Bluetti B210P Expansion Battery – Extend Your RuntimeThe B210P is a high capacity expansion battery that extends the runtime of compatible Bluetti power stations. Like the B80P, it can also serve as a standalone power source with its 3 DC ports offering flexible energy wherever you need it. Its robust LiFePO4 battery ensures long term reliability and safety for extended off grid adventures or emergency backup. Key Features: *Adds substantial additional runtime to compatible Bluetti stations *Can be used