Peukert Number Battery Life Calculator

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This tutorial provides an overview of the Peukert Number and its significance in battery life calculations. It explains the concept of the Peukert Number, the associated formula and calculations based on rated battery capacity, discharge rate, and Peukert's Number. Real-life applications, key individuals, and interesting facts are also discussed. This content is relevant to the field of Electrical Engineering, specifically in battery technology and energy storage systems

The Peukert Number is a critical parameter in battery technology and is used to estimate battery life under different discharge conditions. This tutorial aims to provide an understanding of the Peukert Number and its associated calculations and formulas. It covers the concept of the Peukert Number, the calculation formula for determining battery life, real-life applications in industry, key individuals in the discipline, and interesting facts about this topic and its significance in the field of engineering.

Peukert Number Battery Life Calculator
Peukert Number Battery Life Calculator Results
Calcuated Battery Capacity = Ah
Full Discharge Time = Hours
Manufacturer's 80% Discharge Time = Hours
75% Discharge Time = Hours
50% Discharge Time = Hours
25% Discharge Time = Hours

Example Formula

The formula for estimating battery life using the Peukert Number is as follows:

Battery Life (in hours) = (Rated Battery Capacity / (Discharge Rate × Peukert's Number))(1 / Peukert's Number)


  1. Rated Battery Capacity: The rated capacity of the battery, typically expressed in ampere-hours (Ah).
  2. Discharge Rate: The rate at which the battery is being discharged, typically expressed in amperes (A).
  3. Peukert's Number: A dimensionless parameter that represents the effect of the discharge rate on battery capacity and efficiency. It varies depending on the battery chemistry and design.

Who wrote/refined the formula

The concept of the Peukert Number was introduced by the German physicist Wilhelm Peukert in the late 19th century. Peukert conducted extensive research on battery discharge characteristics and proposed the Peukert equation to account for the non-linear relationship between battery capacity and discharge rate.

Real-Life Application in Industry

The Peukert Number and the associated battery life calculations are crucial in the design and optimization of battery systems for various applications. It is widely used in industries such as automotive, renewable energy, portable electronics, and energy storage systems. By understanding the Peukert Number, engineers can accurately estimate battery life and design battery systems that meet specific performance requirements.

Key Individuals in the Discipline

Wilhelm Peukert is the key individual associated with the development of the Peukert Number and its application in battery technology. His research and contributions to the understanding of battery discharge characteristics have significantly influenced the field of electrical engineering and battery design.

Interesting Facts

- The Peukert Number is an important factor to consider in battery selection and sizing for applications with varying discharge rates.

- Different battery chemistries have different Peukert Numbers, indicating their ability to deliver energy efficiently at different discharge rates.

- The Peukert Number can help predict the runtime of a battery under different load conditions and assist in optimizing battery system performance.


The Peukert Number plays a significant role in estimating battery life and optimizing battery system performance. By considering the Peukert Number in battery design and calculations, engineers can make informed decisions regarding battery selection and application-specific requirements. The Peukert Number has revolutionized the field of battery technology, enabling the development of efficient and reliable energy storage solutions for a wide range of applications.