Bluetti B300K additional battery. Powerful additional energy for emergency power and outdoor adventures. The Bluetti B300K additional battery provides reliable energy for a wide range of applications - from emergency power supply at home to mobile off-grid solutions when travelling. With its robust design and high storage capacity of 2764.8 Wh, this additional battery is the ideal addition to your Bluetti Power Station. High battery capacity of 2764.8 Wh for a long-lasting power supply. Two expansion ports (58.4 V, 90 A) for versatile connection options. USB-A port for direct charging of smaller devices. LED display for battery status and function overview. Long-life LFP battery cells with over 4000 cycles. The Bluetti B300K is specially designed for use as an additional battery in combination with Bluetti Power Stations and delivers a powerful capacity of 2764.8 Wh. The battery uses long-life LiFePO4 cells that offer over 4000 charge cycles at 80% capacity and are therefore designed for years of use. With a maximum charging capacity of 60 A and two expansion ports, it provides a flexible power supply for a wide range of applications. The integrated status LEDs provide information about the current charge status and the operational safety of the battery at all times. Robust IP20 protection and the low-noise design make it ideal for reliable power supply - both for indoor and outdoor use.