Anker’s SOLIX F2000 Expansion Battery is built around a single, simple promise: it should last a decade. That claim comes from their InfiniPower system, which pairs LiFePO4 chemistry with rugged components and a cooling system that checks its own temperature 100 times per second. This is a power station designed for the long haul, not just a weekend.

With a 2048Wh capacity, this unit exists to double the runtime of a compatible Anker PowerHouse like the 767. It’s a pure battery expansion, so you need a main unit to plug it into. Once connected, you’re looking at a combined 4kWh of power. That’s enough to run a full-size refrigerator for over a day, or keep a CPAP machine and a fan going for multiple nights during an outage.

The construction is solid, impact-resistant plastic, and it rolls easily on built-in wheels. Just know it weighs 67 pounds. This isn’t a grab-and-go portable. It’s a semi-permanent backup solution for a home base, a campsite, or a job site where you need serious, durable power that scales.