This guide compares the specs, features, and performance differences between the EcoFlow Delta Pro Ultra and the Anker SOLIX F3800, two of the most powerful home backup and off-grid portable power stations available today.
Both offer expandable LiFePO4 battery systems, high inverter output, and serious solar input capabilities — but they target slightly different user needs. Let’s break down the key distinctions to help you decide which system fits your energy requirements best.
Specs Comparison Table
EcoFlow Delta Pro Ultra vs Anker SOLIX F3800 Specs Comparison
| Feature | EcoFlow Delta Pro Ultra | Anker SOLIX F3800 |
|---|---|---|
| Battery Capacity | 6kWh (base) – 90kWh (expandable) | 3.84kWh (base) – 26.9kWh (expandable) |
| Inverter Output | 7200W (split-phase), 12,000W surge | 6000W (split-phase), 9000W surge |
| Battery Chemistry | LiFePO4 | LiFePO4 |
| Cycle Life | 3,500+ to 80% | 3,000+ to 80% |
| Solar Input | 5600W max | 2400W max |
| AC Charging | 7200W (with dual input) | 2900W |
| Weight | 224 lbs (with base battery) | 132 lbs |
| 240V Split-Phase Support | Yes | Yes |
| EV Charger Compatible | Yes | Yes |
| Wi-Fi/App Control | Yes | Yes |
| Price | ~$5,799 (base) | ~$3,999 (base) |
Power & Performance
EcoFlow DELTA Pro Ultra Solar Generator
from: EcoFlow
The EcoFlow Delta Pro Ultra delivers a massive 7200W output with split-phase 240V capability, making it ideal for whole-home backup and large appliances. It can handle surge loads up to 12,000W, beating the Anker’s 9000W surge.
The Anker SOLIX F3800 also supports 240V output up to 6000W, which is strong enough for most home appliances, though less ideal for heavy-duty tools or larger HVAC systems.
Verdict: For peak power delivery, EcoFlow leads.
Battery Capacity & Cycle Life
EcoFlow starts with a larger 6kWh base battery and can scale up to an enormous 90kWh with multiple expansion batteries. Anker starts smaller at 3.84kWh, expandable to 26.9kWh.
Both use LiFePO4 batteries with long life spans — EcoFlow claims 3,500+ cycles, Anker rates at 3,000+ cycles.
Verdict: EcoFlow offers more energy storage potential and slightly longer battery life.
Output Ports & Expandability
The Anker SOLIX F3800 includes:
- NEMA 14-50 and L14-30 ports
- 6× AC outlets
- 2× 100W USB-C ports
- 2× USB-A, carport, and RV output
The EcoFlow Delta Pro Ultra has:
- Dual NEMA 14-50 and L14-30 ports
- Multiple AC, DC, USB-A, and USB-C outputs
- 3,600W EV charger support (Level 2)
Both are highly expandable, but EcoFlow’s modular ecosystem integrates more seamlessly with home panels and RV/EV systems.
Verdict: Tie in port variety; EcoFlow has more home integration flexibility.
Portability & Weight
The SOLIX F3800 is significantly lighter at 132 lbs, with wheels and a handle for easier transport. The Delta Pro Ultra base unit weighs 224 lbs and is less mobile without a dolly.
Verdict: Anker wins for portability.
Charging Options
EcoFlow supports:
- Up to 5600W solar charging
- Dual AC + solar input for fastest recharge
- EV station charging
Anker supports:
- 2400W solar input
- Up to 2900W AC input
- Also supports EV chargers
EcoFlow recharges faster overall, especially with dual input methods.
Verdict: EcoFlow leads in charging speed and flexibility.
Price & Value
- EcoFlow Delta Pro Ultra base price: ~$5,799
- Anker SOLIX F3800 base price: ~$3,999
For users needing home-scale power backup and large solar arrays, EcoFlow justifies the price with higher capacity and output. Anker is a better value for mid-size needs at a lower cost.
Verdict: Anker offers better value for smaller-scale users; EcoFlow is worth it for high-demand setups.
Final Verdict
Choose the EcoFlow Delta Pro Ultra if:
- You need whole-home backup or large appliance support
- You want maximum expandability and fastest charging
- You’re installing solar with 4000W+ input
Choose the Anker SOLIX F3800 if:
- You need a powerful but portable unit
- You’re on a tighter budget
- You want plug-and-play RV or mid-size home support
Both units are top-tier for off-grid, emergency, or solar-integrated setups, but your power needs and mobility preferences will determine the best fit.
FAQs
Can both units power an entire home?
Yes, with expansion batteries and proper 240V integration, both can serve as whole-home backups — EcoFlow offers more wattage and storage.
Which one charges faster with solar?
EcoFlow supports up to 5600W solar input, more than double Anker’s 2400W limit.
Are they suitable for RV or van life?
Yes, but the Anker SOLIX F3800 is more portable and RV-ready out of the box.
Individual buyer’s guides:
- EcoFlow DELTA Pro Ultra Buyer’s Guide
- Anker SOLIX F3800 Buyer’s Guide: Is This the Right Powerhouse for You?
Last update on 2025-05-12 / Affiliate links / Images from Amazon Product Advertising API