Casper Excalibur G915 achieves 10-hour battery life in SGS test

The Casper Excalibur G915 gaming laptop achieved a battery life of 10 hours and 34 minutes during a 2K video playback test conducted by the independent Swiss testing institution SGS. The measurement was performed in energy-saving mode with no internet connection, tracking the battery drain from 95% to 5%.

Casper’s Excalibur series includes several models with varying specifications. The G870 serves as an entry-to-mid-range option, the G915 is positioned as mid-to-high-end, and the G920 is the flagship series featuring high-end components such as the RTX 5090 GPU. Common features across these models include aluminum-heavy chassis construction and the FrostFlux Cooling Architecture.