BLUETTI B300 Expansion Battery | 3,072Wh, B300*2 | 6144Wh Expansion Battery

Power up your adventures with the BLUETTI B300 Expansion Battery. Each B300 module adds 3,072Wh of scalable energy, and pairing two units delivers a formidable 6,144Wh of reliable storage. Designed to work with Bluetti solar generators, the B300 expands your capacity for longer off-grid stays, emergency backups, or busy work sites. Lightweight and modular, it's easy to add a unit when you need more runtime, and the intelligent battery management protects cells while optimising charging from solar, mains, or generators. With steady, high-output performance, you can run essentials—fridges, routers, lights, and power tools—through extended outages, outdoor events, or remote cabins. The B300 is a clean, quiet, low-maintenance way to secure your power needs wherever you go.