[Beasty Add-on Battery] - Stacking up max. 4 B300 (3072Wh each) for an AC300 achieves a phenomenal power of 12288Wh. It also works well w/ AC500/AC200MAX/AC200P/EB240/EP500Pro (extra cables needed).

[3 Outlets Make a Difference] - The 100W USB-C, 12V/10A cigarette lighter, and 18W USB-A output ports are to charge your on-road essentials like smartphones, laptops, mini fridges, lights, and so on.

[Enhance the Available Watts] - With its modular design, early adopters can have more capacity of your old models by merely connecting with the B300 backup battery. More to power, less to cost.

[Dual Recharging] - Draw power from solar and grid simultaneously to replenish B300 in less than 4,4 hrs with max. 700W input. Extra accessories are required for AC/car/lead-acid battery charging.

[What You Get] - BLUETTI B300 expansion battery, external battery connection cable (P090A), solar charging cable, user manual, 48-month warranty.