The JUPIO Panasonic DMW-BLJ31E is a premium third-party rechargeable lithium-ion battery designed as a reliable alternative to the original Panasonic battery for the Lumix S Series cameras. With a capacity of 3500mAh at 7.4V, this battery delivers extended shooting time and consistent power output for your Lumix DC-S1 and DC-S1R mirrorless cameras. Built with high-end lithium-ion cells and engineered for safety and reliability, the DMW-BLJ31E provides an affordable solution for photographers who need backup power or extended shooting sessions. Backed by JUPIO's industry-leading 3-year Australian warranty, you can shoot with confidence knowing your power source is fully supported.