EcoFlow WAVE 3 Add-on Battery — 1024Wh LFP Power for Up to 8 Hours of Wireless Comfort
The WAVE 3 Add-on Battery delivers 1024Wh of LFP capacity for fully wireless WAVE 3 operation — up to 8 hours of continuous cooling or heating without an outlet. Its detachable design lets you carry it separately or stow it away, with fast charging via AC, solar, or the EcoFlow Alternator Charger.
⚠ Compatibility. Designed specifically for the EcoFlow WAVE 3 portable air conditioner. Verify compatibility with WAVE 2 separately before cross-using.
Key Features
- 1024Wh LFP Capacity — Powers up to 8 hours of WAVE 3 operation; 4,000-cycle lifespan to 80% capacity for years of reliable use
- Fast Charging — As Fast as 75 Minutes — Combine AC and solar charging for rapid top-ups, or charge via the EcoFlow Alternator Charger while driving
- Multiple Charging Methods — AC charging (700W via XT150), solar charging (up to 400W via XT60), alternator charging (400W/800W), or car power outlet (100W emergency charging)
- Detachable, Portable Design — Carry separately from the WAVE 3 unit or stow away when not needed; IP65-rated for outdoor durability
- High-Output Connectivity — 858W max output power; USB-A (18W Max) and USB-C (140W Max) ports for charging additional devices
- Wide Operating Range — Charges from 32–113°F and discharges from 14–122°F for reliable performance across seasons
Specifications
| Specification | Detail |
|---|---|
| Battery Capacity | 1024Wh, 51.2V, 20Ah |
| Battery Chemistry | LFP (LiFePO4) |
| Cycle Life | 80%+ capacity after 4,000 cycles |
| Maximum Input Power | 1000W Max |
| Automobile Auxiliary Power Charging | 12V/24V, 8A Max, 200W Max |
| Solar Input | 11–60V, 13A Max, 400W Max |
| Maximum Output Power | 858W Max |
| USB-A Output | 5/9/12V, 2.4/2/1.5A, 18W Max |
| USB-C Output | 5/9/12/15V⎓3A Max; 20V/28V⎓5A Max, 140W Max |
| Charge Temperature | 32–113°F (0–45°C) |
| Discharge Temperature | 14–122°F (-10–50°C) |
| IP Rating | IP65 |
| Net Weight | 21.4 lb / 9.7 kg |
| Dimensions (L×W×H) | 20.3 × 11.1 × 4.4 in / 516 × 281 × 111 mm |
| Fast Charge Time | As fast as 75 minutes (AC + solar combined) |
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