BLUETTI B500K Expansion Battery | 5,120Wh

The BLUETTI B500K is a 5,120Wh LiFePO4 expansion battery designed to extend the capacity of compatible BLUETTI power stations, specifically the AC200L and AC300. It connects seamlessly to these units to significantly increase total energy storage for home backup, RV living, solar systems, and long-duration off-grid power needs.

With 5,120Wh of stored energy, the B500K can run a refrigerator for over 24 hours, keep lights, fans, and a router running for multiple days, and power laptops and medical devices for extended periods during a blackout. Actual runtime depends on the total wattage of connected appliances, but it is built to handle whole-night and multi-day outage scenarios comfortably.

The B500K uses LiFePO4 cells rated for over 3,500 charge cycles before capacity noticeably degrades. Under regular daily use, this translates to a reliable service life of approximately 10 years or more, making it a cost-effective long-term investment compared to conventional lithium-ion or lead-acid battery alternatives.

Yes, when paired with a compatible BLUETTI AC200L or AC300 power station, the B500K fully supports high-efficiency solar charging for off-grid and renewable energy applications. This makes it an ideal storage solution for remote cabins, sustainable home power systems, and RV solar setups where reducing utility dependence is a priority.

The B500K is equipped with an advanced Battery Management System that provides overvoltage protection, temperature monitoring, short-circuit protection, and overcharge and over-discharge control. These protections work continuously to keep the battery operating safely and efficiently whether it is used indoors for home backup or outdoors in field and mobile environments.

Yes, the B500K is an excellent energy storage solution for full-time RV and van life where large capacity, solar compatibility, and long battery lifespan are all essential. Its LiFePO4 chemistry handles the daily charge and discharge cycling typical of mobile solar setups, and its seamless integration with the AC200L and AC300 makes scaling your system straightforward as your needs evolve.

The B500K offers significantly more capacity at 5,120Wh compared to the B300K at 2,764.8Wh and the B300S at 3,072Wh per unit, making it the better choice when maximum storage per module is the priority. However, it is compatible with the AC200L and AC300 rather than the AC500, so compatibility with your existing power station is the most important factor when choosing between these expansion battery options.

Yes, the B500K is designed for scalable integration with compatible BLUETTI power stations, allowing you to build a larger multi-battery energy system as your power requirements grow. Whether you need a home backup solution, a solar off-grid setup, or a high-capacity mobile power bank, the system can be expanded to match your specific energy demands over time.

The B500K is a strong investment for Jamaican households where frequent grid outages, high electricity costs, and growing solar adoption make large-capacity energy storage highly practical. Its 5,120Wh LiFePO4 battery, solar charging compatibility, and 3,500+ cycle lifespan provide reliable long-term backup power that can significantly reduce dependence on the grid and generator fuel costs.