Battery Power Calculator

Calculate charging time, battery life, and power consumption

How much power your device uses
Power output of your charger
Battery storage capacity
Battery voltage rating

Results

50.0 Wh
Battery Capacity
10.0 hours
Runtime
6.2 hours
Charging Time

Understanding the Results

This calculator helps you understand power relationships between your devices and battery solutions:
  • Watt-hours (Wh) represent the total energy capacity of your battery
  • Runtime shows how long your device can operate on the battery
  • Charging time estimates how long it takes to fully charge the battery
  • Energy cost shows daily electricity consumption cost
  • Charge cycles indicates how often you'd need to recharge per year
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