Android's power management transformed from a primitive binary system to a sophisticated, AI-driven state machine. Early versions gave developers total control via WakeLocks, leading to severe Battery Bleed. The shift began with Project Volta in Android 5.0, introducing the JobScheduler to batch tasks and move from imperative to declarative execution.

The proactive era, starting with Android 6.0's Doze Mode, added complexity by monitoring device movement. Deep Doze and Light Doze throttled background work, while Android 8.0's Background Execution Limits effectively froze invisible apps. This moved development from deterministic to opportunistic, forcing reliance on tools like WorkManager.

Today, the predictive era uses AI to categorize apps into Standby Buckets (Active to Restricted) based on usage patterns. Android 15 accelerates Doze entry by 50%, shrinking maintenance windows. Leaks for Android 16 suggest adaptive resource tiers, throttling even while charging to preserve battery health, further challenging developers.