🔋 Battery Life Calculator

Calculate battery runtime, required capacity, and power consumption. Analyze battery performance for electronic devices and systems with detailed calculations.

Calculation Type

Input Parameters

Battery Runtime Calculation
Runtime = (Battery Capacity × Efficiency) / Load Current
Calculate how long a battery will last under a given load
%

Results & Analysis

Enter values and click Calculate to see battery analysis results

Battery Technology Guide

Battery Chemistry Comparison

  • Li-ion: 85-95% efficiency, 300-500 cycles
  • Li-Po: 85-95% efficiency, 300-500 cycles
  • NiMH: 70-85% efficiency, 500-1000 cycles
  • Lead Acid: 80-85% efficiency, 200-300 cycles

Key Factors

  • Discharge rate affects capacity
  • Temperature impacts performance
  • Depth of discharge affects lifespan
  • Age reduces effective capacity