Brand New BLUETTI B300S Expansion Battery – 3,072Wh LiFePO₄ – Unused

Selling a brand new BLUETTI B300S Expansion Battery. Never used, still in excellent condition.

This is a high-capacity modular battery designed for the BLUETTI AC500 solar generator / home backup system. Add it to an AC500 setup for massive expandable energy storage — up to 18,432Wh with six B300S batteries. (BLUETTI-US⁠)

Perfect for:

* Home backup power during outages
* RVs and vanlife
* Off-grid cabins
* Camping and overlanding
* Solar energy storage
* Emergency preparedness

Features:

* 3,072Wh capacity
* LiFePO₄ battery chemistry for long life
* 3,500+ charge cycles to 80% capacity
* Built-in 100W USB-C, USB-A, and 12V/10A car-style DC output
* Can charge from AC power, solar, or vehicle charging sources
* Temperature-adaptive heating for cold-weather operation
* Modular design for expanding a BLUETTI power system (BLUETTI-US⁠)

Compatible with:

* BLUETTI AC500 + B300S modular power system
* Up to 6× B300S batteries with AC500 for a large whole-home/off-grid setup (BLUETTI-US⁠)

A great way to add serious battery capacity without buying a whole new power station.

Condition: Brand new, never used.

Selling because I ended up with an extra unit and don’t need it.

Local pickup.