EcoFlow WAVE 3 Add-On Battery | 1024Wh LFP

EcoFlow WAVE 3 Add-On Battery — 1024Wh of Portable Runtime

Give your EcoFlow WAVE 3 more time away from an outlet. The WAVE 3 Add-On Battery adds 1,024Wh of portable LiFePO4 storage in a detachable pack designed to sit neatly beneath the air conditioner. It is a practical upgrade for camping, RV travel, van life, emergency cooling, workshops, boats, and any setup where wall power is limited.

This is the updated WAVE 3 battery—not the older WAVE 2 NCM battery. The new design uses long-life LFP battery chemistry, supports up to 4,000 cycles before reaching 80% capacity, and adds useful charging and device-power options through its solar, vehicle, USB-A, and USB-C connections.

Key Features

• 1,024Wh capacity: Extends WAVE 3 cooling or heating runtime for approximately 2–8 hours, depending on mode, temperature, settings, and operating conditions.
• Long-life LiFePO4 battery: Rated to retain at least 80% capacity after 4,000 cycles.
• Detachable and portable: Use it beneath the WAVE 3, then remove it for carrying or storage.
• Solar-ready: Accepts up to 400W of solar input through its XT60 input range.
• Vehicle charging: Supports 12V or 24V vehicle auxiliary power input up to 200W.
• Power for small devices: Includes USB-A and high-output USB-C charging.
• Outdoor-ready battery pack: IP65-rated against dust and water jets when used according to EcoFlow instructions.

Why Upgrade to the WAVE 3 Add-On Battery?

The big improvement is not simply the capacity. EcoFlow moved this generation to LFP battery chemistry, which is better suited to frequent charging and long-term use. It also gives you more flexibility when you are away from shore power. Solar can recharge the battery during the day, a vehicle can supply energy while traveling, and the USB ports can handle phones, tablets, laptops, and other compatible electronics.

For real-world use, that means fewer compromises. You can cool a sleeping area overnight, take the WAVE 3 farther from an outlet, or keep the battery charging while the air conditioner is not needed. Runtime will vary, but EcoFlow rates the WAVE 3 system for roughly 2 to 8 hours with the add-on battery.

Best Uses

• Extending WAVE 3 runtime in an RV, camper, or travel trailer
• Cooling or heating tents and vehicle sleeping areas
• Van-life and overlanding setups with solar charging
• Emergency comfort during short power outages
• Portable workshops, garages, boats, and enclosed jobsite areas
• Charging USB devices while traveling off-grid

Full Specifications

Frequently Asked Questions

How long will the WAVE 3 run on this battery?

EcoFlow lists an approximate runtime of 2–8 hours. Actual runtime depends on cooling or heating mode, fan speed, starting temperature, target temperature, ventilation, and outdoor conditions.

Can the WAVE 3 battery charge from solar panels?

Yes. The battery accepts 11–60V solar input at up to 13A and 400W. Always verify the connected panel array stays within the battery’s voltage and current limits.

Can I charge phones or a laptop directly from the battery?

Yes. The battery includes USB-A output up to 18W and USB-C output up to 140W for compatible devices.

Is this the same battery used by the WAVE 2?

No. This page is for the updated EcoFlow WAVE 3 Add-On Battery. Do not assume that WAVE 2 batteries, cables, or accessories are interchangeable without confirming compatibility for the exact setup.

Does the battery use lithium iron phosphate cells?

Yes. It uses LiFePO4 battery chemistry and is rated for 4,000 cycles to at least 80% remaining capacity.

Need help confirming compatibility? Contact AllProGenerators.com before ordering and tell us which EcoFlow air conditioner and charging equipment you have. We will help you make sure the battery is the correct match.