundle is a practical entry point when you want serious output plus portable solar without immediately building the largest system.
Observed Amazon price: $3,099 on September 23, 2026.
Check current Amazon priceHomePower 3600 Plus + 2×200W Solar Panels
3,584Wh • 3,600W AC • 7,200W surge
Jackery specifies 3,584Wh of LFP storage, 3,600W rated AC output and support for up to five Battery Pack 3600 units, taking one HomePower 3600 Plus to about 21.5kWh. Wheels and a retractable handle make this more movable than many large home-backup platforms.
Observed Amazon price: $2,469 on September 23, 2026.
Check current Amazon priceE10 + Power Dock + Extra Battery
E10 platform: 6–90kWh • 7.6kW rated per unit • up to 10kW turbo per unit with 2+ batteries
Anker positions E10 as a whole-home system rather than simply a large portable battery. Its official specifications include 120/240V split-phase output, Power Dock support for 200A whole-home coverage and automatic switchover of 20ms or less. The exact Amazon bundle we captured was a premium Power Dock + extra-battery configuration.
Observed Amazon price: $9,899 on September 23, 2026. Verify the exact included components before purchase.
Check current Amazon priceApex 300 + 2×B300K
8,294.4Wh • 3,840W • 7,680W lifting power • 120/240V
BLUETTI's Apex 300 platform starts at 2,764.8Wh and 3,840W. Adding two B300K modules raises this captured configuration to 8,294.4Wh while keeping the same inverter platform. BLUETTI also offers broader Apex configurations for home integration and further expansion.
Observed Amazon price: $4,099 on September 23, 2026.
Check current Amazon priceOther High-Capacity Bundles We Captured
DELTA Pro Ultra + Extra Battery
Observed at $5,999. A substantially larger EcoFlow configuration for buyers prioritizing deeper stored energy.
Check current Amazon priceDELTA Pro 3 + Extra Battery
Observed at $4,459. Adds battery capacity while staying on the DELTA Pro 3 platform.
Check current Amazon priceSolar Generator 5000 Plus + 2×500W Panels + Transfer Switch
Observed at $5,479. A more complete Jackery package combining 5,040Wh of storage, high AC output, solar and transfer hardware.
Check current Amazon priceHomePower 3600 Plus + Extra Battery + 2×200W Panels
Observed at $3,949. Starts with 7,168Wh while retaining the HomePower 3600 Plus expansion ecosystem.
Check current Amazon priceHow to Choose the Right Level of Backup
1. Start with energy, not price
List the loads you actually need during an outage and estimate watt-hours. A larger battery is useful only if it matches your real runtime target.
2. Separate 120V from 240V needs
Refrigerators, lights and internet equipment are very different from well pumps, dryers and central air. Confirm both voltage and startup requirements.
3. Decide portable vs. integrated
A wheeled battery you plug appliances into is a different purchase from a Power Dock, transfer-switch or panel-connected system that may require professional installation.
4. Price the complete system
Extra batteries, solar panels, transfer hardware, cables and installation can materially change the real project cost. Compare complete configurations, not just the base power station.
Portable Backup vs. Whole-Home Integration
EcoFlow DELTA Pro 3, Jackery HomePower 3600 Plus and BLUETTI Apex 300 can all form the basis of substantial backup systems, but the exact home connection depends on compatible accessories and configuration. Anker SOLIX E10 with Power Dock is explicitly designed around integrated automatic whole-home backup, including 200A service coverage in supported configurations.
Do not assume a high wattage number means a system can be connected directly to your home's wiring. Panel-connected backup should use manufacturer-supported equipment and qualified installation where required by code.
Frequently Asked Questions
How much battery capacity is enough for an outage?
It depends on your average load and desired runtime. A 4kWh battery running a 400W average load has a theoretical 10 hours before conversion losses and reserve margin. High-demand appliances can reduce runtime dramatically.
Do I need 240V backup?
Only if the loads you intend to support require it. Many household essentials are 120V, while equipment such as some well pumps, dryers and central HVAC systems can require 240V.
Is a $9,000 system automatically better than a $3,000 system?
No. Larger integrated systems can provide more capacity, automation and home-circuit coverage, but they also cost more and may require installation. The right system is the one that matches your loads, runtime target and connection plan.
Should I buy solar panels at the same time?
Solar can extend resilience during longer outages, but panel output depends on weather, shading, orientation and the power station's input limits. For short outages, fast AC charging may matter more.
Research Sources
Manufacturer specifications checked September 23, 2026: EcoFlow DELTA Pro 3, Jackery HomePower 3600 Plus, Anker SOLIX E10, and BLUETTI Apex 300.
Retail prices and bundle contents change frequently. The Amazon prices in this article are historical observations from the date above, not promises of current pricing.
Related Practical Buyer Guides
Best Portable Power Stations for Home Power Outages in 2026 — our more practical outage-focused picks.
What Size Portable Power Station Do You Actually Need? — calculate watts, watt-hours and runtime before choosing a system.