- Increase the capacity of DELTA 3 Plus/DELTA 3 with an extra 1024Wh. - Get 10 years of daily use until it hits 80% of its original capacity. Embrace 4000+ charging cycles enabled by the LFP battery chemistry. - Plug-and-play system. Use the EcoFlow app to monitor and control the DELTA 3 Smart Extra Battery. - With one of the most comprehensive 2-year warranties available, we go the extra mile to give you peace of mind. - Dimension: 398 × 200 × 198 mm. - Weight: 9.6 kg (21.2 lb)