EcoFlow WAVE 3 Add-on Battery – 1024Wh LiFePO4 Expansion Battery

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EcoFlow WAVE 3 Add-on Battery – 1024Wh LiFePO4 Expansion Battery with 140W USB-C & Solar Charging

Power your adventures longer with the EcoFlow WAVE 3 Add-on Battery, a high-capacity 1024Wh LiFePO4 battery designed specifically for the EcoFlow WAVE 3 Portable Air Conditioner. Featuring a detachable design, multiple charging options, and integrated USB power delivery, this battery allows you to enjoy cordless cooling and heating wherever your journey takes you.

According to EcoFlow, the add-on battery can provide up to 8 hours of wireless operation, making it ideal for overnight camping, RV trips, van life, outdoor events, and emergency preparedness. Built with long-lasting LiFePO4 battery technology rated for 4,000 charge cycles, it delivers dependable portable power for years of everyday use.

Key Features

Designed for the EcoFlow WAVE 3
1024Wh LiFePO4 battery
Detachable portable design
Up to 8 hours of wireless operation (manufacturer stated)
4,000 charge cycles to 80% capacity
Up to 1000W charging input
Supports AC, solar, and vehicle charging
140W USB-C output
18W USB-A output
IP65 weather-resistant rating
Lightweight portable design

Expand Your WAVE 3 Runtime

The EcoFlow WAVE 3 Add-on Battery provides 1024Wh of portable energy storage for compatible EcoFlow WAVE 3 portable air conditioners.

According to EcoFlow, the battery can deliver up to 8 hours of wireless comfort, making it ideal for overnight operation without external power.

Actual runtime varies depending on operating mode, temperature, and usage conditions.

Detachable Portable Design

The battery features a detachable design, allowing you to:

Carry it separately
Store it conveniently
Transport it between locations
Power compatible WAVE 3 systems without being connected to utility power

Its compact form factor makes it suitable for camping, RVs, vehicles, cabins, and outdoor activities.

Long-Life LiFePO4 Battery

The WAVE 3 Add-on Battery uses premium LiFePO4 (LFP) battery technology.

According to the manufacturer:

Rated for 4,000 charge cycles to 80% capacity
Designed for up to 10 years of daily use

LiFePO4 chemistry is known for excellent durability and long service life.

Multiple Charging Options

The battery supports several charging methods for added flexibility.

AC Charging

Maximum Input Power:
- 1000W

Solar Charging

Input Voltage:
- 11–60V
Maximum Current:
- 13A
Maximum Solar Input:
- 400W

Vehicle Charging

Supports charging from a vehicle auxiliary power outlet.

12V / 24V
Maximum Current:
- 8A
Maximum Input:
- 200W

Integrated USB Power

The battery can also function as a portable charging station for compatible electronics.

USB-C Output

Up to 140W
Supports:
- 5V
- 9V
- 12V
- 15V
- 20V
- 28V
Up to 5A

USB-A Output

Up to 18W
Supports:
- 5V
- 9V
- 12V

Outdoor Ready

The battery carries an IP65 weather-resistant rating, helping protect it from dust and water exposure during outdoor use.

Specifications

Brand: EcoFlow
Model: WAVE 3 Add-on Battery
Product Type: Expansion Battery
Compatible Product: EcoFlow WAVE 3
Battery Capacity: 1024Wh
Battery Voltage: 51.2V
Battery Capacity (Ah): 20Ah
Battery Chemistry: LiFePO4 (LFP)
Battery Cycle Life: 4,000 cycles to 80% capacity
Maximum Input Power: 1000W
Solar Input:
- 11–60V
- 13A Max
- 400W Max
Vehicle Charging Input:
- 12V / 24V
- 8A Max
- 200W Max
Maximum Output Power: 858W
USB-C Output:
- Up to 140W
USB-A Output:
- Up to 18W
Dimensions:
- 20.3 × 11.1 × 4.4 in.
- (516 × 281 × 111 mm)
Weight:
- Approximately 21.4 lb (9.7 kg)
Charge Temperature:
- 32°F–113°F (0°C–45°C)
Discharge Temperature:
- 14°F–122°F (-10°C–50°C)
IP Rating: IP65
Condition: New

What's Included

1 × EcoFlow WAVE 3 Add-on Battery

Note: The supplied product information references "What's in the box" but does not specify additional included accessories.

Ideal For

EcoFlow WAVE 3 owners
Camping
RV travel
Van life
Off-grid cabins
Outdoor events
Emergency backup
Overnight cooling
Portable USB-C charging
Mobile workstations

Why It Stands Out

The EcoFlow WAVE 3 Add-on Battery delivers long-lasting portable energy while offering multiple charging methods and convenient USB power in one weather-resistant package.

Key advantages include:

1024Wh LiFePO4 battery
Up to 8 hours of wireless operation (manufacturer stated)
Long-life 4,000-cycle battery
Designed for up to 10 years of daily use (manufacturer stated)
Supports AC, solar, and vehicle charging
High-speed 140W USB-C output
18W USB-A output
IP65 weather-resistant construction
Lightweight detachable design
Portable off-grid power solution

Its combination of high capacity, premium battery technology, and flexible charging options makes it an excellent companion for EcoFlow WAVE 3 users who need dependable portable power.

Frequently Asked Questions

Which product is this battery designed for?

The WAVE 3 Add-on Battery is designed for the EcoFlow WAVE 3 Portable Air Conditioner.

How much battery capacity does it provide?

The battery has a 1024Wh capacity.

How long can it power the WAVE 3?

According to EcoFlow, it can provide up to 8 hours of wireless operation. Actual runtime depends on operating mode and environmental conditions.

What battery chemistry does it use?

The battery uses LiFePO4 (LFP) battery technology.

How many charge cycles is it rated for?

According to the manufacturer, it maintains 80% or greater capacity after 4,000 charge cycles.

Can it be charged using solar panels?

Yes.

It supports 11–60V solar input with a maximum solar input of 400W.

Can it be charged from a vehicle?

Yes.

It supports 12V and 24V vehicle auxiliary power outlet charging up to 200W.

Does it include USB charging ports?

Yes.

It features:

One 140W USB-C output
One 18W USB-A output

Is it weather resistant?

Yes.

The battery has an IP65 weather-resistant rating.

How much does it weigh?

The battery weighs approximately 21.4 lb (9.7 kg).