Expandable energy storage lets you tailor your power supply to fit your needs. With the Bluetti B500K 5120Wh Expansion Battery, you can increase your capacity from 5.12 kWh up to more than 100 kWh*, making it easy to upgrade your setup as your requirements grow. Compatible with a range of BLUETTI power stations, the B500K offers a cost-effective solution for boosting your energy storage.
*Note: This capacity is achieved with 3 Apex 300 units and 18 B500K units.
Extend Your Backup Time
Enjoy longer power availability, whether you're seeking protection during outages, heading out on camping trips, or working off-grid. The B500K ensures you stay powered for extended periods, giving you more freedom and peace of mind.
Adapt to All Your Needs
Use the B500K to expand your BLUETTI power stations or as a standalone high-capacity power bank alongside other ecosystem components. Delivering 700 W DC output, it can charge and power your devices efficiently in any scenario.
Safe, Reliable, and Durable
Experience over a decade of safe use with the B500K’s advanced LiFePO₄ battery technology. Thanks to its third-generation wireless internal design and efficient cooling fan, you can count on stable performance—even in demanding environments.
