A foundational, high-capacity 3072Wh (3.072kWh) heavy-duty LiFePO4 expansion battery pack. Equipped with independent solar and AC charging capabilities, this unit serves as the core storage building block to scale up modular home power stations like the AC300 system. It handles extreme cycling demands effortlessly, making it perfect for daily home backup across Nigeria. It also boasts built-in DC utility ports, meaning it can function as a standalone low-voltage generator to power laptops, 12V appliances, and lighting during emergencies.