Google Pixel phones include Adaptive Charging and a Limit to 80% mode to combat lithium-ion battery degradation. Adaptive Charging learns your overnight habits, delaying a full charge until just before you wake up. The 80% limit is a stricter, manual cap for maximum longevity, though it sacrifices daily capacity. Both features aim to reduce stress from keeping the battery at maximum capacity for extended periods.

Adaptive Charging is available for the Pixel 4a and later, while the 80% limit requires a Pixel 6a or newer. The older Pixel 4's version works differently, using your alarm to gauge wake-up time instead of learning habits. Enabling either option is straightforward via the Settings app under Battery > Battery health > Charging optimization, a move designed to extend usable phone lifespan for consumers.

For most users, Adaptive Charging offers a sensible balance with minimal downside. The hard 80% limit is best suited for those who rarely drain their battery. This focus on battery health reflects a broader industry trend, as seen with the Pixel 10's mandatory throttling after 200 cycles. Ultimately, these tools give users more control over a phone's most consumable component.