The EcoFlow WAVE 3 Add-On Battery is a dedicated 1024 Wh LFP pack that clips underneath the WAVE 3 portable air conditioner and lets it run entirely off-grid. With 51.2 V and 20 Ah on board and up to 858 W of continuous output, the WAVE 3 can cool or heat for up to 8 hours without a mains outlet. The pack itself weighs 9.7 kg in a slim 51.6 × 28.1 × 11.1 cm housing and is rated for 4000 charge cycles down to 80% of the original capacity.

• 1024 Wh LFP battery gives the WAVE 3 up to 8 hours of cordless cooling or heating
• Long-life cells rated for 4000 cycles to 80% of the original capacity
• Continuous output of up to 858 W to keep the WAVE 3 running under load
• Charges together with the WAVE 3 through AC (2 h), AC + 1000 W solar (1.7 h) or 400 W solar (3 h)
• Also compatible with the EcoFlow 800W Alternator Charger for 1.7 h recharge on the go
• 51.2 V system voltage and 20 Ah cell capacity for stable high-power operation
• 2-year manufacturer warranty on the battery pack

Key specs

• Capacity: 1024 Wh, 51.2 V, 20 Ah
• Cell chemistry: LFP
• Cycle life: 4000 cycles to 80%
• Max output: 858 W
• Dimensions: 51.6 × 28.1 × 11.1 cm
• Weight: 9.7 kg
• Warranty: 2 years

A logical add-on for van conversions, roof tents and worksite cabins where the WAVE 3 has to run for hours without direct access to a socket.