Choosing between the EcoFlow Delta Pro and Tesla Powerwall depends on whether you need a mobile power solution or a whole-home battery system. This guide compares the specs, features, and key differences between the two to help you choose the right backup power option.
Based on technical specifications and user-reported performance, we’ll break down power output, battery capacity, expandability, charging methods, and cost to highlight which system best suits your off-grid, backup, or whole-home energy needs.
EcoFlow vs Tesla Powerwall Specs Comparison
| Feature | EcoFlow Delta Pro | Tesla Powerwall 2 |
|---|---|---|
| Battery Capacity | 3.6kWh (expandable to 25kWh) | 13.5kWh |
| Inverter Power | 3,600W (7,200W surge) | 5,000W (7,000W peak) |
| Battery Chemistry | LiFePO4 | NMC (Nickel Manganese Cobalt) |
| Weight | 99 lbs | 251.3 lbs |
| Portability | Yes (wheels + handle) | No (wall-mounted) |
| Max Solar Input | 1,600W | 4,000W (via Tesla Gateway) |
| AC Charging Speed | 1.8 hrs (240V) | N/A (hardwired) |
| Wi-Fi/App Control | Yes | Yes |
| Expandable | Yes (up to 3 units + Smart Extra Battery) | Yes (up to 10 Powerwalls) |
| Price (approx.) | $3,699 | $9,000–$12,000 (installed) |
Table Caption: EcoFlow Delta Pro vs Tesla Powerwall Specs Comparison
Power & Performance
The Tesla Powerwall is optimized for whole-home backup with a continuous output of 5kW and surge up to 7kW. It can run heavy loads like HVAC systems and electric ovens when paired with a Tesla Gateway.
The EcoFlow Delta Pro offers 3,600W continuous output (7,200W surge), suitable for running most home appliances, RVs, and power tools. For even more output, two Delta Pros can be paired to double the capacity.
Verdict: Tesla wins for fixed, high-output home backup; EcoFlow is better for flexible, high-power use in mobile or off-grid settings.
Battery Capacity & Cycle Life
The Tesla Powerwall has a fixed 13.5kWh capacity using NMC chemistry, typically rated for 10 years or 4,000+ cycles at 80% capacity.
The EcoFlow Delta Pro starts at 3.6kWh but can be expanded to 25kWh with additional batteries and units. It uses LiFePO4 chemistry, known for longer cycle life — over 3,500 cycles to 80% capacity.
Verdict: Tesla offers more out-of-the-box capacity; EcoFlow offers flexibility and longer-lasting battery chemistry.
Output Ports & Expandability
EcoFlow DELTA Pro Solar Generator (PV220W)
from: EcoFlow
The EcoFlow Delta Pro includes multiple AC outlets, USB ports, and a 12V car port, making it plug-and-play. It’s designed for direct use with devices or transfer switches.
The Powerwall lacks user-facing ports — it integrates into home electrical systems and requires professional installation. It’s scalable up to 10 units for large home backup.
Verdict: EcoFlow excels in direct-use applications; Tesla dominates for whole-home energy storage.
Portability & Weight
At 99 lbs with wheels and telescoping handle, the EcoFlow Delta Pro is portable for RVs, vans, cabins, or mobile job sites.
The Tesla Powerwall weighs over 250 lbs and is permanently wall-mounted. It’s not designed to move once installed.
Verdict: EcoFlow wins for portability and flexibility.
Charging Options
The EcoFlow Delta Pro can charge via AC, solar (up to 1,600W), EV stations, or even gas generators. Its 240V AC input allows a full charge in under 2 hours.
The Tesla Powerwall relies on solar panels through a Tesla inverter or can charge from the grid. It’s not user-rechargeable with portable solar or AC unless professionally configured.
Verdict: EcoFlow offers unmatched charging flexibility for off-grid or mobile users.
Price & Value
The EcoFlow Delta Pro retails for around $3,699 before expansions. It’s modular and doesn’t require installation costs.
The Tesla Powerwall ranges from $9,000 to $12,000 installed, with additional costs for extra units, inverters, or integration.
Verdict: EcoFlow is more cost-effective for personal or modular use; Tesla Powerwall is a long-term investment for full-home backup.
Final Verdict
- Choose the EcoFlow Delta Pro if you need portability, modular expansion, and flexible charging for RVs, off-grid living, or backup in smaller spaces.
- Choose the Tesla Powerwall if you want seamless, high-capacity whole-home backup with grid-tied solar and are willing to invest in professional installation.
- 30% Tax Credit Could be Applied. You could apply for the Residential Clean Energy Credit for qualified solar electric property costs. Please check with your utility to verify eligibility & requirements for Residential Clean Energy Credit programs.
- Large Capacity. Featuring a 3600Wh LFP battery capacity, DELTA Pro provides strong electrical storage for home battery backup power supply and outdoor camping. Applied with DELTA Pro Extra Batteries or Smart Generators, the electric generator can expand its capacity from 3.6kWh to 25kWh.
- Maximum Output Flexibility. A single DELTA Pro unit packs a 3600W AC output, which can be expanded up to 4500W with X-Boost technology. You can even pair two units together to achieve 7200W. Power 99.99% heavy-duty devices at home, outdoors, or at work. With 15 output methods: 2*USB-A, 2*USB-A Fast Charge, 2*USB-C (100W), 5*AC Outlets, 2*DC Outlets, 1 car power output and 1 Anderson port, the solar power station grants the ability to power multiple devices at the same time.
FAQs
Can the EcoFlow Delta Pro power an entire home?
Not on its own. It can run essential appliances or circuits when paired with a transfer switch or Smart Home Panel, but it’s not a whole-home solution like the Powerwall.
Is the Tesla Powerwall worth it without solar panels?
Yes, it can still store grid energy for backup, but it’s most efficient when paired with solar to reduce long-term utility costs.
Can I install a Tesla Powerwall myself?
No, Tesla requires certified installers due to the complexity and grid-tied nature of the system.
How long can the EcoFlow Delta Pro run a fridge?
A typical fridge uses about 150–200W. The Delta Pro could run it for 15–20+ hours on a single charge, depending on usage cycles.
Individual buyer’s guides:
Last update on 2025-05-12 / Affiliate links / Images from Amazon Product Advertising API