Extra 4096Wh battery for the DELTA Pro 3 — same capacity as the station, with the same 5-year warranty.
Our own read for home backup during a power outage, comparable across units in the catalog. Not Amazon buyers' rating. How we score →
The extra battery with the best warranty in the catalog (5 years, same as the station).
Best use case
Anyone who already has a DELTA Pro 3 and confirmed they need several days of backup for the whole house.
Adds another 4096 Wh to a DELTA Pro 3, with a 5-year warranty — the same coverage as the main station, unlike other extra batteries in the catalog with shorter warranties.
Combining several units and extra batteries, the DELTA Pro 3 can reach up to 48 kWh — several days of backup for a whole house.
Ideal for: Anyone who already has a DELTA Pro 3 and confirmed they need several days of backup for the whole house.
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BLUETTIExtra 5120Wh battery, the largest capacity in the catalog. Compatible with multiple BLUETTI stations. 45 kg.
EcoFlowExtra 3600Wh battery for the DELTA Pro — doubles its capacity. With 2 extra batteries it reaches 10.8 kWh.
EcoFlowExtra 6144Wh battery for the DELTA Pro Ultra or Ultra X — same capacity as the base station. 50.7 kg.
EcoFlow Extra Battery DELTA Pro 3 4096Wh