Bluetti B500K Expansion Battery

With the Bluetti B500K, you add 5.12 kWh of extra storage to your Bluetti system in one go. This expansion battery works with power stations such as the Bluetti AC200MAX, AC200P L, AC300, AC500 and Apex 300 and grows along with your needs. By connecting multiple B500K modules, you can gradually build up a serious setup with up to 100 kWh of total storage capacity.

The B500K is designed as an expansion battery: it increases the storage capacity of your existing setup. In most cases, you connect the B500K directly to a compatible Bluetti power station. Within the Bluetti ecosystem, you can also combine the battery with accessories such as the SolarX 4K (for faster charging via solar panels) and the upcoming Charger 2 (for powerful AC charging). This lets you benefit from higher charging power, both from the sun and from the grid. The B500K is also designed to work with future Bluetti products, so you can easily expand your system later on.

If you use a lot of DC devices, for example in an RV or in a fixed off-grid setup, you can use the B500K as a 48 V battery within a DC system. Combined with the Hub D1 DC Power Hub, there are various options for powering DC loads, tailored to your configuration. This allows you to use the same battery at home, in an RV or in an off-grid installation.

The B500K is engineered for long-term use. Its internal cable-free layout reduces the number of vulnerable connections, and the robust housing is suitable for everyday use at home or in a small business environment. Weighing around 45 kg and measuring 520 × 327 × 308.5 mm, it will usually get a fixed place in your setup. Thanks to the pre-drilled mounting points, you can securely mount the battery to a wall or shelf, including in an RV. If you prefer to keep it mobile, you can attach the B500K to the Bluetti Foldable Trolley 2 for a stable, movable setup.