How to Use the Mobile Game Battery Life Calculator
Enter your phone's battery capacity (mAh) and the game's power draw (W). The calculator converts capacity to watt-hours using the battery voltage, applies a 90% efficiency factor, and outputs the estimated play time.
Typical power draw reference: casual puzzle/idle games 1–2W, RPG/strategy 2–4W, 3D action/battle royale 4–6W. Check your phone's battery settings for a more accurate figure specific to your game.
Enter your current battery percentage to see how long you can play right now. The voltage field defaults to 3.7V which covers most lithium-ion smartphone batteries.
Frequently Asked Questions
If your charger delivers more power than the game consumes, the battery charges while you play. This calculator estimates drain from battery alone — for charge-while-playing scenarios, subtract your charging wattage from the game draw.
The calculator assumes ideal conditions. Real-world battery aging, Wi-Fi, LTE, and screen brightness add significant extra drain. Treat results as the upper-bound estimate.