Skip to main content
State-of-the-art tool kit for fitting battery aging data and for battery life estimation
Intellectual Property Available to License

Argonne’s Battery Life Estimator (BLE) software is a state-of-the-art tool kit for fitting battery aging data and for battery life estimation. It was designed to make life-cycle estimates using two years of aging data.

BLE helps answer key questions on how battery performance will change with calendar age, cycles, internal component aging, cell-to-cell manufacturing variations, summer and winter temperature extremes, differing anode and cathode materials, and electrolyte variations and additives.

The software employs a generalized statistical approach to fit data from accelerated aging experiments to a life equation. The BLE software is different from other curve-fitting routines as it employs robust fitting techniques and estimates battery life by using Monte Carlo techniques (which most generalized curve-fitting software does not consider).


  • Fit battery aging data to life equations
  • Estimate battery life


  • Easy to learn
  • Fast run times
  • Easy-to-use graphical user interface
  • User guide includes examples and frequently asked questions

Technical Details/Requirements

  • Requires PC computer with a Pentium 4 processor, 1 GB of memory and VGA graphics
  • Operates on a Windows 2000 or later system and requires Microsoft .NET framework versions 1.1 through 3.5