BLUETTI B300K Expansion Battery

Expansion battery module, designed to increase the total capacity of energy systems based on BLUETTI charging stations. Unlike full-fledged portable power stations, this is a standalone battery block without outlets and a large number of outputs, the main task of which is to extend the operating time of the main station. The module is equipped with an automotive-grade lithium iron phosphate battery with a capacity of 2764.8 Wh and a lifespan of over 4000 charge-discharge cycles before the depth of discharge falls below 80%, ensuring a long-term service life with daily use.

The BLUETTI B300K expansion battery is compatible with AC200L, AC200MAX, AC300, and AC500 charging stations, allowing flexible scaling of the energy system to meet specific needs. When connected to an AC500, the maximum total capacity of the assembly can reach 16588 Wh, which is sufficient for providing autonomous power supply for an extended period. The block can work not only as an expansion module but also as an independent power source thanks to the presence of one 12W USB-A port for charging mobile devices, tablets, or small gadgets.

The battery can be charged from solar panels or through the two specialized expansion ports. When working together with AC300 or AC500, the block charges to 80% in about 45 minutes. The case is made of aluminum with an integrated cooling system and advanced AI-BMS technology to monitor battery status. The module dimensions are 525x327x209 mm with a weight of 29.5 kg, and handles are provided for easy transportation.