Battery packs built on Amprius SiCore™ silicon anode cells, up to 450 Wh/kg at the cell level. More endurance and payload in the same weight budget. The hard choices are already made.
Each Gravitas pack is engineered backward from one binding constraint: endurance or peak power. You start with the build that matches your problem, not a catalog you adapt to.
Built for platforms where mission duration is the binding constraint. Cell selection and pack architecture prioritize energy density across the full discharge curve. When flight time is the metric that matters, Lift is the starting point.
Built for peak output. Discharge architecture supports sustained high-C operation with thermal margins sized for demanding-cycle use. When instantaneous power is the constraint, Thrust is the answer.
Both lines are built on Amprius SiCore™ silicon anode cells, the same technology used in high-altitude unmanned aircraft. Up to 450 Wh/kg at the cell level. The pack starts with the right cell.
Gravitas SKUs are not catalog items. We identified the most demanding power-to-weight use cases and engineered backward. Voltage, capacity, and form factor are locked, because locking them was the work. A pack built for your flight profile, not a catalog item you design around.
The cell sets the ceiling. Up to 450 Wh/kg at the cell level means more usable energy in the same weight budget, or the same energy in a lighter pack. On a fixed airframe that converts directly into longer endurance, more payload, or higher climb margin. You design the mission; the pack stops being the limit.
Name, email, and the platform you're building. We come back with the build that fits and the pack-level numbers behind it. No sales call required.