EF Ecoflow DELTA Pro 3.6kWh Solar Review: Specs, Pros and Cons

What stands out

• 3.6kWh battery capacity for extended runtime
• Includes a 400W portable solar panel
• 15 output ports including 5 AC outlets
• IP68 waterproof rating on the solar panel
• Smart app control via Wi-Fi or Bluetooth

Who it fits

Key specs explained for this unit

Capacity 3.6KWh

This value indicates the total energy storage available for your devices. A 3.6kWh capacity allows you to run high-draw appliances like refrigerators or power tools for extended periods. It suits users who need reliable backup power for homes or those engaging in serious off-grid camping. When comparing portable power stations, this figure helps you estimate how many days of essential use you can expect before needing to recharge the unit.

Output Ports 15: 5 AC, 4 USB-A, 2 USB-C, 2 DC, 1 Car

The unit provides fifteen distinct connection points for your electronics. This includes five standard AC outlets for household plugs, multiple USB ports for charging phones and tablets, and specialized DC or car ports for other gear. This variety means you can power a wide range of devices simultaneously without needing extra adapters. Look for this level of connectivity if you need to run multiple appliances at once during a power outage or outdoor trip.

Solar Panel Wattage 400W

This specification refers to the power output of the included solar panel. A 400W panel generates electricity from sunlight to recharge the battery. Higher wattage generally means faster charging times when using solar energy. This feature benefits users who plan to spend significant time away from grid electricity. When shopping, compare this wattage to other kits to understand how quickly you can replenish your energy reserves using only sunlight.

Weight 99 pounds

This figure describes the total mass of the power station and included panel. At 99 pounds, this system is heavy and likely requires two people to move safely. It suggests the unit is designed for stationary backup power or vehicle-based camping rather than hiking. When comparing portable power stations, consider this weight carefully. Heavier units often offer higher capacities, but you must ensure you have a stable surface and the physical ability to transport it to your desired location.

Design and build details

The unit measures 16.4 inches wide, 25 inches high, and 11.2 inches long. According to the listing, it weighs 99 pounds. These dimensions and mass indicate a stationary base unit rather than a handheld device. You should plan for a dedicated spot in your home or workshop. The size requires a flat surface that can support the full weight without risk of tipping.

The package includes a 400W portable solar panel that folds for transport. This panel weighs 35.3 pounds and carries an IP68 waterproof rating. This rating means the panel is dust tight and can withstand water immersion. You can deploy it outdoors in rain or dusty conditions without immediate damage concerns. The foldable design allows you to pack it into a carry case for easier movement.

The power station features 15 output ports. This layout includes five AC outlets, four USB-A ports, two USB-C ports, two DC ports, and one car power output. This variety lets you connect multiple devices simultaneously. You can power tools, charge phones, and run small appliances at the same time. The control interface relies on the EcoFlow app via Wi-Fi or Bluetooth. You can monitor status and adjust settings remotely. This digital control reduces the need for physical buttons on the main unit, keeping the exterior clean and simple.

Setup and everyday use guide

Setting up this system begins with unpacking two separate packages. The listing notes that the DELTA Pro power station and the 400W solar panel arrive independently. You must connect the solar panel to the unit to utilize solar charging. The panel folds for transport and includes an adjustable carry case. Its IP68 waterproof rating means it resists dust and water ingress during outdoor setup. Daily operation relies on the unit’s 15 versatile outputs. These include five AC outlets, four USB-A ports, two USB-C ports, two DC ports, one car power output, and one Anderson port. This variety allows you to power diverse devices simultaneously, from mobile phones to mini fans. The system supports smart app control via Wi-Fi or Bluetooth. Through the EcoFlow app, you can monitor charge levels, temperature, and charge or discharge times remotely. You can also customize settings for battery life and input or output parameters. Solar recharging times depend on panel quantity. A single 400W panel provides a full recharge in approximately 11 hours. Using three 400W panels reduces this time to 3.5 hours. The panel’s 22.4% conversion rate ensures efficient energy harvesting in various weather conditions. You should plan your layout around the 99-pound weight of the main unit, which suggests a stationary placement rather than frequent carrying.

Before you buy this unit

This system requires careful planning for long-term ownership. You must ensure your electrical setup supports the 15 versatile outputs, including five AC outlets and multiple USB ports. Check that your appliances match the voltage and wattage limits of the DELTA Pro. The included 400W solar panel offers efficient charging, but you may need additional panels for faster replenishment in low-light conditions. Keep the unit dry and clean to maintain its IP68-rated solar panel performance. Store it in a cool, dry place when not in use to preserve battery health. Compare this 3.6kWh capacity against other options in our guide to see if it meets your specific energy needs. Consider whether the 99-pound weight fits your storage space. Verify compatibility with your existing gear before purchasing.

Check before you buy

• Verify your appliances match the 15 output types and wattage limits.
• Ensure you have space for the 99-pound unit and solar panel.
• Check if the 3.6kWh capacity meets your extended off-grid energy needs.
• Confirm the 400W solar panel fits your current charging requirements.

The product at a glance

1

EF EcoFlow DELTA Pro 3.6kWh Solar Generator

Best for: High-capacity home backup and camping power

Running Wattage

3600W

Capacity

3.6KWh

Output Ports

15 outlets and ports

Voltage

120V

Solar Panel Wattage

400W

Application

Camping, Home, Emergency, RV

View on Amazon: EF EcoFlow DELTA Pro 3.6kWh Solar Generator Affiliate link

The EF Ecoflow DELTA Pro is a 3.6kWh portable power station paired with a 400W solar panel. It offers 15 output ports, including five AC outlets, two USB-C ports, and DC options. The solar panel features a 22.4% conversion rate and an IP68 waterproof rating. Weighing 99 pounds, this unit suits users needing high capacity and versatile charging options for off-grid or backup power needs.

Pros

• 3.6kWh large capacity for extended power supply
• 15 versatile output ports including 5 AC and 2 USB-C
• 400W solar panel with 22.4% conversion efficiency
• IP68 waterproof and dust-tight solar panel
• Smart app control via Wi-Fi or Bluetooth

Cons

• Heavy at 99 pounds, limiting portability
• Solar panel and power station ship in separate packages
• Full recharge takes 11 hours with a single panel

Good fit if

• You need a high-capacity power source for home backup
• You require multiple simultaneous output types for various devices
• You want to recharge using solar energy efficiently

Skip if

• You need a lightweight unit for frequent travel
• You prefer an all-in-one package without separate shipping
• You need faster solar recharging times under 3.5 hours

Verdict: EF Ecoflow DELTA Pro 3.6kWh with 400W Panel fits users who prioritize high capacity and versatile outputs over easy portability. Its robust build and extensive port selection make it ideal for stationary backup or camping setups where weight is less critical.

Specifications side by side

Frequently asked questions

See also

• ef ecoflow delta pro 3 6kwh solar alternatives
• best EF Ecoflow 400W generators
• ef ecoflow delta pro 3 6kwh solar review
• ef ecoflow smart home panel 3 review