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Ecoflow WAVE 3 Add-on battery

Ecoflow WAVE 3 Add-on battery

BY: EcoFlow | SKU: EFWAVE3-EB Availability: In Stock
$899.00
$649.00
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Ecoflow WAVE 3 Add-on battery

The EcoFlow WAVE 3 Add-On Battery is the perfect upgrade for expanding the runtime of your WAVE 3 Portable Air Conditioner. Designed to integrate seamlessly with the WAVE 3 unit, this modular battery increases portability and extends cooling time when off-grid or during power outages. Whether you’re camping, traveling, or preparing for emergencies, this add-on provides the extra power you need—no wall outlet required.

EcoFlow WAVE 3 Add-On Battery Features

Extended Cooling Runtime – More Hours of Comfort - Double your air conditioner's runtime by adding 1,159Wh of extra capacity—perfect for long nights or hot afternoons without access to power.

Modular Design – Seamless Integration - Built specifically for the WAVE 3, this battery clicks directly into place, enabling cordless operation and streamlined portability.

Multiple Charging Options – Flexible Power Input - Recharge the add-on battery via solar panels, wall outlets, car adapters, or portable power stations. Ideal for hybrid and off-grid setups.

Li-ion Battery Chemistry – Safe and Lightweight - High-quality lithium-ion cells provide efficient energy density, light weight, and long cycle life—ideal for daily or seasonal use.

Smart Monitoring – Connected Performance - View charge levels, estimated remaining time, and battery health directly through the EcoFlow app or WAVE 3 control panel.

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EcoFlow WAVE 3 Add-On Battery Applications

  • Off-Grid Camping – Enjoy all-night cooling in your tent or van without grid dependency.
  • RV and Overlanding – Extend your air conditioner’s performance while exploring remote areas.
  • Emergency Preparedness – Stay cool longer during blackouts or natural disasters.
  • Outdoor Events – Ideal for festivals, tailgates, and patio gatherings without outlet access.
  • Backyard & Garage Use – Power your WAVE 3 in sheds, workshops, or home projects where AC isn’t available.
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What's Included

Everything you need is included with your product.

  • 1 x EcoFlow WAVE 3 Add-On Battery
  • 1 x Add-On Battery Cable
  • 1 x Car Charging Cable
  • User Manual

EcoFlow WAVE 3 Add-On Battery Specifications

Category Specification Details
Compatibility Compatible With EcoFlow WAVE 3 Portable Air Conditioner
Input/Output Capacity 102.4Wh (51.2V = 20Ah)
Maximum Output 858W Max
USB-A Output 5V⎓2.4A / 9V⎓2A / 12V⎓1.5A (18W Max)
USB-C Output 5V⎓9V⎓12V⎓15V⎓3A / 20V⎓2.25A⎓5A (140W Max)
AC Output 1000W Max
Solar Input 11–60V⎓13A Max (400W Max)
Car Input 12V/24V⎓8A Max (200W Max)
Battery Runtime 2 – 8 hours
Battery Battery Cell Material LFP (LiFePO₄)
Cycle Life 80% capacity after 4000 cycles
IP Rating IP65
Environment Discharge Temperature –10°C to 50°C (14°F to 122°F)
Charge Temperature 0°C to 45°C (32°F to 113°F)
Storage Temperature –10°C to 45°C (14°F to 113°F)
General Operating Altitude <2000 m (6562 ft)
Net Weight 9.7 kg (21.4 lb)
Dimensions 516 × 281 × 111 mm (20.3 × 11.1 × 4.4 in)

EcoFlow WAVE 3 Add-On Battery Videos

Frequently-Asked Questions

Does the add-on battery work by itself?

No. This battery is an expansion unit only and must be connected to the EcoFlow WAVE 3 Portable Air Conditioner to function.

How much extra runtime will I get?

The add-on provides up to 8 hours of additional runtime in Eco Mode, depending on temperature, mode, and ambient conditions.

Can I charge the battery separately?

Yes. The battery can be charged independently via AC, solar, or a portable power station before attaching to the WAVE 3.

Is installation difficult?

Not at all. It’s a snap-on modular design that attaches securely to the bottom of the WAVE 3 in seconds—no tools needed.