B300K Expansion Battery

The B300K Expansion Battery offers 2764.8Wh of renewable, durable power designed to extend the runtime of your BLUETTI power stations. Compatible with models like the AC200MAX and AC300, it supports AC devices when paired with a power station and includes a USB-A port for DC devices. Ideal for home or RV use, it features efficient heat management and prismatic cells that deliver over 4,000 life cycles with up to 80% capacity retention. Weighing 29.5 kg, it powers appliances such as mini-fridges for over 13 hours or washing machines for nearly 3 hours.