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In a competitive showdown during Prime Day 2026, we tested the battery life of two popular ultraportable laptops: the LG Gram and the MacBook Air. With consumers increasingly valuing portability and battery longevity, understanding how these devices perform under real-world conditions is essential for making an informed purchase.
Test Setup and Methodology
Our testing focused on typical daily usage scenarios, including web browsing, document editing, video streaming, and light photo editing. Both laptops were fully charged before starting the tests, and screen brightness was set to 150 nits to simulate average usage. Wi-Fi was enabled, and background processes were minimized to ensure consistency.
Devices Under Test
- LG Gram 17 (2026 Model): Intel Core i7, 16GB RAM, 80Wh battery
- MacBook Air (2026 M2 model): Apple M2 chip, 16GB RAM, 52.6Wh battery
Battery Life Results
The results showcased significant differences in battery endurance, reflecting the hardware and software efficiencies of each device.
LG Gram 17
The LG Gram lasted an impressive 14 hours and 30 minutes before requiring a recharge. Its large battery capacity and power-efficient components contributed to this outstanding performance, making it ideal for users who need extended use without access to power sources.
MacBook Air 2026
The MacBook Air achieved a battery life of approximately 12 hours and 45 minutes. While slightly shorter than the LG Gram, it still offers excellent endurance, especially considering its compact design and high-performance M2 chip.
Analysis and Implications
The test results highlight the advantages of larger batteries and power management in Windows-based laptops like the LG Gram. However, the MacBook Air’s efficiency and integration with macOS provide a competitive edge for users invested in the Apple ecosystem.
Considerations for Buyers
- For extended battery life: The LG Gram is the better choice for users who prioritize longevity for all-day tasks.
- For portability and ecosystem integration: The MacBook Air offers a balance of performance and battery life in a compact form factor.
- Usage patterns: Heavy multitasking or video editing may impact battery life differently depending on the device’s hardware efficiencies.
Conclusion
During Prime Day 2026, both the LG Gram and MacBook Air demonstrated strong battery performances tailored to different user needs. The LG Gram’s superior endurance makes it ideal for long work sessions away from power sources, while the MacBook Air remains a versatile and highly efficient option for everyday use.